<p>Z - Zodiacal light</p>

<p>T - why not T-dwarf ?</p>

<p>K - err K-dwarf or K-giant if you want variety.</p>

<p>I think your F is a bit lame.  You could go for FU Ori object.</p>

CC BY-SA 3.0
2017-11-16T19:53:26.417Z
The problem is, that Zodiacal Light isn't any Astronomical object. Btw, thanks for your answer! (+1)
Jaideep Khare
CC BY-SA 3.0
2017-11-16T21:10:44.763Z
Call it Zodiacal Dust then. @JaideepKhare
ProfRob
CC BY-SA 3.0
2017-11-16T18:56:58.097Z
2017-11-16T18:56:58.097Z
ProfRob
<p>for <strong>K</strong> we have <a href="https://en.wikipedia.org/wiki/Kilonova" rel="nofollow noreferrer">Kilonova</a> - a "transient astronomical event that occurs in a compact binary system when two neutron stars or a neutron star and a black hole merge into each other". On 17 August 2017, a <a href="https://en.wikipedia.org/wiki/GW170817" rel="nofollow noreferrer">gravitational wave detection</a> coinciding with a kilonova made a big news as the first such observation and an important milestone in science.</p>

<p>My suggestions for <strong>T</strong> are less good. <a href="https://en.wikipedia.org/wiki/TAU_(spacecraft)" rel="nofollow noreferrer">TAU</a> was a space probe proposed in 1987. Not exactly an astronomical body, though, and rather unknown. If you don't mind constellations, <a href="https://en.wikipedia.org/wiki/Taurus_(constellation)" rel="nofollow noreferrer">Taurus</a> would be my go-to suggestion.</p>

<p>As for  <strong>Z</strong>, my best suggestion would be <a href="https://en.wikipedia.org/wiki/Alnitak" rel="nofollow noreferrer">Zeta Orionis</a> - a star system in the Orion's belt. Its primary star is the brightest Class O star in the night sky. Also known as Alnitak. </p>

CC BY-SA 3.0
2017-11-16T22:35:43.913Z
He seems to be looking for types of objects, not the names of specific objects. Otherwise there are lots of stars with names beginning with Zeta.
Barmar
CC BY-SA 3.0
2017-11-16T22:37:43.410Z
I mostly posted for the kilonovae. Also this is why I said my T and Z suggestions weren't that great.
John Dvorak
CC BY-SA 3.0
2017-11-16T18:14:45.630Z
2017-11-16T18:14:45.630Z
John Dvorak
<p>Seems a little contrived, essentially you just have to dig deep enough to find a specific enough category that matches the letter. But here you go :</p>

<p>K - KBO (Kuiper Belt <em>Object</em>) , if you still don't like that you could use</p>

<p>K - Kreutz Sungrazer (A type of comet, <a href="https://en.wikipedia.org/wiki/Kreutz_sungrazer" rel="noreferrer">https://en.wikipedia.org/wiki/Kreutz_sungrazer</a>)</p>

<p>T - T-Tauri Star (A type of variable star, <a href="https://en.wikipedia.org/wiki/T_Tauri_star" rel="noreferrer">https://en.wikipedia.org/wiki/T_Tauri_star</a>)</p>

<p>Z - Z Camelopardalis star (<a href="https://en.wikipedia.org/wiki/Z_Camelopardalis_star" rel="noreferrer">https://en.wikipedia.org/wiki/Z_Camelopardalis_star</a> redirects to Dwarf Nova, scroll down)</p>

CC BY-SA 3.0
2017-11-17T00:42:52.860Z
`+1` Excellent!
uhoh
CC BY-SA 3.0
2017-11-16T14:49:50.047Z
2017-11-16T14:49:50.047Z
Michael Watts
<p>Today, I thought to make a list of Astronomical objects, A to Z. </p>

<p>It goes as follows :</p>

<ul>
<li><strong>A</strong> - Asteroid</li>
<li><strong>B</strong> - Black Hole</li>
<li><strong>C</strong> - Comet</li>
<li><strong>D</strong> - Dwarf Planet</li>
<li><strong>E</strong> - Elliptical Galaxy</li>
<li><strong>F</strong> - Falling Star</li>
<li><strong>G</strong> - Globular Cluster</li>
<li><strong>H</strong> - Hypergiants (Stars)</li>
<li><strong>I</strong> - Interstellar Medium</li>
<li><strong>J</strong> - Jets (Astrophysical)</li>
<li><strong>K</strong> -  $\color{red} ?$</li>
<li><strong>L</strong> - Lenticular Galaxy</li>
<li><strong>M</strong> - Meteor</li>
<li><strong>N</strong> - Nebula</li>
<li><strong>O</strong> - Open Cluster</li>
<li><strong>P</strong> - Pulsar</li>
<li><strong>Q</strong> - Quasar</li>
<li><strong>R</strong> - Rogue Planets</li>
<li><strong>S</strong> - Satellites</li>
<li><strong>T</strong> -   $\color{red} ?$</li>
<li><strong>U</strong> - Universe</li>
<li><strong>V</strong> - Variable Star</li>
<li><strong>W</strong> - White Dwarf</li>
<li><strong>X</strong> - X-ray Star</li>
<li><strong>Y</strong> - Yellow dwarf star</li>
<li><strong>Z</strong> -    $\color{red} ?$</li>
</ul>

<p>But I couldn't think of something well-known from the letters <strong>K, T</strong> and <strong>Z</strong>. </p>

<p>I tried to avoid using name of something specific object for ex. <strong>K</strong> - Kuiper Belt.</p>

<p>Can you please help me in completing this list?</p>

<p>Thanks!</p>

CC BY-SA 3.0
2017-11-16T14:46:07.050Z
I'm voting to close this question as off-topic because it's not really a question about the science of astronomy.
HDE 226868
CC BY-SA 3.0
2017-11-16T14:47:36.897Z
@HDE226868: This seems like an outreach effort. I think we can support that.
AtmosphericPrisonEscape
CC BY-SA 3.0
2017-11-16T14:58:00.250Z
@AtmosphericPrisonEscape I'm worried about the list aspect of this question. That said, the OP does have some pretty hard letters to fill. My suggestion for K is "kick" as in [pulsar kick or black hole kick](https://en.wikipedia.org/wiki/Pulsar_kick).
called2voyage
CC BY-SA 3.0
2017-11-16T16:47:23.783Z
Check out this [A to Z of astronomy](http://www.naasbeginners.co.uk/atoz.htm) Jaideep.
John Duffield
CC BY-SA 3.0
2017-11-16T23:51:37.807Z
completely coincidentally, there is the K-T boundary, thought to be caused by an astronomical event of sorts...
Michael
CC BY-SA 3.0
2017-11-18T03:27:51.127Z
@AtmosphericPrisonEscape It's also, as called2voyage said, kind of broad.
HDE 226868
<fundamental-astronomy>
Astronomical ABCD...!
Jaideep Khare
# Astronomical ABCD...!

(Asked by: username_0 on 2017-11-16)

Today, I thought to make a list of Astronomical objects, A to Z.

It goes as follows :

* **A** - Asteroid
* **B** - Black Hole
* **C** - Comet
* **D** - Dwarf Planet
* **E** - Elliptical Galaxy
* **F** - Falling Star
* **G** - Globular Cluster
* **H** - Hypergiants (Stars)
* **I** - Interstellar Medium
* **J** - Jets (Astrophysical)
* **K** - $\color{red} ?$
* **L** - Lenticular Galaxy
* **M** - Meteor
* **N** - Nebula
* **O** - Open Cluster
* **P** - Pulsar
* **Q** - Quasar
* **R** - Rogue Planets
* **S** - Satellites
* **T** - $\color{red} ?$
* **U** - Universe
* **V** - Variable Star
* **W** - White Dwarf
* **X** - X-ray Star
* **Y** - Yellow dwarf star
* **Z** - $\color{red} ?$

But I couldn't think of something well-known from the letters **K, T** and **Z**.

I tried to avoid using name of something specific object for ex. **K** - Kuiper Belt.

Can you please help me in completing this list?

Thanks!

**Tags:** fundamental-astronomy
> **Comments:**
> **username_1**: I'm voting to close this question as off-topic because it's not really a question about the science of astronomy.  
> **username_2**: @HDE226868: This seems like an outreach effort. I think we can support that.  
> **username_3**: @AtmosphericPrisonEscape I'm worried about the list aspect of this question. That said, the OP does have some pretty hard letters to fill. My suggestion for K is "kick" as in [pulsar kick or black hole kick](https://en.wikipedia.org/wiki/Pulsar_kick).  
> **username_4**: Check out this [A to Z of astronomy](http://www.naasbeginners.co.uk/atoz.htm) Jaideep.  
> **username_5**: completely coincidentally, there is the K-T boundary, thought to be caused by an astronomical event of sorts...  
> **username_1**: @AtmosphericPrisonEscape It's also, as called2voyage said, kind of broad.  

---

## 3 answers

### Answer by username_9 on 2017-11-16. Score: 8 | Accepted answer

Seems a little contrived, essentially you just have to dig deep enough to find a specific enough category that matches the letter. But here you go :

K - KBO (Kuiper Belt *Object*) , if you still don't like that you could use

K - Kreutz Sungrazer (A type of comet, <https://en.wikipedia.org/wiki/Kreutz_sungrazer>)

T - T-Tauri Star (A type of variable star, <https://en.wikipedia.org/wiki/T_Tauri_star>)

Z - Z Camelopardalis star (<https://en.wikipedia.org/wiki/Z_Camelopardalis_star> redirects to Dwarf Nova, scroll down)

> **Comments:**
> **username_10**: `+1` Excellent!  

---

### Answer by username_6 on 2017-11-16. Score: 4

Z - Zodiacal light

T - why not T-dwarf ?

K - err K-dwarf or K-giant if you want variety.

I think your F is a bit lame. You could go for FU Ori object.

> **Comments:**
> **username_0**: The problem is, that Zodiacal Light isn't any Astronomical object. Btw, thanks for your answer! (+1)  
> **username_6**: Call it Zodiacal Dust then. @JaideepKhare  

---

### Answer by username_7 on 2017-11-16. Score: 4

for **K** we have [Kilonova](https://en.wikipedia.org/wiki/Kilonova) - a "transient astronomical event that occurs in a compact binary system when two neutron stars or a neutron star and a black hole merge into each other". On 17 August 2017, a [gravitational wave detection](https://en.wikipedia.org/wiki/GW170817) coinciding with a kilonova made a big news as the first such observation and an important milestone in science.

My suggestions for **T** are less good. [TAU](https://en.wikipedia.org/wiki/TAU_(spacecraft)) was a space probe proposed in 1987. Not exactly an astronomical body, though, and rather unknown. If you don't mind constellations, [Taurus](https://en.wikipedia.org/wiki/Taurus_(constellation)) would be my go-to suggestion.

As for **Z**, my best suggestion would be [Zeta Orionis](https://en.wikipedia.org/wiki/Alnitak) - a star system in the Orion's belt. Its primary star is the brightest Class O star in the night sky. Also known as Alnitak.

> **Comments:**
> **username_8**: He seems to be looking for types of objects, not the names of specific objects. Otherwise there are lots of stars with names beginning with Zeta.  
> **username_7**: I mostly posted for the kilonovae. Also this is why I said my T and Z suggestions weren't that great.  

---

