Astronomical ABCD...!

Question

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!

I'm voting to close this question as off-topic because it's not really a question about the science of astronomy. — HDE 226868, Nov 16 '17 at 14:46
@HDE226868: This seems like an outreach effort. I think we can support that. — AtmosphericPrisonEscape, Nov 16 '17 at 14:47
@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. — called2voyage, Nov 16 '17 at 14:58
completely coincidentally, there is the K-T boundary, thought to be caused by an astronomical event of sorts... — Michael, Nov 16 '17 at 23:51
@AtmosphericPrisonEscape It's also, as called2voyage said, kind of broad. — HDE 226868, Nov 18 '17 at 03:27

score 8 · Accepted Answer · answered Nov 16 '17 at 14:49

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)

score 4 · Answer 2 · answered Nov 16 '17 at 18:14

for K we have 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 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 was a space probe proposed in 1987. Not exactly an astronomical body, though, and rather unknown. If you don't mind constellations, Taurus would be my go-to suggestion.

As for Z, my best suggestion would be Zeta Orionis - 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.

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, Nov 16 '17 at 22:35
I mostly posted for the kilonovae. Also this is why I said my T and Z suggestions weren't that great. — John Dvorak, Nov 16 '17 at 22:37

score 4 · Answer 3 · answered Nov 16 '17 at 18:56

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.

answered Nov 16 '17 at 18:56

ProfRob

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The problem is, that Zodiacal Light isn't any Astronomical object. Btw, thanks for your answer! (+1) – Jaideep Khare Nov 16 '17 at 19:53
Call it Zodiacal Dust then. @JaideepKhare – ProfRob Nov 16 '17 at 21:10

Astronomical ABCD...!

3 Answers3