Author Topic: The Nebulae Collection (formed from many threads)  (Read 225220 times)

serpens

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Re: The Nebulae Collection (formed from many threads)
« Reply #30 on: August 18, 2007, 12:00:04 pm »
I'm learning so much here. Thanks serpens.  BTW, have you seen over at the hubble site, the 'supernova' that's frozen (~ -273K). finite energy, massive expansion = cooling (just like a fridge really!) very cool, ahem!
Which one specifically? Could you give a link?

mitch.wheat

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Re: The Nebulae Collection (formed from many threads)
« Reply #31 on: August 18, 2007, 12:06:06 pm »
I got it wrong again! It's a Planetary Nebula!  http://www.spacetelescope.org/images/html/heic0301a.html

serpens

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Re: The Nebulae Collection (formed from many threads)
« Reply #32 on: August 18, 2007, 12:08:08 pm »
Yes, I've seen this before - a beautiful bipolar nebula. It's a shame that so few can be found in SDSS for some reason...

Cosmic Grenade

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Re: The Nebulae Collection (formed from many threads)
« Reply #33 on: August 18, 2007, 12:20:08 pm »
wow thats really cool
(yes i know bad pun..... really bad)

jules

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Re: The Nebulae Collection (formed from many threads)
« Reply #34 on: September 09, 2007, 09:15:05 pm »
This unassuming brown blob produces no NED or SIMBAD finds - and there is no spectrum - but according to my planetarium software it is IC4593 - a magnitude 10.9 planetary nebula in Hercules.

587742061097517872

http://cas.sdss.org/astro/en/tools/chart/navi.asp?ra=243.02969312&dec=12.0713562

EricFDiaz

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Re: The Nebulae Collection (formed from many threads)
« Reply #35 on: September 09, 2007, 09:33:42 pm »
Well, it's possible. With no redshift, there's no way to tell if it's in our galaxy or not. Here's a better image of IC 4593 for comparison. The morphology seems somewhat similar.


jules

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Re: The Nebulae Collection (formed from many threads)
« Reply #36 on: September 09, 2007, 10:20:34 pm »
There are few clues you're right - but the neighbouring stars match on the software and the ra / dec is right. Not the most exciting find but it'll do me for tonight :)

elizabeth

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Re: The Nebulae Collection (formed from many threads)
« Reply #37 on: September 10, 2007, 05:39:18 am »
 ;D ;D ;D that is a wonderful nights work keep posting

jules

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Re: The Nebulae Collection (formed from many threads)
« Reply #38 on: September 15, 2007, 06:36:16 pm »
A much brighter example than the previous brown blobs I posted...

587733441049919517

elizabeth

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Re: The Nebulae Collection (formed from many threads)
« Reply #39 on: September 16, 2007, 05:45:06 am »
 ;D maybe you should post this in the blues.

Hanny

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Re: The Nebulae Collection (formed from many threads)
« Reply #40 on: September 16, 2007, 08:05:50 am »
Ive never seen anything like this!

little prince

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Re: The Nebulae Collection (formed from many threads)
« Reply #41 on: September 16, 2007, 09:08:29 am »
did you consider the possibility of an artefact?

it looks too good to be true: a perfect rectangle with a circle inside
couldn't this just be a lense error produced by the light of a nearby star?

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zookeeper_Kate

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Re: The Nebulae Collection (formed from many threads)
« Reply #42 on: September 16, 2007, 11:58:45 am »
It is a planetary nebula! I think it looks like that because it has been overexposed - but see todays Object of the Day for more information... Cheers

Hanny

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Re: The Nebulae Collection (formed from many threads)
« Reply #43 on: September 16, 2007, 12:00:09 pm »
Thanks Kate! ;)

jules

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Re: The Nebulae Collection (formed from many threads)
« Reply #44 on: September 16, 2007, 04:47:35 pm »
did you consider the possibility of an artefact?

it looks too good to be true: a perfect rectangle with a circle inside
couldn't this just be a lense error produced by the light of a nearby star?



The NED, ra / dec co-ordinates and neighbouring star patterns all agreed it really was NGC 6058 :)

And yes Elizabeth - I'll pop it in "The Blues" too. Got so carried away with verifying my find I forgot about that thread  ::)