 |
M67 - Open Star Cluster in Cancer
|
Copyright 2007 Hap Griffin
At 4 billion years of age, M67 is one of the oldest open clusters in our galaxy. Being roughly the same age as our solar system, it contains over 100 stars of the same type and chemical composition as our sun and indeed is the target of many studies of solar type stars.
M67 lies at a distance of 2700 light years.
Date/Location:
December 17, 2007 Griffin/Hunter II Observatory Bethune, SC
Instrument: Canon 40D (modified IR filtering) Digital SLR through
10" Newtonian w/MPCC
Focal Ratio: f/ 4.7
Guiding: SBIG ST-237 through Orion ED80
Conditions: Damnably cold for a Southern boy
Weather: 20 F
Exposure: 20 minutes total (20 x 1 minute @ ISO 800)
Filters: Baader UV/IR block internal to camera
Processing: Focused and captured, RAW to TIFF conversion,
flat frame calibration, Digital Development, resizing and JPEG conversion in ImagesPlus.
Final tweaking in Photoshop
CS2.