Messier M33 Triangulum Galaxy
Object Information
- M33 in NASA/IPAC Extragalactic database
- M33 in
SEDS Messier database
Photo Information
- Field of view: 68.4 arcminutes wide x 101.5 arcminutes high
- North is top and west is right
- Exposure: 68 images x 120 seconds per image
- CCD-TEMP: -34°C
- No filter
- Guided
Faint Data Analysis
In the above image PGC005694 is located right edge, just below vertical center.
- PGC 005694 in NASA/IPAC Extragalactic Database
- At top of red bar is galaxy PGC 005694 magnitude 16
- At top of green bar is star 1205-0020230: blue 1 filter is 19.9 magnitude, red 1 filter is 19.09 magnitude
- At top of blue bar is star 1205-0020239: blue 1 filter is 20.18 magnitude, red 1 filter is 19.48 magnitude
- Star data from VO Compliant Catalogue Cone Search Page
Observing Information
- OBS-Location: Camas, WA USA, 16.6 miles East-North-East from the center of Portland, OR
- Very windy and poor seeing
- Clouds stopped the imaging session
- DATE-Local = December 10, 2007
- TIME-Local = 6:55 PM to 9:27 PM
QSI Imaging Equipment
- QSI 532ws-M1 CCD camera
- Pentax 75mm SDHF APO 3-element design refractor (f/6.7 focal ratio, 500mm focal length) telescope
- The telescope mount is the Orion Telescopes and Binoculars Sirius EQ-G with GoTo Controller
Imaging Processing
- AIP4WIN V2.20 Beta
- Calibrated with 57 dark frames and 43 two second flat frames using HP laptop monitor as the light source
- 68 images aligned and stacked with Sigma-clip at 3.00, this is a calibrated image
- Rotated so North is up
- Resized 50% to fit on web page
- Converted to JPG with Image Display (black = 887, white = 1867 and gamma = 2.30)
- No other sharpening, scaling, image processing was done to the image
© 1998-2007 David Haworth
