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OK, I'm sick of clicking on a link about extrasolar planets only to find out that the star's name is "HDE394-8110048-14818943108." I can't memorise that sequence of random numbers, so I'll never know if they're referring to the same star I was thinking about 2 months ago.
Can't we come up with a better naming system for stars? I understand that there's so many (billions) of stars in our galaxy that we can't even begin to give them folklore names etc. Maybe we could give them names that refer to their spectral type? Like KM4-42 or something. That would be a hell of alot easier to remember. with regards
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Would there even be enough words in the English language?
with regards
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Sadly it's just not realistic to give proper names to every star that's discovered or catalogued, there are far too many.
I have to say that I can't ever recall seeing a star with a name quite as long as HDE394-8110048-14818943108. Most are named by a catalogue identifier, usually 2 or more letters, followed by either a catalogue number (eg LHS 375) or the stars' coordinates (eg PG 0918 -0023). These make it easy for the star to be identified and, more importantly, looked up in a catalogue. |
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with regards
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The letters refer to the catalogue they are described in; most nearby stars are described in several catalogues, which makes cross-referencing them tricky. Some of the most distant stars with known planets have OGLE catalogue numbers, as they were discovered by the Optical Gravitational Lensing Experiment which examined several distant stars. Others are pulsar planets, detected by irregularities in the rapid emissions of pulsar; these have the designation PSR.
All the other stars with planets have several catalog names; the late John Whatmough of the Extrasolar Visions website prefered to use the HD (Henry Draper) catalog numbers for stars without Bayer designations. That catalogue is useful for reasonably nearby stars, but doesn't include many of the smallest dwarfs. Only two extrasolar planets AFAIK have generally accepted nicknames, Bellerophon (51 Pegasi b) and Osiris (HD 209458 b) but I expect this will change over time.
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The problem with naming just too many stars. Naming each one with an individual name wont' work. Maybe just the important ones for their uniqueness??
But having such a catalog systems with such long names, HDE394-......, is pretty hard to remember them. Even I think for astronomers themselves. Maybe a new catalog system is in need of?, as many other things need to be renewed.
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The GAIA catalogue is worth looking forward to; but as it will map a billion stars or so, it is inevitable that the numerical component will have up to ten digits. (unless they do it in hexadecimal or something).
There are just an awful lot of stars up there.
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None official. Grant Hutchison |
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That would be the number of different 26-symbol words made from 8 symbols. The number of 8-symbol words made from 26 symbols would be 26^8. Google Calculator says 208 827 064 576.
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0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 ... |
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All words, phrases, definitions and theories provided in the above post are, unless otherwise stated, the property of Champion Munch © 2005. Sign up to sue the Sun |
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So... we're talking about randomly assigning letters in order to generate names? So instead of JMASS 1265876-5567456 whatever, you would have the much more handy "Tyrtgfhwoeudhnbslioeurlkjdfuy", with possibly a few non-English characters thrown in for good measure? **chuckles** I don't think so.
Typically what I do when referring to stars is to use an order of progression based on my own preferences. For instance, if the star has a proper name, such as Alpha Centauri, I'll use that. If not, then I'll go to the Flamsteed number, like 47 Ursae Majoris. If it lacks that, I will use any other combination that includes the constellation name, such as V167 Moncerotis. If not that, then I start using the Gliese catalogue numbers. After that, the Henry Draper numbers. Then the HR numbers, then the HIP numbers.... After that point, things get messy. But I try to avoid the DM numbers as much as I can. but, as I said, that's personal preference, and I doubt that it reflects at all any professional practices. ...John...
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Lots of people have replied to the idea of creating new names, but what most astronomers do is make use of cross reference tools starting with whatever designation they have. The best source I know is SIMBAD http://simbad.u-strasbg.fr/Simbad where you can do searches based on just about anything including an identifier. For example, a star I have worked on a bit years ago I still remember as HD 21242 ... entering that in SIMBAD results in the page which can be found at http://tinyurl.com/dmpqw where more than 40 other designations for this RS CVn variable are listed. |
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here is an image I've just made of it http://img66.imageshack.us/img66/5295/goldilocks3qc.jpg looks inviting, but the atmosphere is mostly hydrogen I believe
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I understand the point that's being made, but if all stars were listed in a single systematic way it would actually make the job of the professional astronomer harder. This is because it would make it more difficult to find stars which have the same or similar properties. Most professional astronomers will want to look up stars of a particular type, and will know which catalogue to look in. Furthermore they would probably recognize the catalogue identifier of any object they were interested in, or conversely, if they didn't recognize the identifier then the star probably isn't in their field of research. Having many different catalogues with different identifiers reduces the number of stars that have to be searched through in order to find the desired ones.
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Yeah it does, but how about stars with long numeric names after 2/3 letters in front. Ex. HDE394-8110048-14818943108
Its hard to remember the catalog name.
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"Any sufficiently advanced technology is indistinguishable from magic" -Arthur C. Clarke |