Messier 81 spiral arm (WFPC2 image)
Date: 07 Jan 2004 The image is composed of four separate exposures from the ESO/ST-ECF Archive through a blue filter, a green filter, a red filter and a near-infrared filter. The image was taken with Hubble's Wide Field and Planetary Camera 2. Acknowledgement: Bob Kirshner (Harvard University, USA)
Last Update: 01 Jun 2005
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