Thursday, February 28, 2013

Comet C/2012 T5 Bressi

Currently seen in STEREO HI1A imager is Comet C/2012 T5 Bressi, thought to be disintegrating.
Mag estimates varied before it made its closest approach to the sun. It is now leaving but still within 1 Au from the sun.

video

Tuesday, February 12, 2013

More Lemmon squeezing...

Update 20130303 - Some better views of Lemmon tail, using the ED80mm and DKM51 and the DSLR with a 300mm lens, both tracking with the telescope.
Better tail views achieved with DMK51AS 99x10sec images
DMK51 and DSLR images


C/2012 F6 Lemmon 30 sec  @ 300mm DSLR

Sum of B/W images again


Update 20130220 - An image of C/2012 F6 via Itelescope T9 90sec exp some imagej work.


Now that I know where C/2012 F6 Lemmon is. I have been zooming in using a DSLR and my Telescope. Unfortunately my night sky is not dark enough to get the long flowing blue Ion tails.
Lemmon closing in on 47 TUC

Trying to catch the comets tail....
Second night getting closer.
 Eta Carina rose high enough in the southern sky to get this processed image...

ETA Carina ..sum of 20sec B/W images

Saturday, February 2, 2013

Little green comets

video


A simulation of a Green coma comet showing a blue Ion tail randomly affected by solar wind.
Sim Green Comet processed pictures....