<p>Use <strong>Stellarium</strong>. You can set your location and date as needed and simulate all the conditions (ignoring weather...) :)</p>

<p><a href="http://www.stellarium.org/" rel="nofollow">http://www.stellarium.org/</a></p>

CC BY-SA 4.0
2020-03-12T15:29:31.963Z
And it's free. Also, if you are some developer, you can change the source code of the program.
User123
CC BY-SA 3.0
2014-09-11T06:28:10.713Z
2014-09-11T06:28:10.713Z
Joan.bdm
<p>There is a very nice web-based utility called <a href="http://catserver.ing.iac.es/staralt/index.php" rel="nofollow">Staralt</a> that I frequently use before observing runs.</p>

<p>This has lots of observatories pre-programmed or you can put in your own latitude and longitude AND altitude (can you do that in Stellarium?).</p>

<p>To quote the website - "you can plot altitude against time for a particular night (Staralt), or plot the path of your objects across the sky for a particular night (Startrack), or plot how altitude changes over a year (Starobs), or get a table with the best observing date for each object (Starmult).".</p>

<p>You can also do handy thing like produce plots, charts and tables or show where the moon is with respect to your targets.</p>

CC BY-SA 3.0
2014-10-04T14:27:41.773Z
2014-10-04T14:27:41.773Z
ProfRob
<p>I want to make some observations with a telescope in Hawaii on Mauna Kea but I am living somewhere else (not Hawaii) and I want to plan a night's viewing on the Hawaiian telescope. How do I find the RA range of the night? In other words; how do I find the RA range of the first object observable to the latest object observable for a particular time (of year) for a specific location (in this case Hawaii)?</p>

<telescope><observational-astronomy><coordinate><ascension>
How do I find the RA of sunset and sunrise in a specific location?
user2396
# How do I find the RA of sunset and sunrise in a specific location?

(Asked by: username_0 on 2014-09-11)

I want to make some observations with a telescope in Hawaii on Mauna Kea but I am living somewhere else (not Hawaii) and I want to plan a night's viewing on the Hawaiian telescope. How do I find the RA range of the night? In other words; how do I find the RA range of the first object observable to the latest object observable for a particular time (of year) for a specific location (in this case Hawaii)?

**Tags:** telescope, observational-astronomy, coordinate, ascension

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## 2 answers

### Answer by username_1 on 2014-09-11. Score: 1

Use **Stellarium**. You can set your location and date as needed and simulate all the conditions (ignoring weather...) :)

<http://www.stellarium.org/>

> **Comments:**
> **username_2**: And it's free. Also, if you are some developer, you can change the source code of the program.  

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### Answer by username_3 on 2014-10-04. Score: 0

There is a very nice web-based utility called [Staralt](http://catserver.ing.iac.es/staralt/index.php) that I frequently use before observing runs.

This has lots of observatories pre-programmed or you can put in your own latitude and longitude AND altitude (can you do that in Stellarium?).

To quote the website - "you can plot altitude against time for a particular night (Staralt), or plot the path of your objects across the sky for a particular night (Startrack), or plot how altitude changes over a year (Starobs), or get a table with the best observing date for each object (Starmult).".

You can also do handy thing like produce plots, charts and tables or show where the moon is with respect to your targets.


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