File:M13-ESHolden 1880 91-DiagramPASP.jpg

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Description
English: This is a diagram of M13, produced after photographs taken by Holden and Campbel in 1890 and 1891 at the Lick Observatory.
Date
Source Eduard .S. Holden (1891) Characteristic Forms Within the Cluster in Hercules. Publication of the Astronomic Society of the Pacific 3(19):
Author Eduard S. Holden
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The author died in 1914, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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current20:48, 2 July 2013Thumbnail for version as of 20:48, 2 July 2013936 × 1,088 (488 KB)Trinitrix (talk | contribs){{Information |Description ={{en|1=This is a diagram of M13, produced after photographs taken by Holden and Campbel in 1890 and 1891 at the Lick Observatory. }} |Source =Eduard .S. Holden (1891) Characteristic Forms Within the Cluster in Her...

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