Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astro.louisville.edu/shared_skies/archive/select/messier/m44/20111024/notes.txt Дата изменения: Fri Nov 2 01:58:50 2012 Дата индексирования: Sun Feb 3 14:54:40 2013 Кодировка:

Target: M44

Date: 2011-10-25

Time: 09:02:49 UT

Telescope: CDK20N

Camera: Apogee U16M

Filters: griz

Exposure time: 100 seconds

Observer: John Kielkopf

Processing: John Kielkopf

Images dark subtracted but not flat fielded

Astrometry with astrometry.net

RGB generated in ds9

jpg and png orientation is N up and W right

Log stretch 1000 color balanced to account for filter and camera efficiency