18
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en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
19174
1796
2

dec 29, 1905 - Mount Wilson Observatory was established for study of the Sun.

Added to timeline:

5 Sep 2017
0
0
147
Astronomy Timelime

Date:

dec 29, 1905
Now
~ 113 years ago
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