Comet 73P and M57

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Comet 73P and M57

Postby asterixhb » Sun Apr 30, 2006 12:50 pm

I have just downloaded the latest Co-ords for Comet 73P (S.W.) for Cartes du Ciel and ran a simulation for the next week. There appears to be an excellent photographic opportunity around 0400 hrs on Monday 8th of May when it passes almost directly over M57 (The Ring Nebula). Should be a challenge for some of you out there regarding comparitive image size and magnitudes. [image]http://smileys.smileycentral.com/cat/12/12_1_110.gif[/image]
Pages 44 & 45 of May's mag show the track throughout May. I managed to observe it last night (29th) between the clouds, and was able to get the comet and M13 (Globular cluster in Hercules) in the same FOV, but only just.
[image]http://smileys.smileycentral.com/cat/36/36_1_11.gif[/image]

(This should probably have been in Astro Alerts.)
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RE: Comet 73P and M57

Postby big binoculars » Sun Apr 30, 2006 12:50 pm

hi,kev.well done on spotting it.
clouded over here last night.
lets hope for clear skies on closest approach.
what mag' would you estimate it at!!.
cheers,andy.
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RE: Comet 73P and M57

Postby asterixhb » Sun Apr 30, 2006 12:50 pm

Andy, Sorry, but can't give you an estimate, I was so chuffed at finding the thing that all I did was 'gawk' at it like a loon. I could make out the tail quite clearly, but my eyes were not fully dark adapted as one of the neighbours' security lights kept checking that I was secure!!!! Also, it was quite early on so was fairly low down (about 23:00 hrs). The clouds were building up quite rapidly then so packed up for the night. Still feel fairly smug with myself though.
[image]http://smileys.smileycentral.com/cat/36/36_11_22.gif[/image][/align]
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RE: Comet 73P and M57

Postby big binoculars » Sun Apr 30, 2006 1:06 pm

hi,kev. no worries.i'm glad a few more people are seeing it.
cheers,for now, andy.
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RE: Comet 73P and M57

Postby Chanctonbury » Sun Apr 30, 2006 5:33 pm

[quote]I have just downloaded the latest Co-ords for Comet 73P (S.W.) for Cartes du Ciel and ran a simulation for the next week[/quote]

I did this too using the same software and then I transferred the data to my Palm PDA's Planetarium software so that I could track it easily. The M57 encounter will be a challenge because of the glare from the relatively glare comet fragment and The Ring is not large or particularly bright but if ( ?? !! ) I get a clear sky I cannot resist the challenge!

There was a break in the cloud last night although it was very misty indeed and I had a look for it off Hercules but have to confess that I didn't find it. Jupiter, however, looked fantastic with the moons in a lovely arc over the planet.
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RE: Comet 73P and M57

Postby asterixhb » Sun Apr 30, 2006 7:13 pm

Steve, at present, it is very close to Zeta (Hercules) which is the lower right star in the keystone asterism. (Hope I'm not teaching you to suck eggs, what with salmonella, bird flu etc!!) [image]http://smileys.smileycentral.com/cat/4/4_1_6.gif[/image]
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RE: Comet 73P and M57

Postby Chanctonbury » Sun Apr 30, 2006 7:30 pm

Hi Kev,

I concur! I still couldn't see it through the mist last night though!! Hmmm ..... got chicken for the barbecue tonight ......
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RE: Comet 73P and M57

Postby Chanctonbury » Tue May 02, 2006 1:46 am

Yippee, I finally got a chance to image again after weeks of cloudy skies!! Now I know I won't win any prizes with this one but at least I clicked the shutter release! It is amazing ( although obvious!) to see the distance that the comet has moved in just about 15 minutes!

Image

10" Reflector, EQ6 Mount, Canon EOS 300d at prime focus. 1 shot 120 secs. with dark frame subtraction, ISO 800

Image

10" Reflector, EQ6 Mount, Canon EOS 300d at prime focus. 3 shots 60 secs. each stacked with dark frame subtraction, ISO 1600
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RE: Comet 73P and M57

Postby les » Tue May 02, 2006 2:36 am

HI Steve,
Lovely images,I hope you get a chance to image the comet and the Ring together it would be some picture[8D]Its a pity It occurs so close to sunrise as in Scottish latitudes it will be getting light by closest approach.[:@]
Regards Les.
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RE: Comet 73P and M57

Postby skymaster » Tue May 02, 2006 11:30 am

well done steve,nice images.lets hope for clear skies at closest
approach,all the best,andy.
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