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Astronomical Symbols

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Reedstilt

New Member
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I'm working on a little project and I find myself stumped on a particular issue. Does anyone know if there are astronomical symbols (at this point, I'd take astrological symbols too, or something equivalent) for any of the following: novae, aurora, or nebulae? Thanks for the help.
 
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Reedstilt said:
I'm working on a little project and I find myself stumped on a particular issue. Does anyone know if there are astronomical symbols (at this point, I'd take astrological symbols too, or something equivalent) for any of the following: novae, aurora, or nebulae? Thanks for the help.
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As far as I know, auroras do not have a symbol because they are not fixated in the sky.
Regular novae do not have symbols either, but supernovae remnants do, if the remnant is prominent enough, so I suppose that a prominent nova remnant would get the same treatment*. In that case, the supernova remnant is given the same symbol as nebulae, star clusters**, planetary nebulae, and other deep sky objects: a hollowed circle.
Usually these are Messier objects, for example, Sagittarius is filled with them: http://upload.wikimedia.org/wikipedia/commons/b/b1/Sagittarius_constellation_map.svg

*In reality, normal novae remnants don't last very long, and are less massive than planetary nebulae, and as a result usually aren't indicated on star maps.
**I've seen open star clusters given a dashed circle rather than the continuous circle given to globular clusters and other DSO's.
 
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I eventually found an aurora symbol for meteorological charts. Thanks for the help on the others.
 
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