The comet C/2011 L4 (PANSTARRS) seen from Melegnano, Italy this evening.
Camera Model Name: Canon EOS 5D Mark II
Exposure Time: 8 sec
F Number: 2.8
ISO: 200
Date/Time Original: 2013:03:14 18:31:28 UTC
Focal Length: 100.0 mm
Lens Type: Canon EF 100mm f/2.8 Macro USM
Re: Submission Gallery: 2013 Comets
Posted: Thu Mar 14, 2013 11:51 pm
by avdhoeven
Here is my image of Panstarrs over the world famous windmills of Kinderdijk...
The sky was clear in Green Bank, WV this evening. This is a photo of the PanSTARRS comet over the NRAO's GBT (Green Bank Telescope). More info on the GBT can be found here https://science.nrao.edu/facilities/gbt/.
My son and I observing Comet PanSTARRS from the top of a sand dune on Cape Cod, Massachusetts, USA on the evening of March 13, 2013. The image was taken with a remote camera trigger while we walked up to the top of the dune. A wonderful experience to share with him!
Comet PANSTARRS surfing the mountains and low level clouds above the foothills of Boulder, Colorado. Turned out to be a wonderful viewing of the comet!
Here's a rather different view of the comet. Using the 1.2 day Moon, I subtracted the twilight colors from an image of the comet (acquired through a Celestron C11/Hyperstar3. The negative shows some faint striations in the ion tail. Enjoy!
Re: Submission Gallery: 2013 Comets
Posted: Fri Mar 15, 2013 9:57 pm
by jldauvergne
Panstarrs over the roofs of Paris, march 16th 2013 http://astrophotography.fr
Copyright: Jean-Luc Dauvergne
The comet C/2011 L4 (PANSTARRS) setting behind Mount Rosa, Italy: picture taken from mount Mottarone summit.
Camera Model Name: Canon EOS 5D Mark II
Exposure Time: 6s
F Number: 2.8
ISO: 200
Date/Time Original: 2013:03:15 18:42:48 UTC
Focal Length: 100.0 mm
Lens Type: Canon EF 100mm f/2.8 Macro
Comet C/2011 L4 PANSTARRS.
Taken in Chandlers Ford Hampshire on 13th March 2012 1915 UTC. Canon 40D 50mm lens f1.4 1 second at ISO 800. Very low down in the twilight haze
Possible fragment splitting from PanStarrs nucleus
Posted: Sat Mar 16, 2013 1:22 pm
by PeterR
Yesterday evening I focused on PanStarrs nucleus and coma rather than on it's tail, so I exposed not to saturate the nucleus and on 4-5 sequences there seems to be a fragment splitting from the nucleus visible bellow the coma.
This image was taken starting at 18:08:39 UT on the 15th of March and is a little more than 5 minutes of total exposure through a 10" (250 mm) Newton telescope.
The second image is sharpened and contrast enhanced. The colorfull third image is a frequency modulation that further enhances the local contrast and shows the possible fragment as a dark dot.
There seems to be 2 tails separated by a darker lane.
There was also a wing of an airplane passing through the tiny field of view (13' x 18'), leaving a trail and some star-shaped flashes.
I hope that this possible fragment can be confirmed soon.
Comet C/2011 L4 (PanSTARRS) can be seen above the trees in the photograph taken on March 13, 2013. I cannot underestimate the importance of using a compass while looking for the comet. These twilight photos are really making me step outside my comfort zone when it comes to astrophotography. I am used to "star-hopping" to compose most of my night photographs. I feel like every day I photograph this comet, I am learning something new!
Re: Submission Gallery: 2013 Comets
Posted: Sat Mar 16, 2013 3:27 pm
by philto
hello, last night with a self-made newton 200 mm F/3
eos 5DMII lended by HDRsoft 400 iso
7 min exposure
Comet C/2011 L4 (PanSTARRS) on March 16 2013. Airport Wroclaw. Poland. Author Paweł Stankiewicz.
Re: Submission Gallery: 2013 Comets
Posted: Sat Mar 16, 2013 9:24 pm
by Lorenzo Comolli
Comet Panstarrs above Monviso and Italian Alps.
15 March 2013, from Capanne di Cosola (Italy), at 1500 m heigth.
Photo details: (1°) 350D, 50 mm f/3.5, 3.2 s exp, 1600 ISO. (2°) 5D, 200 mm f/5.6, 4 s exp, 1600 ISO.
Copyright 2013 Lorenzo Comolli http://www.astrosurf.com/comolli/index2.htm
