Gallery: Tempel 1 (2004-2005)
Observation made by Robert J. Morgan
| Image Parameter | Details |
| Comments: | I began my observation at 21:00PDT using a 3xbarlow/7.5mm(480x)eyepiece. Tempel 1 was not sighted. Using a 3x barlow/25mm(144x) eyepiece I located Tempel 1. The comet was dim, a difficult target to aquire.
At 21:20PDT, using only the 25mm(48x)eyepiece, I confirmed my sighting at AZM: 209.0d ALT: 37d. Tempel 1 was positioned between the stars HD118675 and HD118281. 21:30PDT to 21:40PDT: Observed using a 17mm(71x) eyepiece. Tempel 1 was still faint compared to 9th magnitude HD118675 and 8th magnitude HD118281. As the night progressed, Tempel 1 became an easier observation target. This was aided by another eyepiece change at 21:40PDT to 10mm(120x). Significant events and times: 21:29PDT: Noted two(2) 'flare' events of the comet as it brightened briefly in rapid succession. 22:52PDT: At time of impact there was a noticable, though slight, brightening of the comet. 23:06PDT: 14 minutes after impact Tempel 1 appeared much brighter. Estimate increase of +1 in visual magnitude based on comparison with the 8th magnitude star HD118281. 23:12PDT: satellite SL-16 R/B; USSPACECOM catalog No: 28353; International Designation Code: 2004-021-B passed through the lower portion of the telescope field of view. 23:14PDT: Tempel 1 is dimming now, in comparison to the first sighting at 21:20PDT. 23:20PDT: Tempel 1 is now very dim and difficult to observe. 23:20:15PDT: lost sight of Tempel 1 at AZM: 237.5d ALT: 21d. End report. Robert Morgan |
| Image Date/Time: | 2005-07-03/21:00PDT TO 23:20 PDT |
| Observing Site: | LAT: 39d 11m N
LONG: 119d 45M W Carson City, NV |
| Weather: | Clear. 'seeing' was good. |
| Telescope: | ORION 203mm(8") f/6 Dobsonian mounted Newtonian reflector. Focal length 1200mm |
Table 1: Data about observation.
Updated: 30-Jul-2013