Starship Asterisk*

I am anxiously awaiting the perihelion of Comet ISON in the end on November. I have spent years photographing astronomical subjects at night and twilight but have no experience when they are so close to the sun.

The possibility of ISON being a daytime object (magnitude estimates -5 to -12) exists. Has anyone had any experience photographing such objects in the daytime 3 to 5 degrees from the sun? I attempted to photograph McNaught a few years back near the sun with no success. Are there any stacking, processing procedures or filters that would help? Any feedback would be appreciated!

Ison has been photographed with a 4″ telescope by an amateur, is this the smallest yet?
http://cometison.blogspot.co.uk/
Cant see it with my 6″ refractor……..

I have no experience but would like to help the conversation start. I would guess that using a red filter or infrared camera might help because the shorter wavelengths are scattered by the atmosphere. But since IR gets absorbed by water vapor you'd have to try to get above the atmosphere for that option. But hey, the Webb telescope is going to collect light from planets near stars which is a similar task so IR must be good for it...

Geckzilla --

I agree filtering out the shorter wavelengths would help as well as some stacking to improve the signal to noise ratio. I found an example of McNaught photographed using stacking and the green channel of the RGB. http://darkerview.com/wordpress/?p=6168 I wonder what the final image would look like if it was taken with the red channel? Again - IR is another thought entirely!

Watcher --

I found a photo taken with a 300 mm telephoto lens; it is barely visible, but it is there! http://spaceweather.com/gallery/indiv_u ... d_id=87088

An interesting link about how rare a "daytime comet" really is: http://motherboard.vice.com/blog/weve-o ... ng-the-day

Greetings,

Thanksgiving day is here! Is anyone going to attempt a daytime observation?

http://spaceweathergallery.com/indiv_up ... msabb05no5

And remember -- Be careful my friends!