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Comet Lulin (February 19, 2009)

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#1 CarlosEH

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Posted 19 February 2009 - 03:43 PM

I made an observation of Comet Lulin (C/2007 N3) on February 19, 2009 (06:30 and 07:00 U.T) using my 11 x 56 mm Oberwerk binoculars and 9-inch (23-cm) F/13.5 Makutov-Cassegrain (78x) under average to good seeing conditons (5-7/10). The comet is moving rapidly through the constellation Virgo at this time and was located south of Beta Virgo (Porrima, 3.43m) at the time of my observation. The coma of the comet appeared elongated in a northwest-southeast direction with a bright stellar-like nucleus. The first observation was made using my 11 x 56 mm Oberwerk binoculars and the second using my 9-inch Maksutov-Cassegrain (163x). While observing the comet over a period of an hour I noted it's movement. This is one fast comet!

Digital images produced using Photoshop CS3.

Carlos

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#2 CarlosEH

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Posted 19 February 2009 - 03:47 PM

My second observation of Comet Lulin (C/2007 N3) using my 9-inch (23-cm) F/13.5 Maksutov-Cassegrain at 163x under average to good seeing conditions (5-7/10). The inner coma appeared to have a "granular" appearance.

A digital image produced using Photoshop CS3.

Carlos

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#3 frank5817

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Posted 19 February 2009 - 10:34 PM

Carlos,

Excellent sketches of comet Lulin. :rainbow: It looks great in these sketches. :bow: I got a look a few nights back with the gibbous moon nearby so I almost don't count that as an observation. It was bright and elongated as you have sketched it and was also somewhat blue-green. I should be able to get another quick look tonight but sketching it is unlikely. Temperatures are falling to the frigid single digits (6°F). I have a cold limit (19°F) for sketching. Below that temperature my cerebrum no longer associates with my finger muscles.

Frank :)

#4 Tommy5

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Posted 19 February 2009 - 11:37 PM

very nice sketch, you are really posting a blizzard of fine sketches, i hope to see this comet later this month if the weather can clear, tonight is clear but frigid and i have to get up in the morning for work, maybe i will get a chance to view this comet over the weekend thanks again for posting..

#5 oalithgow

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Posted 20 February 2009 - 12:27 AM

nice sketching A++

#6 CarlosEH

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Posted 20 February 2009 - 02:50 AM

Thank you all for the compliments on my Comet Lulin observations. This is an interesting comet to follow. The best of luck in your own observations.

Carlos

#7 markseibold

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Posted 21 February 2009 - 05:25 AM

Carlos

Very nice sketches. I just went out for the first time to see Lulin. Naked eye with asserted averted vision. 7 X 50 binoculars and 10.1" f/4.5 Newtonian with 32mm plossl producing 45X.

Your sketches are very similar to what I saw in my Newtonian- Elongated coma and a very diffuse overall image with small condensed fuzzy-star-like nucleus.

Thanks for posting this useful info and great sketches.

Mark

#8 Special Ed

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Posted 21 February 2009 - 07:27 PM

Carlos,

I've been sick and off the boards but I wanted to tell you I'm glad you've started observing Lulin--these are a pair of fine observations and sketches. :) Hope you get more opportunities whlile Luna is down.

#9 CarlosEH

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Posted 22 February 2009 - 05:02 AM

Mark and Michael,

Thank you for the compliments on my Comet Lulin observation. I have been anxious to observe this interesting comet. The best of luck observing Comet Lulin in the future.

Michael- I am sorry to hear that you have been ill. We are all glad to have you back on the forum.

Carlos

#10 HellsKitchen

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Posted 22 February 2009 - 08:17 AM

Great sketches once again! This is an unusual looking comet, reminds me of the Sombrero Galaxy or the Saturn Neb.

I'm looking forward to observing this, but we've been getting dense smoke haze from the bushfires.

#11 Jeremy Perez

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Posted 22 February 2009 - 02:03 PM

Carlos, great work on these sketches and congratulations on observing the opposing tails. You've made skillful use of the digital tools to create the soft, gradual transitions visible in the eyepiece.

#12 CarlosEH

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Posted 23 February 2009 - 02:53 AM

HellsKitchen and Jeremy,

Thank you for your compliments on my Comet Lulin observations. This is an unusual comet that merits observing.

HellsKitchen- I am sorry to hear of the brush fires over Southern Australia which have damaged property and taken lives. Our thoughts and prayers are with everyone affected.

Jeremy- Your observations posted here and on your web site are excellent. You have recorded the comet faithfully as well. I look forward to your future observations.

Carlos

#13 rodelaet

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Posted 23 February 2009 - 04:57 PM

Carlos,

I've not been able to see the comet myself. But your beautiful sketches make me happy, because the comet is visible with binoculars.

Thank you for sharing these observations.






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