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Дата изменения: Fri Dec 21 02:06:06 2007 Дата индексирования: Sat Dec 22 01:52:10 2007 Кодировка: |
Charts
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Galaxies' Charts and Images
From this page you can down-load galaxy charts useful for visual supernova search
This chart shows nearby galaxy NGC 2805. It can
be used in visual hunting of supernovae with 8 to 20 inches telescopes. These charts were
drawn by Italian amateur Stefano Pesci for his
program of SN search, from Palomar Survey plates. Stars as faint as mag. 18-19 are shown
inside or close to the galaxy outter boundary. Only brightest stars are indicated outside
the galaxy. Use of these charts to compare CCD images is not recommended. Further
information on these charts is available here. CCD Atlas is a compilation of CCD images of
deep sky objects (galaxies, nebulae and clusters). It includes well-known objects (the
whole Messier catalogue) as well as less known objects (e.g. NGC and IC catalogues). All
images were obtained with a HiSIS22 CCD camera equipped with a KAF-0400L chip (768x512
pixels, 9x9 microns, 6.9x4.6mm2, 14bits, with anti-blooming). Two different telescopes
were used: (i) Celestron 14 (C14) and (ii) Meade2045 (Meade4) housed in a roll-off-roof
observatory in Central Portugal. Total integration times varied from 1min (open and
globular clusters) to 5/20min (nebulae and galaxies). With few exceptions, images were
obtained using 2x2 binning (384x256 pixels).
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