Monday, May 2, 2016

Comet 252P/LINEAR: continued

The comet is substantially dimmer than it was in the beginning of April. Nevertheless, it is much brighter than expected (~18m by http://theskylive.com/comets?s=252p).

2016-05-01 23:36-23:44 (UT+3)
Kyiv (Osokorky)

The comet is near the center, a bright star to the left is Alpha Ophiuchi.
An open cluster IC 4665 is visible near the bottom edge, to the left of the center, close to Beta Ophiuchi.
Image size is 15 x 15 deg (by nova.astrometry.net).
Actually, we only see an inner part of comet's coma. The comet itself is quite diffuse, outer parts of coma are too faint to be visible in the image taken in the light-polluted area with short exposures.
Canon EOS 600D + EF 50mm f/1.8 II; ISO3200; F/2.8; 73x3s.
Processing: DSS; FITStacker; RawTherapee; NeatImage; FSViewer.

Just for info: single frame (approximately the same region is cropped).

No comments:

Post a Comment