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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!

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    $\begingroup$ I'm voting to close this question as off-topic because it's not really a question about the science of astronomy. $\endgroup$ – HDE 226868 Nov 16 '17 at 14:46
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    $\begingroup$ @HDE226868: This seems like an outreach effort. I think we can support that. $\endgroup$ – AtmosphericPrisonEscape Nov 16 '17 at 14:47
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    $\begingroup$ @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. $\endgroup$ – called2voyage Nov 16 '17 at 14:58
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    $\begingroup$ Check out this A to Z of astronomy Jaideep. $\endgroup$ – John Duffield Nov 16 '17 at 16:47
  • $\begingroup$ completely coincidentally, there is the K-T boundary, thought to be caused by an astronomical event of sorts... $\endgroup$ – Michael Nov 16 '17 at 23:51
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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)

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  • $\begingroup$ +1 Excellent! $\endgroup$ – uhoh Nov 17 '17 at 0:42
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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.

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    $\begingroup$ 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. $\endgroup$ – Barmar Nov 16 '17 at 22:35
  • $\begingroup$ I mostly posted for the kilonovae. Also this is why I said my T and Z suggestions weren't that great. $\endgroup$ – John Dvorak Nov 16 '17 at 22:37
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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.

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

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