Oleg Bryzgalov
M11: The Wild Duck Cluster in Scutum
Explanation: Many stars like our Sun were formed in open clusters. The above pictured open cluster, M11, contains thousands of stars and is just over five thousand light years distant. The stars in this cluster all formed together about 250 million years ago. The bright young stars in M11 appear blue. Open clusters, also called galactic clusters, contain fewer and younger stars than globular clusters. Also unlike globular clusters, open clusters are generally confined to the plane of our Galaxy. M11 is visible with binoculars towards the constellation of Scutum. (Text: apod.nasa.gov/apod/ap030122.html )
This picture was photographed during 2 nights in August, 2014 in Khlepcha observatory, Ukraine.
Equipment: home assembled reflector 10 in., f/3.8
Mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr-2. Off-axis guidecamera QHY5L-II.
RGB filter set Baader Planetarium.
RGB= 18*150-200 sec. each filter, unbinned. 2.5 hours total
Processed Pixinsight 1.8, Fitstacker and Photoshop CS
M11: The Wild Duck Cluster in Scutum
Explanation: Many stars like our Sun were formed in open clusters. The above pictured open cluster, M11, contains thousands of stars and is just over five thousand light years distant. The stars in this cluster all formed together about 250 million years ago. The bright young stars in M11 appear blue. Open clusters, also called galactic clusters, contain fewer and younger stars than globular clusters. Also unlike globular clusters, open clusters are generally confined to the plane of our Galaxy. M11 is visible with binoculars towards the constellation of Scutum. (Text: apod.nasa.gov/apod/ap030122.html )
This picture was photographed during 2 nights in August, 2014 in Khlepcha observatory, Ukraine.
Equipment: home assembled reflector 10 in., f/3.8
Mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr-2. Off-axis guidecamera QHY5L-II.
RGB filter set Baader Planetarium.
RGB= 18*150-200 sec. each filter, unbinned. 2.5 hours total
Processed Pixinsight 1.8, Fitstacker and Photoshop CS