Telescope
Astro-Physics 155mm Refractor @ f7
Camera
SBIG ST-2000XM
SBIG Colour Filter CFW-8A
Image
Acquisition
MaxIm DL V4.07
Date Taken
16 February 2005
Exposure Details
LRGB
= 6 exposures each
L Sub-Exp 10 min L 1x1 binned
MaxIm R,G,B sub-exp ratios 1.0:0.48:0.8x10min 2x2 binned
Temp = -20C
Ha - none
Image Processing
Raw L, R G,B, Dark, Bias, Flat and
Flat Dark frames acquired, reduced & combined in MaxIm
L images added and master L Unsharp Masked in PhotoShop CS.
Each colour channel Sigma Clip combined and aligned in MaxIm.
LRGB masters combined and finished in PhotoShop CS.
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Also
Known As
M64
NGC4826
Constellation
Coma Berenices
Position
RA and Dec
RA: 12h
56m 44.3s
Dec: +21°41'05"
(Epoch 2000)
Highest Altitude at This Site
Approx 70°
Distance
Est 14 million light years
Size & Magnitude
Galaxy :10.0' x 5.4'
Field : 37 x 27 arcmin approx
Mag 8.7
What it is
It seems that the M64 galaxy was once
in a collision with a smaller oppositely rotating galaxy, resulting
in a dark band of higher density gas and dust obscuring part of the
central region of the larger galaxy.
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