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M3
Globular
Cluster in Canes Venatici
Uploaded
4/27/05
There
are a surprising number of both dim blue stars across this field,
along with the occasional red star in the background. Most stars
appear to be yellowish in hue as is the case with many globulars,
with a large number of very faint blue stars in between. While
the cluster itself has an integrated magnitude of 6.3, the brightest
members are 12.7 magnitude corresponding to the yellow stars,
and the faint blue stars are near 15.6th magnitude. There are
also several MAC galaxies in this field, the brightest at 16th
magnitude. This object, MAC1343+2823 is .2 mins in diameter,
and is a reddish object about an inch from the left edge in the
largest image. |
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG ST10XME NABG with Enhanced Cooling
Guider: SBIG internal
Exposure: LRGB = 30:10:10:10 (All Binned 2x2)
RGB Combine Ratio: 1: 1: 1.11
Filters: AstroDon RGB Tricolor
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FWHM = 6.8 arcsec (Maxim DL - 10min subframe), Transparency 8/10
Outside Temperature: 10 C
CCD Temperature: -20 C
Processing Tools: Maxim DL, Photoshop, PixInsight, RW Debloomer.
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