NGC2440 is a tiny planetary in Puppis. It appears about 74" x 42". In one orientation is appears like a bow tie. The central star is a white dwarf with a surface temperature of around 200,000 kelvin.
This image is composed of Ha OIII LRGB with 14 hours of integration time.
There appears to be a faint halo around the object, which could be of further interest with a longer focal length / greater image scale.
Nice one Paul. I don't normally comment on AP as I don't do it myself but I like planetaries and really like the structure you've captured in this tiny one I've not heard of. Cheers, Richard.
I dont normally comment either ..but as I was recently trying to see this 9.5 Mag Planetary visually, just directly south of M46 ..seeing how terrific. this image is..Im inspired to have another look for any detail ....thats if the clouds finally move.
bigjoe.
Nicely done Paul. Nice to see someone else is doing planetary nebulae. As a matter of interest the central star of NGC 2440 is the hottest White Dwarf known at about 200,000 degrees C.
Very nice! I haven't seen that one before either.
Remember the 'machine' from the movie "Contact"? That's what it looks like to me. It looks like it's spinning around in space!
Was that with your new GSO? Nice image!
Must be teeny tiny or a zillion miles away though - be interesting to see that one through a Long FL 'scope.
Well done
That's a fantastic photo! Just saw on Stellarium that it's mag 18.9 - a visual challenge for sure. Apparently also called the Albino Butterfly Nebula, Burning Ember Nebula, Bat Nebula, Kiss Nebula, and Little Lips Nebula. Sounds like anyone can name a nebula these days.
That's a fantastic photo! Just saw on Stellarium that it's mag 18.9 - a visual challenge for sure. Apparently also called the Albino Butterfly Nebula, Burning Ember Nebula, Bat Nebula, Kiss Nebula, and Little Lips Nebula. Sounds like anyone can name a nebula these days.
Should be 9.4 Stellerium makes some odd rare mistakes.
bigjoe.
Should be 9.4 Stellerium makes some odd rare mistakes.
bigjoe.
Thanks Joe, yeah I noticed your earlier post and figured you're probably less likely to be in error than Stellarium. Might have to give this one a crack with the 16" now that it's achievable.
Thanks everyone for the comments. Much appreciated.
Quote:
Originally Posted by Stevec35
Nicely done Paul. Nice to see someone else is doing planetary nebulae. As a matter of interest the central star of NGC 2440 is the hottest White Dwarf known at about 200,000 degrees C.
Cheers
Steve
That is interesting about the temperature because I also read the same but then when I imaged the butterfly nebula or bug nebula I read this also had a surface temperature of 200,000K. I do wonder which one is the hotter of the two.
