Messier M22 Globular Cluster

Objects Information
Objects in image

Messier M22 Globular Cluster
Wikipedia Messier 22
SEDS Messier 22
Astronomy Picture of the Day
- Globular Cluster M22 from CFHT 2005 June 27
- The Annotated Galactic Center 2001 December 29
- Unusual Flashes Toward Globular Cluster M22 2001 July 3
Image Information
- Field of view: 115.7 arcminutes wide x 86.8 arcminutes high at 4.33 arcsec/pix
- Image reduced from 1600x1200 to 1200x900 for website
- North is top edge, west is right edge
- Exposure: 9 images x 480 seconds per image (72 minutes total)
- CCD-TEMP: -20°C
- Astronomik Type IIc Luminance filter
- Guided
Observing Information
- OBS-Location: Oregon Star Party (OSP), OR USA
- DATE-Local = August 28, 2008
- TIME-Local of first image = 8:45 PM
- TIME-Local of last image = 10:10 PM
$QSI 520 CCD Camera on Pentax 75mm SDHF APO Refractor$
Imaging Equipment
- QSI 520 CCD Camera on Pentax 75mm SDHF APO Refractor
Imaging Processing
- AIP4WIN V2.3
- Diffraction Limited MaxIm DL V5.04
- Adobe Photoshop CS3 10.0.1
- Noel Carboni Photoshop Astronomy Tools V1.5
Monitor Test Pattern

The following test pattern is to help you adjust your monitor to best view the CCD astro images. The test pattern is used for adjusting monitor brightness, and contrast. Adjust monitor brightness and contrast to see all 16 gray scale levels. The most important adjustment when viewing astro images is to see the differences in all of the black bands.

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Messier M22 Globular Cluster

Monitor Test Pattern