Comet SWAN 2006 M4
2006 09 26 UT ~ 5 24 AM CDT
19x30 sec exposures stacked on comet so that stars are streaks. About 8th mag and visible in binoculars !
Image uploaded on: 2006-09-27 05:56:51
GRB060819 region. No afterglow immediately visible. 25 x 120 sec for 50 minute total exposure. Region was at a low 30-25 degree altitude and dawn was approaching. Region is in central Cygnus with lots of background MW stars.
Image uploaded on: 2006-08-19 05:38:08
Quarter frame crop ( 128x128 pixels, 7.2x7.2 arc min )centered near reported GRB060807 OT. 150 x 30 sec for total exposure of 75 minutes. Acumulated hot pixels at 1 o'clock near center of frame and near top center are artifacts. No afterglow observed to a limit between 20 and 20.5 mag.
Image uploaded on: 2006-08-08 01:27:08
New component BN of Comet 73P image from 5/6 UT. First observed 5/2 ( see below ) as a companion to component R without much of a tail visible, the tail is now more fully developed. It is starting to show evidence of breaking up. How long will it survive ?
Image uploaded on: 2006-05-11 22:12:45
New component of Comet 73P near H, about 3 or 4 arc min away at PA 240. New component almost matches compoent H in brightness. It almost seems that the new component has already broken in two. There is another much dimmer component about 15 min away at PA ~300 not visible in these images. Images by Dr. D. T. Durig and Byron Greene.
Image uploaded on: 2006-05-02 07:19:13
New 17th magnitude component of Comet 73P located about 10 arc min west from component R at PA 300. Motion vector is essentially the same as R. Just a minor hint of a tail, but perhaps it may develop soon. Images by Dr. D. T. Durig and Byron Greene.
Image uploaded on: 2006-05-02 06:56:05
Eastern most component AT of Comet 73P imaged on 4/28 UT. Currently located six degrees east of bright component C and much dimmer at 18th mag. Perihelion for this component will be the earliest of any yet announced on June 6.22, 2006.
Image uploaded on: 2006-04-28 07:33:53
New images from 4/28 UT of 73P component AS showing its fragmentation. The pieces are still all lined up in the tail, but at least three or four are distinct enough to measure.
Image uploaded on: 2006-04-28 07:26:31
Same new 17/18th magnitude fragment AS as below, but a negative image and moving away from background stars.
Image uploaded on: 2006-04-27 02:45:18
New 17th mag component AS of Comet 73P almost 4 degrees East of component C. Very fast mover at 4.1 arc sec per minute at PA 81. Images are stacks of ten 30 second exposures stacked with the motion vector of the comet compoent.
Image uploaded on: 2006-04-27 02:43:16