Observations of Comet 73P-C/Schwassman-Wachmann 3

73P-C - 2006 Apr. 09.42, 12.31, 15.41, 16.32, 18.32, May 12.47 UT


73P-C

73P-C on 2006 Apr. 9.42 UT
SAO 1.2-meter at Mount Hopkins (MPC code 696) with Sloan i filter
21 x 30-second averaged image (brightest pixel rejected to eliminate cosmic rays) 
1.3" seeing through variable cirrus
log display
7.5' by 6' FOV (plate scale 0.67" / pixel)

Contour plot of central 20" x 20"


73P-C on 2006 Apr. 12.31 UT
SAO 1.2-meter at Mount Hopkins (MPC code 696) with Sloan i filter
30 x 20-second averaged image (brightest pixel rejected to eliminate cosmic rays) 
1.5" seeing through variable cirrus
log display
7.5' by 6' FOV (plate scale 0.67" / pixel)

Contour plot of central 20" x 20"


73P-C on 2006 Apr. 15.41 UT
SAO 1.2-meter at Mount Hopkins (MPC code 696) with Sloan i filter
20 x 30-second averaged image (brightest pixel rejected to eliminate cosmic rays) 
2.0-2.5" seeing through light cirrus and strong moonlight
log display
7.5' by 6' FOV (plate scale 0.67" / pixel)

Contour plot of central 20" x 20"


73P-C on 2006 Apr. 16.32 UT
SAO 1.2-meter at Mount Hopkins (MPC code 696) with Sloan i filter
10 x 20-second averaged image (brightest pixel rejected to eliminate cosmic rays) 
1.3" seeing, photometric,  strong moonlight
log display
7.5' by 6' FOV (plate scale 0.67" / pixel)

Contour plot of central 20" x 20"


73P-C on 2006 Apr. 18.32 UT
SAO 1.2-meter at Mount Hopkins (MPC code 696) with Sloan i filter
11 x 15-second averaged image (brightest pixel rejected to eliminate cosmic rays) 
1.6" seeing, photometric, bright moonlight
log display
7.5' by 6' FOV (plate scale 0.67" / pixel)

Contour plot of central 20" x 20"


73P-C

73P-C on 2006 Apr. 27.47 UT
SAO 1.2-meter at Mount Hopkins (MPC code 696) with a Sloan i filter
20 x 10-second averaged image (brightest pixel rejected to eliminate cosmic rays) 
1.4" seeing, photometric
processed display
6.9' by 5.0' FOV (plate scale 0.67" / pixel)