In 2151,
Enterprise NX-01, the first human starship to travel with speeds far beyond the warp 2
reached by Earth Star Fleet ships up to then, thus getting the chance to explore regions
of deep space where no man has gone before, departs from Earth for its interstellar
mission of exploration. With warp 5, what is revolutionary up to this moment, but will be
a considerably low speed in the centuries to come, Enterprise and its crew surveys what
will become the "Galactic neighbourhood" of one big United Federation of Planets
in the 23rd and 24th century.
This chapter's goal is to explore the Cartography and (specifically) distance issues which
are (deliberately, but - "thanks" to various scientific and continuity problems
in the fifth Star Trek series "Enterprise" - more often unintentionally) tackled
in the course of this mission.

The speed of
Enterprise NX-01

To deal with maps and distances
regarding the starship Enterprise, we first have to nail down its maximum speed, which
will be, judging from the already aired episodes, apparently far more often and regularly
used than the maximum speeds of the Starfleet vessels to come, what is, from a
production-wise point of view, no surprise given that every speed lower than this (already
quite low) warp factor would make the travels shown and distances bridged even more
unbelievable.

The "low tech" warp core of Enterprise
NX-01

As we know from the background
"Bible" excerpts of the show, Enterprise is supposed to travel with warp 5. The
on screen dialogue in the pilot "Broken Bow" (between chief engineer Charles
Tucker and the newly arrived senior officers, in engineering) suggests an up to then
reachable speed of warp 4.5, and indeed it seems this episode, and the depicted mission,
does not feature a higher speed. However, the first regular episodes ("Fight or
Flight") will introduce the aforementioned maximum speed rather unspectularly, so
that there remains no doubt regarding Enterprise's speed limit at least at this early
point of the mission (Who knows what future upgrades the writers will imagine?)

However, the actual question regarding
Enterprise's speed is - how fast is warp 4.5 and warp 5, respectively, in this series? Of
course, we can ask this question for every series and every movie - given that the writers
prefer to use "plot drive", i.e. make warp speeds as fast as needed in the
respective episodes, anyway. However, it remains a fact that certain warp scales and warp
formulas have been derived, stated in background documentations like "The Making of
Star Trek" and the ST:TNG TM. It is true that this stuff can be only regarded as
"semi-canon" at best, as non of the formulae have been ever directly mentioned
on screen, however, at least the formula from the latter documentation has been obviously
used in the post-TOS Trek series TNG, DS9 and VOY, given that we can reproduce many of the
figures given in dialoge (like "it will take us x hours at warp y to reach z").
As mentioned in chapter 1.2, the post-TOS warp formula that fits best the graph given in
the ST:TNG TM is

v/c(w)=w(10/3)+(10-w)(-11/3)

a funcion converging against
v/c(10)=infinity (that's what we call a "vertical asymptote") as the theoretical
maximum warp speed. TOS, however, did not seem to use any consistent warp scale.
Nevertheless, the mentioned "Making of" book establishes the much simpler
formula

v/c(w)=w3

for speeds in the Original Series, a
formula that has been adapted by most of the fandom literature since the 1960s.

Given this situation, there are three
possibilities regarding Enterprise's "actual" speed (in multiples of the light
speed rather than a obscure warp factor)

it is calculated according to the TOS
scale

it is calculated according to the TNG
scale

it is calculated according to yet
another scale

If we consider "Trek
explanations" for the different warp scales, we quickly realize that possibility 2
makes no sense. The TNG scale is, as noted, much more complex than the TOS scale, which
does not feature any asymptotes but only a simple exponential increase. It has therefore
been suggested that in the 100 years between the two scales, the understanding of warp
physics has been deepened, and thus the scale was refined according to the new insights.
Now obviously it would make no sense that a century before TOS the TNG scale was already
in use, while it was abandoned during the times of Captain Kirk only to be reintroduced in
the 24th century.
Given that possibility three isn't an option either, as this scale, no matter how it
looks like, would need to produce slower speeds than the TOS scale anyway, one has
to come to the conclusion that the formula from "Making of Star Trek" would
indeed fit best in the 22nd century.

Unfortunately, technical consultant
Andre Bormanis suggested the use of the TNG scale in "Enterprise", as the
producers and writers are - of course - very interested in making the ship as fast as
possible, even if it means to disrupt the scientific credibility of the show, sadly.
However, as we will see, at least the pilot does not concur with his statements, but
surprisingly supports above mentioned conclusion.

Indeed, we have two points of evidence
supporting the TOS scale which are actually mentioned in the pilot and are therefore
canon. By the way, I ignore Zefram Cochrane's statement in this episode of the new warp
speeds being "a hundred times faster" here, as speeds of 800 to 1,000c (given
that background sources mention a top speed of warp 2 for the other Star Fleet ships, and
"Fortunate Son" confirms this with a top speed of warp 1.8 for the there
featured cargo ship) clearly contradict the lower (!) travel speeds of Kirk's Enterprise,
as they are almost in range of 24th century top travel speeds.

1) "Neptune and back in six
minutes"

This is mentioned right in the first
minutes of "Broken Bow", in the shuttle pod inspection scene. From the dialogue
we know that this destination can be reached at said time (supposedly from Earth, as they
are near Earth at that time, and it would make no sense for a human to give such a figure
thinking in other than geocentric terms) at warp 4.5, the speed finally applied in the
two-parter. If we do the math - bridging the 4,497,000,000 km
between Earth and Neptune in 6min/2=3min=180s - we get a speed of app. 24,983,333 km/s,
what equals roughly 83c. TOS warp 4.5 equals, according to the formula, 91.125c, what is a
rough match given that the writers (or whoever came up with these figures) may have worked
with less accurate values, while TNG warp 4.5 = 150c is certainly not within the tolerance
range anymore.

2) "Thirty million kilometers per
second"

Even more convincing than above - slightly vague -
evidence is the scene in which Enterprise actually jumps to warp 4.5 for the first time,
with the warp factor slowly increasing and Captain Archer - as one of the very few times
in Trek - actually mentions a direct speed figure which can be associated with a warp
factor. Evidently, some time after Enterprise has passed warp 4.4 (the last warp factor to
be mentioned in this scene, though we know they're heading for 4.5), Archer mentions that
they're travelling at 30,000,000 km/s, that is, without any calculations, about 100c.
Using the above pointed out values, this is again a rough match with TOS warp 4.5 (100c
would be warp 4.64), while TNG warp 4.5 are nowhere near this value (otherwise it would be
an error of 50%!).

Now, while it is certainly clear now that the
"Enterprise" writers and/or technical consultants were using the TOS scale for
the figures in the pilot, statements like that of Andre Bormanis (made some time
afterwards) and other - though not that clear and conclusive - proves in following
episodes seem to hint a change of mind regarding the scale to be used in the show. As I
stated, it makes no sense to apply a scale that apparently won't be introduced before two
centuries in the future, and we also shouldn't forget that Enterprise has to remain, by
all means, considerably slower than Kirk's Enterprise, let alone the high warp starships
to come, in order to avoid problems with species, territories and phenomena which then
"should be known" according to the speeds and thus distances Enterprise can
travel, but clearly aren't known until the 23rd or 24th century given that those things
have been mentioned as "first time occurrences" there. The "Enterprise"
writers are walking a thin line here, pursuing "plot drive" episodes as in the
past (already proven by the pilot, as we will see) yet having close restrictions when it
comes to maintain the inter-series continuity in this especially demanding case of a
prequel series, i.e. a series predating events of 600 episodes and 10 feature films.

But let's take a closer look at how
imminent this danger of "being too fast for credibility" is. If we take a look
at the official map of the Galactic neighbourhood as it looks like in the 24th century (in
the Star Trek universe, anyway), and discard the Klingons as first contact with them (to
be dealt with in section 5.2.2), and a short trip to their home world, is the topic of the
pilot, we have three major players - the Cardassians (and Bajorans), the Ferengi and the
Romulans - that shouldn't be known by Enterprise by now. While we may neglect the case of
the Romulans for the moment as we know that Earth will make First Contact with them a few
years after 2151, clearly putting them in the ultimate operation range of Enterprise and
the other warp 5 starships to come, we know for sure that Cardassians, Bajorans and
especially Ferengi (given that we saw first contact with them in early TNG) are races not
to be encountered in the 22nd century.

Interestingly we can reduce this three
issues to one given that DS9 suggested - on screen as well as in documentations like the
ST:DS9 TM - that all three territories are located in the same region of space, separated
by only a few (in the case of Cardassia-Bajor) or a few dozen (in the case of
Bajor-Ferenginar) light years. We then have to only consider the distance of Earth to this
region in the Alpha Quadrant. As we know, this has been a hot topic for years as there
have been no definite figures, but only vague assumptions, but we know for sure that it
can't be much more than a hundred light years (let alone the distance for half of the
territory of the Federation, assuming that Earth is close to the the center, that would
work out with 4000+ light years!) given that trips from DS9 to Earth, even if we assume
high warp travels in all cases, only took a few days up to two weeks at best.
Indeed, Rick Sternbach's ST:DS9 TM gives merely 50.3 light years as the distance of Bajor
to the "inner perimeter of the Federation" and the "core worlds of the
Federation", respectively, what is, of course, a loop hole leaving the ultimate
distance Bajor-Earth still vague. In a recent interview, Sternbach assumed that this
"inner sphere" would have a radius of only 20 light years, what results in about
70 light years distance.

But is this really an issue? As the
crew of Enterprise is "exploring", i.e. following every trace of unknown life or
an inhabited planet it can spot, we may assume that they do not travel as
"straight-lined", into one direction, as the ships in later series, whose tasks
included directed survey, diplomatic missions and cargo / personal transport missions to a
higher degree. At (TOS) warp 5, they theoretically could travel 72 light years per year,
if we deduce at least 26 missions à 3 days (a purely arbitrary assumption) - not too much
if we take into account the "zig zag route". However, already
"Civilization" established that Enterprise travelled 78 light years in less than
3 1/2 months (the first on screen lines that seems to directly support the in this case
rather inconvenient TNG scale - given that this equals about 271c = TNG warp 5.3 -, with a
possible loophole - subspace "lanes" - to be introduced later). Even with my own
assumption of altogether 120 light years as the distance Earth-Bajor (a compromise between
the extraordinarily short travel times in DS9 and a "reasonable" distance) there
is (literally) little space left for these three major players of the 24th century to
remain undiscovered (of course, this is even more a problem for TOS and Kirk's Enterprise,
though we cannot be sure if Cardassians and Bajorans weren't known at that time). At least
for the Ferengi, which strictly must remain undiscovered until 2364, there is a partial
explanation: a different distribution of power in the Alpha Quadrant in the 22nd and 23rd
century could have made their relatively small territory unreachable for Earth /
Federation ships up to a later date, for example, if the Cardassian Union completely
surrounded their space at that time. This solution is hinted at in the Map of Local Space,
though another one would be the "vastness of space" per se and the fact that the
voyages of Kirk's Enterprise - and presumably those of Archer's Enterprise as well -
focused on the Beta Quadrant and the there residing powers of the Klingon and (soon)
Romulan Empire.

A final point we have to consider is
the popular question - if Enterprise only explores the supposedly well-known Galactic
neighbourhood of a few dozen light years around Earth (and, as we have seen, is also only
"allowed" to survey these region as everything farther away would lead to
serious continuity problems), why can they discover "strange new worlds and
civilizations" that are also new to us at all? Shouldn't they encounter only
species and planets well-known in the 23rd and 24th century, and therefore well-known to
us, while the Enterprise writers, which of course have to come up with something new and
unknown up to now, exactly aim at the opposite?
Now while it is not logical, if we think about it, the answer is - surprisingly - no. As
Star Trek's goal was always the exploration of the unknown and the farthest reaches of
deep space, and the technology was depicted as considerably more advanced in the 23rd and
24 centuries than it is in "Enterprise", our own "doorstep", the
"interstellar backyard" of Earth is still the most unknown region of all! Of
course we have Andorians and Vulcans and other species here, important players in TOS,
and, rightfully so, in "Enterprise" as well; yet what do we actually know about
the other planets and species here, in this (in the Trek Galaxy) supposedly densely
populated area of space? This "proximity paradox" actually makes the entire
series per se possible - to explore the unknown of Earth near space (what we will regard
as "Earth near" from the view of the 24th century, anyway) for the crew and the
viewer without overstraining continuity and credibility too much.

Still, the point of the maximum
operation range of Enterprise, and the potential conflicts with (clearly) later
discoveries and missions, remains unsolved up to now. While the producers may be aware
enough of the issue to prevent more severe contradictions, in the end "suspending
disbelief" may be the only way to buy the deep space exploration of Enterprise in the
years to come.

Unfortunately, it is (already) the
pilot that seemingly disrupts the hope for scientific credibility and continuity in terms
of Cartography in the new series. The entire mission of bringing back the Klingon pilot to
his homeworld, as depicted in "Broken Bow", becomes a bit unbelievable and
certainly does not concur with the "vastness of space" and the "deficiency
and primitiveness of technology" that is propagated by the producers and the episode
itself.

"Four
days there, four days back"

Several times in the pilot, it is
directly expressed how short the first deep space mission of Enterprise - allegedly a
mission that would have not been possible with prior starships, thus leading the crew into
uncharted territory - will ultimately be. If there wouldn't have been complications like
the "Rigel" detour (more on this separate problem in the next subsection),
Enterprise would have needed only 4 days to reach Qo'noS, the center of the Klingon
Empire, from Earth.

Now generally, the gripe
is basically the same as with the extreme closeness of Bajor and Cardassia as witnessed
over the course of Deep Space Nine and ultimately given in the ST:DS9 TM (with slightly
more than 5 ly) - how can Earth and Q'onoS be as close neighbours as suggested in
"Broken Bow" given that these two planets will be the cores of two hundreds of
light years large interstellar alliances, which will moreover have hostile relations
almost resulting in open war in the 23rd century?

However, this special case seems to be
not only very unlikely in terms of interstellar politics (and as we see it wouldn't be the
first time we have an inconsistency in this field), but also questionable in terms of
science and technology. Using the speed figures given in the very same episode (and
examined above), we can proof that - without further explanations - this whole scenario is
not just unlikely, but actually impossible in this regard! 4 days at warp 4.5 - that works
out to be 0.998 ly if using the TOS scale (and even with the TNG scale it's merely 1.6
light years), i.e. closer than the closest star to Earth, Proxima Centauri, which is 4.4
ly away. A very fine example for plot drive, isn't it? ;)

Obviously it won't be easy to explain
away this major science blooper, yet there are some intriguing possibilities I would
like to introduce here. Before we examine them, however, we have to consider the
"Why?". Nothing, absolutely nothing in the story requires a journey of merely 4
days; the Klingon is physically stable, the crew must be very used to long journeys (given
that none of them has travelled faster than warp 2 before), and we the viewers are used to
Star Trek's narrative technique of cutting unnecessary screen time by showing an exterior
shot and explaining passing time via log entries of the Captain. Now there are several log
sequences over the course of the pilot which could have been used to make the same 90
minutes of real time to 4 weeks (instead of 4 days) narrative time. So what is it then?
Ignorance? A major screw-up? I thought so for a long time, but perhaps not entirely.
Because thinking about it, it's surprisingly not "Enterprise" that introduced
this problem with Qo'noS distance, and I can very well imagine that the
"Enterprise" writers relied on that earlier depiction, trying to make it more
credible by being consistent to it. I'm talking about the events of "Star Trek
VI", where the Earth and the whole Klingon Empire - Rura Pente, Kithomer and Q'onoS
- seem to be extremely close given that the USS Enterprise, and later the USS Excelsior
need days, if not less than a day, to travel from Earth to these locations. Even with the
possibilities of the 23rd century, how can a Excelsior class vessel travel from the edge
of the Alpha Quadrant (as mentioned by Captain Sulu) to Camp Khitomer on the same day?
Obviously all these locations are all very close to Earth - if not regarding distance,
then definitely regarding travel time (as we will see, these two measures are not
necessarily proportional, as the standard warp calculation would suggest).

No matter how far Qo'noS is, it's
obviously farther away from Earth than Alpha Centauri... so we can actually only discard
the four days and pretend that Archer (and the others that mentioned such a short travel
time) said something different. However, there is one very elegant explanation for this
and similar cases, with that we can - amazingly - keep the hapless four days and still
put Qo'noS at some reasonable distance to Earth, without making Enterprise faster
than Voyager and Enterprise-E combined.
This solution is based on a premise first mentioned in the noncanon fandom literature of
the 1970s and 1980s, which is also hinted on in the semi-canon ST:TNG TM. There, you can
see the warp chart and the warp / multiples of light speed coherences mentioned earlier,
however, with the additional note: "the actual values depend on interstellar
conditions, i.e. gaseous density, electrical and magnetic fields and subspace
fluctuations". This little explanation gives us a lot of possibilities to solve a lot
of inconsistencies and problems that have occurred over the years, but in this case, where
the standard explanation is just impossible, it is urgent.
So how does it work? If warp factors are, in terms of their light speed equivalents, not
absolute, but only relative figures, depending on the local properties of space and
subspace, the multiples given are only minimum / average values. To express the
difference of these "idealized figures" and the actual values reached in
different regions of the Galaxy, the fandom literature (such as "Star Trek Maps"
by Geoffrey Mandel) extended the warp formula to

v/c(w)=c3
* X

with X being the Cochrane factor which
expresses exactly the mentioned forces that boost warp and make a starship, travelling
with the same warp factor (and thus investing the same amount of energy) one time much
more faster than the other. If we take into account that the distribution of the
properties associated with the Cochrane factor in space are not necessarily equal or
random, we can hypothesize that there are certain "lanes" in space which differ
from the rest by extremely high Cochrane factors. Whatever fictitious natural phenomenon
is the reason for them (e.g. the "subspace currents" mentioned in [VOY]
Displaced), in these narrow areas of Cochrane factor bursts a starship would travel some
hundred times faster than outside, while, as an important aspect, the ship will - contrast
to wormholes and similar phenomena which will even push forward a ship at low impulse
with mentioned speeds - still need to travel at a considerably high warp speed to make the
boosting effect truly effective. As you can imagine, this way much can be explained in
terms of the "Star Trek VI" and "Broken Bow" issue, while it does not
necessarily contradict the fact that there possibly already have been pre-Enterprise
starships travelling at warp in the direction of Qo'noS without ever reaching it, given
that they only travelled with warp 2 maximum (if you multiply warp 2 and warp 4.5 with a
constant X, the proportionality factor will still remain the same).

Another point that supports the
"Cochrane factor" explanation: you have to know where these regions of Cochrane
factor bursts are in order to take advantage of them. In case of "Broken Bow"
this shows the obscure "Vulcan star charts" (what for does humanity - having
examined space for 4000 years - need star charts of the Galactic neighbourhood of a few
dozen light years?) in a whole new light. What if these star charts do not only show the
positions of stars, but also the network of temporarily or permanently stable regions of
ultra-high warp speeds, revealing the Cochrane factors in the different regions in space,
thus showing the fastest way to Qo'noS, which can be indeed travelled within 4
days, while you would need 40 days or longer to reach it if you would travel a straight
line to the Klingon homeworld? It's not illogical at all - just think of route planning
and how you will reach your destination faster using highways than using the direct way
via smaller roads, while in the latter case the distance might be actually smaller than in
the first case. In both cases, time and distance are two completely different aspects, as
the possible maximum speeds considerably differ. On planet Earth, you use your street
atlas to find out which streets you can use best to reach your goal in the shortest amount
of time; in case of interstellar travel, you will probably need similar charts to plot
your course.

Of course, with this explanation Qo'noS
might be located anywhere, yet we generally have to make a few restrictions regarding the
power of "Cochrane factor bursts". To my mind travels like the one of Kirk's
Enterprise in Star Trek V to the center of the Galaxy (26,000 ly) in mere days are still
errors. As pointed out above, you have to take into consideration: you'd probably have to
chart the whole distance of a potential lane before you could use it, thus forbidding true
exploration at incredible speeds (and, the other way round, a quick voyage
home for Voyager in the 24th century). Only on pre-explored, well-known and often used
routes (like the ones between Earth and Qo'noS, and, in the same vein, perhaps Earth and
Bajor as well; a lane which wouldn't have been been charted before the 23rd or 24th
century for obvious reasons), this advantage could be used. Otherwise, the possibilities
would be just too far reaching, and make the lanes too important to keep them credible,
given that they were never mentioned (fortunately their nature does not necessarily
associate a visual phenomenon with them, as it would be the case with wormholes or
subspace shortcuts) nor their effect shown (i.e. by constant travels of starships
across the Galaxy). However, in all cases in which we just need boost by a factor of ten or one
hundred for a anyway quite short distance, I do think this "plot device" is both
useful and feasible. However, before we come to final guesses how far the Klingon
homeworld might be away from Earth, another issue, that is raised in the course of the
mission, has to be considered, as it is directly associated with this.

"Rigel" vs. Rigel

At first glance, there namely seems to
be one problem that apparently is a much grosser violation of real word science and inter
series continuity: a star called Rigel plays an important role on the Qo'noS mission, as
the Klingon pilot stopped there on his to Earth, and the Enterprise crew make a detour (if
it is one at all) to this location as well, before they finally head for the Klingon
homeworld. The problematic part: as it is pretty well known from school astronomy, Rigel
is the Arabic name of a real star known for thousands of years; a real star that is 773 ly
away (cf. "The positions of the real stars"). Now
given what I mentioned above about Qo'noS distance and the time problem, this seemingly
stretches the whole issue to ridiculousness.

Even with the Cochrane factor explanation, it would
be a bit too much a rationalization to allow any starship, at any time, to bridge more
than 773 ly (+X ly, given that Qo'noS is not necessarily on route) within 4 days (I know
this happened in TOS, yet this was a major screw-up); and "Broken Bow" does not
support this at all anyway given that the star is merely 15 ly away from a
position Enterprise has reached from Earth within mere hours of flight. Additionally, it
seems that the writers were unaware of the true meaning of Rigel as a real star
anyway, as this is not only not mentioned, but contradicted in the dialogue. It seems
they just intended to add another TOS reference to their script. Fortunately, I might add,
because exactly this additional error makes the whole Rigel issue a non-issue, and -
unintentionally, I'm inclined to believe - solves the whole problem Rigel, as a much too
far away star whose properties (super giant with little heavy metal abundance and short
life span) would never allow life-capable planets, has posed in all Trek series it was
mentioned.
The important point is - in the respective scene, "Rigel" is mentioned together
with a few other star locations (among them Tholia) - as names directly extracted from a Klingon
database. How could the Klingons, which had no contact to Earth up to then, possibly have
the same Arabic name for the same star? Not at all, is the only answer. Obviously,
"Rigel" has to be a Klingon homophone denoting a different star than
our Rigel (I'm therefore using quotation marks for the Klingon Rigel, as it is surely
written different - even if the subtitles in a later scene show Rigel written in our way),
completely ruling out the assumption that the "Rigel" in the pilot is our real
star Rigel, and, as I pointed out, also explaining the frequent later reference to
"Rigel" in TOS, TNG and DS9 as a common, not too far planetary system, assuming
that the alien name, probably very common in the already existing interstellar community
(given that T'Pol very well knew what and where "Rigel" is), was kept by humans
as one of the few instances where Earth was influenced by outer influences and not vice
versa.
It all makes a lot more sense this way. Just to mention two major cases: the journey of
Pike and his crew back from "Rigel" to Vega (a star very close to Earth) in
order to treat the wounded in the very first TOS pilot "The Cage" - up to now we
had to believe that he travelled almost 800 light years within a few weeks and passed
Earth in order to reach another colony! And we have the "Rigellians", obviously
native to the "Rigel" system, as an important Federation species akin to the
Vulcans and Romulans (with respective planetary systems not too far away from Earth) - the
rationalization up to now had to be that the Rigellians colonized the Rigel system some
time ago, have a very resistant physiology, are an "outsider" species in the
Federation family etc.

Still, it is not necessary, nor reasonable, to make
this revision in all cases Rigel was mentioned and / or played an important role. Indeed
the Rigel problem is solved best by assuming that both "Rigels" were used in
Trek. For example, in [TOS] Mudd's Women, Kirk did explicitly mention that the planet
visited there (Rigel XII) is at the edge of the Federation, only rarely visited by
starships, and after all, his ship, running short in Dilithium supplies, was threatened to
fall out of orbit - not very credible if this Rigel was in the major system with lots of
colonies, the home world of the Rigellians etc. that was mentioned in other cases. So we
can safely assume that this "Rigel" was our Rigel. If we think about
it, this way the scientific problems are solved as well - putting apparently close, busy M
class worlds in the "Rigel" system and all others in the (our) Rigel system -
explaining how there can be so many inhabitable planets (eight up to now, mentioned in
more than a dozen episodes) in one planetary system.

Back to Qo'noS

Given that we have disclosed "Rigel" to be
an unknown planetary system 15+x light years away from Earth, Qo'noS might be anywhere between
this distance and about 50 light years as "acceptable" distance I would
have chosen as a "safe minimum" before "Broken Bow" (cf. operation range chart). As we have found out, no
matter what the actual distance is, only with daring (yet not conflicting with on screen
canon) auxialiary constructs like the "subspace lanes" (then causing Cochrane
factor increases between 1500 to 5000 percent) we will be able to explain the first voyage
of Enterprise in a reasonably scientific way anyway.

Interestingly, such a short distance
may not contradict the fact that the later series (TNG and DS9) seemingly put the Klingon
homeworld, and the whole Klingon Empire, considerably farther away, so that e.g.
reinforcements always needed a longer time (as seen in [DS9] The Way of the Warrior and
[DS9] The Sacrifice of Angels). If we remember, Star Trek VI, which ironically was the
first instance which demanded this extremely short travel time between Earth and Qo'noS,
mentioned an evacuation and relocation of the Klingons living on this planet after the
Praxis incident that allegedly made the homeworld uninhabitable within 50 years.
Therefore, the Qo'noS we're talking about in Enterprise and the TOS feature films may be a
completely different one than the planet we have seen in TNG and DS9. Even when
acknowledging the fact that much can change within 200 years, on screen comparisons of the
sky and planet color seem to support this idea, as seen in the following pictures.