More M71

Globular cluster Messier 71 (NGC 6838) in Sagitta, shown from a 15-second V-band

exposure with a Tektronix 2048×2048 CCD at the prime focus of the 4-meter Mayall

telescope of Kitt Peak National Observatory. North is at the top and east to the

left. A 512×512-pixel region is shown in this presentation, which uses a

logarithmic intensity transformation to preserve information across a wide dynamic

range. The field shown is 3.6 arcminutes square. This cluster presents a visual

impression that looks more like a very rich open cluster (such as

M11) than typical globular clusters, being rather

sparse compared to some of its kind in this part of the sky.

From Bill Keel’s collection at the

University of Alabama.

• More images from Bill Keel’s collection

  

  Three color composite image of M71 by

  T. Credner, S. Kohle,

  University of Bonn, taken on October 22/23, 1995 with the 1.23-m Calar Alto

  telescope. Exposures: Blue (B):42m, Green (V):20m, Red (I):9m with WWFPP,

  2048×2048 CCD. Field of view is 20.7×18.8′.

  © T. Credner and S. Kohle

• More images from Till Credner and Sven Kohle

  ---

  Hartmut Frommert

  ([email protected])

  Christine Kronberg

  ([email protected])

  

  

  

  

  Last Modification: 20 May 1999, 16:30 MET