EarthSky // FAQs // Space By EarthSky Jan 07, 2007

Does the sun have a proper name?

You sometimes hear the name Sol in association with our sun. That’s the Roman equivalent of the name for the Greek sun god Helios.

You’ve probably heard star names such as Polaris the North Star – or Betelgeuse in the constellation Orion. But, although it’s also a star, our sun doesn’t have a generally accepted and unique proper name.

You sometimes hear the name Sol in association with the sun. That’s the Roman equivalent of the Greek sun god Helios. But neither Sol nor Helios is an official name for the sun, according to the International Astronomical Union.

So the sun doesn’t have its own name. But it does have a symbol that’s exclusively its own. The sun’s symbol is a circle with a dot in the center – used in mathematical formulas.

In being nameless, our sun has company. There are several thousand stars visible to the eye, and only a few hundred of them have names. Astronomers use the Greek alphabet to order visible stars in each constellation, according to their brightness. To identify stars invisible to the eye, astronomers turn to star catalogs, which assign a number to each star according to its position in the sky.

Our thanks to:
Frank Bash
University of Texas at Austin

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22 Responses to Does the sun have a proper name?

  1. Rick Piltz says:

    When I was editing reports for the U.S. Global Change Research Program/Climate Change Science Program, the federal multiagency program that supports scientific research and global observing systems, we referred to the Sun and Earth, both capitalized, i.e., we treated them as proper nouns. In these U.S. Government publications, the name of the star at the center of our solar system is the Sun, and the name of our home planet is Earth. All stars are suns, but there is only one Sun.

    Rick Piltz
    Director, Climate Science Watch
    Washington, DC

  2. Rubylikeaflame says:

    This NASA page says the sun doesn’t have a real name. http://solarsystem.nasa.gov/faq/index.cfm?Category=Sun

    And it says the moon doesn’t either.

  3. Alan Dennill says:

    The sun does have a name – Helios

  4. Edmond Dantes says:

    Some people call the moon Luna

  5. if the sun has a name why dont we call it by it’s name?

    • Deborah Byrd says:

      Hi Elizabeth, the sun doesn’t have an official name.

      • Andrew Sewell says:

        Well who really gets to say whats official, I mean who gave the people at NASA the authority.

        • Deborah Byrd says:

          Hi Andrew, no one said anything about NASA, but you bring up a great point. Names for astronomical objects are made “official” by the International Astronomical Union (IAU).

          Here’ more info about that: http://www.iau.org/public/naming/

          Some have argued against the IAU’s naming policies since Pluto’s status was changed from “planet” to “dwarf planet.”

          Deborah

  6. diane says:

    those the sun has name???

  7. Dan Tomlinson says:

    Sol may not be official, but it is certainly the adapted name of our sun. A sun has planetary bodies or something in orbit around it. A star does not necessarily have planets. All suns are stars, not all stars are suns. The SOLar system, like the Andromeda System, are named after their stars…..or perhaps it’s just wishful thinking, you know, trying to make logical sense of the universe.

  8. Michelle says:

    How about we call it “Arthur”. I’ve always liked that name. Thanks for answering my question though.

  9. Matt says:

    Yeah, Dan – that’s always been my thought. You don’t commonly hear someone say – the Andromeda Solar System, or “we’re searching for other Solar Systems”. Typically, it’s “Star System”, or more specifically, Andromeda System, Sol (ar) System, Etc.
    This kinda bums me out though, cause just the other day I told my 8 year old the Sun’s real name is “Sol”. Now I’m going to have to admit I was wrong just so he doesn’t get into it with some whiz kid and get proven wrong. Lol.

  10. Susa Black says:

    From Wikipedia:

    In Germanic paganism, the Sun is personified as a goddess; Sól/Sunna.[124]
    Theories have been proposed that Sun, as Germanic goddess, may represent an extension of an earlier Proto-Indo-European deity due to Indo-European linguistic connections between Old Norse Sól, Sanskrit Surya, Gaulish Sulis, Lithuanian Saul?, and Slavic Solnitse.[124]

  11. Kurt says:

    Not sure if it counts for anything, but in many science fiction universes – where star names have practical meaning because of Mankind’s ability to travel to different star systems – the Sun’s name is given as Sol.

  12. Russ Gaskin says:

    Apparently, the recommendation from the IAU is to do initial caps on ANY type of astronomical object. It doesn’t imply that these are formal names for those objects. (“The IAU formally recommends that the initial letters of the names of individual astronomical objects should be printed as capitals (see the IAU Style Manual, Trans. Int. Astron. Union, volume 20B, 1989; Chapter 8, page S30 – PDF file); e.g., the Earth, the Sun, the Moon, etc.).

    This thread has been going for several years now and seems to involve a number of people. I think WE should decide on a name for our Sun.

    Sol and Helios are gods and “the Sol” is the same as “the Sun,” so I don’t think any of those work. It’s got to be a name that we would never precede a “the.”

    I propose the name ‘Russ,” which I’ve always liked.

  13. Mike "Thunder God Mucho-Grandias'' says:

    i was watching a Sci-Fi flick..and they i think they named their spacecraft after the Sun..they called it Solaris..?? i think?? if not..i like the sound of that..after all the Greek name..Solaris means.”like a Sun”..or was it?? latin for Sun..lol eighter way..Solarian Warlord has a nice ring to it..if i was a intergalatic warrior from the future i can hear myself introducing myself like so..{“I am the Thunder God Mucho-Grandias’ A hard-core Solarian-an intergalactic warlord from the small but mighty planet Earth!lol..and no..i do no drugs..lol

  14. Guido says:

    It’s Chad. I thought it that was common knowledge. The sun’s name is Chad.

  15. Helen says:

    Pfft, you all make my laugh. The sun’s name should obviously be Oswald.
    First off, there’s a big O, indicating the general shape of the sun. Then there’s an S for ‘solar,’ ‘sun,’ ‘star,’ or simply ‘scorching.’ Then there’s Wald, which sounds a bit like the British pronunciation of ‘world,’ doesn’t it? There you have it. A spherical scorching world – describes it perfectly.
    That’s not all! Oswald also means ‘god’ or ‘powerful’ (and so much more, like how the ‘wald’ came from ‘werald’ which means Earth. I forgot what Os means, but lets assume that it means Star so that Oswald can mean Star of the Earth :P) in Old English. There you go – you have Sol and Helios in there! And powerful… Well, the sun makes our world go round, no? *hahaha*
    Earthlings can still be called Solarians. Remember, the S. Sure, it may be a tad bit confusing for extraterrestrials, but, hey, if they’re advanced enough to travel around the universe, they should be intelligent to pick up on it relatively quickly, right?
    So, Oswald. Can’t you just imagine a song about it?
    ‘Oswald will come up tomorrow!’
    Or, ‘Oswald will arrive tomorrow!’ or an alternative, ‘Oswald will arrive in the ‘morrow!’
    And my favorite for the sheer irony, ‘Oswald will wake up tomorrow!’
    And if you don’t feel like saying Oswald, you can always go with the nicks; Ozzie, Ozzy, Oz, Wald, Waldy, and OW.
    (Haha, get it? Ow, I just got Oz-burned, or Ow just blinded me, or ‘My pal got too close. Ow vaporized his body.’
    But if no one goes with Oswald, I would like Sol as a name just fine.
    But Ow is better.

  16. Stu says:

    The sun in Ireland is known to be called mc’cormick

  17. Star Watcher says:

    I think they should just go with the name SOL or SOLARIS they both sound good, and besides other civilizations living out there have a name for it, just think of it like this; someone from the Alpha Centari system looks at our sun and gives it a name b/c to them our sun is just another star out there. Just as we look out and and see other stars and name them to have a point of reference when looking into outer space.

    • Star Watcher says:

      As a side note to all forget what the International Astronomical Union says, throughout history different cultures call heavenly bodies different names…….. so in essence who cares who says what is official and what is not……………….call it what you want and dare to be different, it doesn’t change the fact of what it is; our closest star and the most important star to the people of this blue and white marble we call Earth.

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