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drjolo

IC4954 and Roslund 4

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Curt Roslund was a Swedish astronomer who discovered seven new open clusters spectroscopically. These clusters are not well defined and are not obvious objects. One of them - Roslund 4 - is located in Vulpecula constellation and is surrounded with two reflection nebulae: IC4954 and 4955. This complex is placed about 6500 light years away, and the cluster age is estimated to 4 million years. Scientists claim that it is a star formation region, though the amount of stars being born there is low. 

10,14.10.2018, Meade ACF 10" f/10, AP CCDT67, EQ6, QHY163M, LRGB 160:40:30:40 x 60 sec, gain=100, suburban sky. Seeing moderate, transparency good.

2018-10-10-I4954.jpg

Thanks for watching. Happy New Year and only clear skies in 2019!

Edited by drjolo
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