Questions tagged [naming]

Questions regarding the process of assigning an identifying set of characters to an astronomical object.

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55
votes
3answers
8k views

Where did TRAPPIST-1a go?

According to the NASA announcement and the Wikipedia article on TRAPPIST-1, the planets around the TRAPPIST-1 star are named TRAPPIST-1 b through h. What happened to "TRAPPIST-1 a"?
17
votes
1answer
296 views

What is the naming convention for newly discovered objects?

Often, a newly discovered star is identified by a seemingly random string of letters and numbers. I'm sure that there is some order to it, though. What is the naming convention for newly discovered ...
15
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1answer
2k views

Is there a name for a planet and its moons/satellites?

I'm wondering if there's a name that encapsulates the concept of a planet and the objects that orbit in its gravity. There's a solar system that encapsulates a star and its multiple planets and other ...
14
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3answers
34k views

What is the name of our Solar System?

what is our Solar System called rather than "the Solar System"? I've found "Sol System" and "Monmatia", too, but is there more to it?
12
votes
2answers
95 views

Official registry of lunar placenames?

What's the definitive source for names of geographic objects on the moon? Reason: As a computer graphics project I've rendered a scene based on LROC terrain data. I want to know what I'm looking at. ...
12
votes
1answer
343 views

Why was this asteroid (4864 Nimoy) chosen to be named after Leonard Nimoy?

The asteroid 4864 Nimoy was recently named after Leonard Nimoy. It was discovered on September 2, 1988 so it went nearly 27 years without a name. Why was this asteroid chosen to be named after him? ...
9
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2answers
319 views

How were the designations of "North" and "South" applied to the hemispheres of Mars?

How was it decided which hemisphere was North and which hemisphere was South on Mars? Clearly, the designations "North" and "South" apply only to the hemispheres which contain the axis of rotation at ...
8
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3answers
868 views

How do scientists name space objects?

I am curious that there are lots of celestial objects (planets, comets, stars, galaxies, etc.) in space. How do we name them?
7
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2answers
3k views

Why is Sagittarius A* called so?

At the center of the Milky Way, we have a supermassive black hole. It's name is "Sagittarius A*". I was wondering that why is it called so? I mean, why "A*" why not just "A". Is there a naming system ...
7
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1answer
2k views

What does designation VY, NML, UU in star names stand for?

I've read the a IAU page on the subject but i am no closer to understanding how this works. Also did search the already asked question, but didn't see anything on the subject. What does bolded item ...
6
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2answers
349 views

Does IC 1101 have any name?

IC 1101 is the single largest galaxy that has ever been found in the observable universe, but does IC 1101 have any other name or at least a nick-name, perhaps something more soothing to the ear and ...
6
votes
1answer
246 views

Why was Neptune rather than Uranus chosen as an archetype?

The largest exoplanets are typically called Jupiter-like planets, or hot/cold Jupiters. Since Jupiter is the largest most massive planet in our Solar system, it makes sense that it would be chosen as ...
6
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3answers
804 views

Who gets to name Planet Nine if it is confirmed?

According to Wikipedia, "On 20 January 2016, researchers Konstantin Batygin and Michael E. Brown at Caltech announced calculation-based evidence of a massive ninth planet in the Solar System." If ...
6
votes
1answer
328 views

What do the acronyms in "AT 2017 gfo" mean?

About 11 hours after the detection of GW170817 by Ligo/Virgo and the quickly succeeding detected GRB170817, a transient afterglow in the optical-nIR frequency appeared which showed many signs of r-...
5
votes
1answer
495 views

Why were the Magellanic Clouds named that way?

From the Wikipedia article, the Large and Small Magellanic Clouds were observed prior to Magellan's expedition, and the name only stuck long after Magellan's expedition (at first, they were called ...
5
votes
1answer
972 views

Is there a database of all known star names/identifiers?

I am looking for a list of all known identifiers used for stars. I'm not sure on the terminology. While I do want the "proper names", I also want whatever identifier is used for each star detected, ...
4
votes
2answers
1k views

Why were two galaxies named "The Sagittarius Galaxy"? Is this common?

Phys.org's says: The formation of the Sun, the Solar System and the subsequent emergence of life on Earth may be a consequence of a collision between our galaxy, the Milky Way, and a smaller ...
4
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3answers
689 views

Why nobody cares to give the nearest stars better names?

The star occupying 6th place on Wikipedia's list of nearest stars and brown dwarfs can be called either Lalande 21185, BD+36 2147, Gliese 411 or HD 95735. That seems to me like a fine, quadruple ...
4
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1answer
194 views

How did Biden become VP? (naming of 2012 VP113)

The Carnegie Science article Solar System's Edge Redefined describes the discovery of the object 2012 VP113. Wikipedia's article 2012 VP113 says: Nickname: 2012 VP113 was abbreviated "VP" ...
4
votes
1answer
393 views

Who named Gomez's Hamburger as "Gomez's Hamburger"? (IRAS 18059-3211)

Science Alert's Make Your Day Better With These 8 Cool Space Things That Have Totally Ridiculous Names says: Whoever named Gomez's Hamburger sure must have been hungry, because it doesn't really look ...
4
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1answer
127 views

Astronomical Term *Mezzocielo*

What is the name of the point of intersection of the great circle passing through the celestial north pole P and the Zenith Z, with the celestial equator? (Point T in the figure) In Italian this point ...
3
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2answers
543 views

Ross 128 (What does the number mean?)

I see that there are a number of stars that have a number at the end of them. Ross 128 is an example. What does this number mean?
3
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2answers
145 views

How to name planets outside our galaxy?

Recently, planets outside our galaxy have been discovered. How would be the convention to naming these planets? As far as I know, it seems that there is no standard for naming exoplanets even in our ...
3
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3answers
364 views

What's the name of outside the cosmic horizon?

The word we use to refer to what's inside the cosmic horizon is the 'universe', so what would you call the empty space outside of the horizon?
3
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3answers
312 views

How many asteroids are named after musicians? Is there a searchable list for this?

Spot checking Wikipedia, Google and JPL's Horizions I found several musicians right away, including Lou Reed, Elvis, Freddy Mercury, and David Bowie. Is there a way to find all of the asteroids that ...
3
votes
1answer
104 views

Why is there no Proxima 'a' planet? I'm confused about the naming convention [duplicate]

Why is there no exoplanet around Proxima Centauri designated with the letter 'a'? There is, famously, a 'b' and now a newly confirmed 'c'.... I have read that exoplanets around a star are designated ...
3
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1answer
355 views

Why stars are named Gliese?

There are exoplanets called Gliese 581c, Gliese 581d etc. I assume their star is Gliese 581. So where does this Gliese come from?
3
votes
2answers
176 views

When will 2002 MS4 be named?

The trans-Neptunian planetoid 2002 MS4 is currently the largest known unnamed Sun-orbiting object. Is there any standard schedule on when this and similar objects might be named? Usually the ...
3
votes
1answer
126 views

What name was voted for Tau Boötis b by the Name Exoworlds Project?

In 2015, the exoplanet Tau Boötis b was included in the Name Exoworlds Project, a project where various international astronomy organizations would propose names for a selection of known exoplanets ...
3
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0answers
55 views

Is there a timeline for the naming of the TRAPPIST-1 worlds?

For the moment, the TRAPPIST-1 worlds are just known by their official designations, like "TRAPPIST-1a" etc. NASA made a casual tweet asking people what they would name the worlds, and there has been ...
2
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1answer
160 views

What does "TON" in TON 618 stand for?

I don't think TON 618 is a random name, but rather a composition of category name and a number. But when I tried to google it, any article about TON 618 did not contain anything about its name origin ...
2
votes
1answer
96 views

How official is TNO 486958, 2014 MU69's new name Arrokoth?

The Trans-Neptunian object 486958 or 2014 MU69 has had several designations and nicknames. According to Phys.org's NASA renames faraway ice world 'Arrokoth' after backlash Ultima Thule, the ...
2
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1answer
335 views

Whats the name of this eye-shaped galaxy?

I would like to know the name of this eye-shaped galaxy: Strange eye-shaped galaxy has black-hole iris, Betsy Mason, 23.07.2009, Wired.com:
2
votes
1answer
90 views

The star that died and became the Crab Nebula and Crab Pulsar?

The supernova of this star was witnessed about 1 thousand years ago, and the star's remains are the Crab Nebula and Crab Pulsar. What is this no longer existent star called? How massive was this star? ...
2
votes
2answers
110 views

What does the word "compact" mean in astronomy/astrophysics?

I have seen countless times the adjective "compact" in astronomy, e.g. compact stars, compact binaries, etc. I would like to know, what exactly is this supposed to mean? From this source, I am led to ...
2
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2answers
367 views

Stellar Mapping and Coordinates [closed]

Why are the Galactic Coordinates not aligned so that the Axes go through the Long Bar Y-axis aligned to it's longer side, positive with Sol, and the X-axis align to the center of the short length with ...
2
votes
2answers
159 views

Which stars have been named after astronomers?

Most apparent stars have ancient names. But some of the newer (since 200 or so years) discoveries have been given the name of some prominent astronomer. Kapteyn's star is one example, and there are ...
2
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0answers
78 views

Why was the diaeresis removed from Pasiphae?

The Gazetteer of Planetary Nomenclature notes that the spelling of Jupiter's moon Pasiphae was changed from Pasiphaë in July 2009, i.e. they removed the diaeresis. I've been unable to track down the ...
1
vote
1answer
423 views

Is there a relation with the noun planet and to be in a plane?

This morning I was in the shower and it struck me that the word planet might be related to the fact that the PLANEts orbit the sun in a PLANE. Did this naming somewhat happen by accident or was it ...
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2answers
90 views

Any stellar entity named A1?

Is there a spatial entity (moon, planet, star, system, galaxy, cluster,..) that is identified with "A1" (or A{first_term})?
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2answers
63 views

What is the naming convention for temporary moons?

Is there a naming convention for temporary moons? Or do they follow the naming conventions of other small bodies? In the case of 2006 RH$_{120}$, 2015 HP$_{116}$, 2020 CD$_3$ and 2020 SO, the first ...
1
vote
1answer
157 views

Is having a surname which begins with the letter “A” a big advantage for a researcher in astronomy/astrophysics? Is changing our surname a good idea?

Is having a surname which begins with the letter “A” a big advantage for a researcher in astronomy/astrophysics? If I have a surname which begins with the letter “M”, and I haven’t published any ...
1
vote
1answer
257 views

Why are Uranus' satellites named after characters in Shakespeare?

Oberon, Titania, Ophelia, Puck, Miranda... Uranus' satellites are named for characters in the works of Shakespeare and Pope. Yet the names of Jupiter and Saturn's moon come from the Roman and Greek ...
1
vote
1answer
94 views

If a black hole is spinning, does its singularity have a new name and what is the name? [duplicate]

Think of a spinning black hole. (Kerr black hole) Every black hole has a point of infinite density, called a singularity. When a singularity is spinning, does it have a different name? But when a ...
1
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2answers
74 views

Naming convention for multiple star systems

Okay, so I've seen different notations for the stars in β Capricorni. Some sources state that the stars are Aa, Ab1 and Ab2, Ba, and Bb, while others say that they are Aa, Aba and Abb, Ba, and Bb. So, ...
1
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1answer
172 views

What is the LSST now? Where does LSST end and Vera C. Rubin Observatory begin?

Space.com's It's Official: Vera Rubin Observatory Named to Honor Dark Matter Scientist says: "We're here today to focus on the major renaming of the facility after a pioneering astronomer, that ...
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0answers
26 views

Who gave the Pelican Nebula its name?

IC 5070 is a nebula in Cygnus that is also sometimes called the Pelican Nebula. Who gave it this name?
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0answers
56 views

Are sunspots named or individually tracked?

This is a follow-up question to How are the solar flares from May 23, 2021 extraordinary? which is about news of spaceweather.org. In the present question, I am curious solely about sun-spots and why ...
1
vote
1answer
370 views

Why does exoplanets' naming start from "b" and not from "a"? [duplicate]

An exoplanet named after its host star receives the suffix letter "b" if it was the first planet discovered to orbit that star, or "c" if it was the second, or "d" if it was the third, and so on. Why ...
0
votes
1answer
171 views

Why was Uranus named what it was? [duplicate]

Why was Uranus named what it was, and who came up with the name?