Messier 22 is one of the largest and brightest globular star clusters in the summer skies. Comprising more than 100,000 stars spanning 90+ light years and lying more than 10,000 light years away, M22 seems to be bursting through the sheet of foreground stars in the Sagittarius spiral arm of our galaxy around halfway between it and us. From dark skies, it is visible to the naked eye as a small smudge just a couple degrees to the northeast of the bright star Kaus Borealis (also known as Lambda Sagittarii). In a 12" or larger telescope, the orange color of the brightest stars starts to become visible.
Losmandy G-11G, Takahashi TSA-102 (816mm, f/8), SBIG ST-2000 XCM, Canon 450D Rebel XSi, IDAS LPS2 filter. Composite of two shots: 3 x 15 min ST-2000 shot 08-19-06 and 8 x 5 min at ISO 400 Rebel XSi shot 07-28-08. 95 minutes total exposure time.