Open Clusters Archives - Astrodoc: Astrophotography by Ron Brecher

M67 Open Cluster

Ron Brecher — Sat, 18 Apr 2020 13:00:57 +0000

M67 Open Cluster Click image for full size version April 18, 2020 There are two nice open clusters in Cancer. M67, shown here, is more compact and, to me appears richer than, M44 (the Beehive Cluster) in images. But M44 is usually the "showpiece object" that beginners turn to in this part of the sky. [...]

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NGC457 and NGC436

Ron Brecher — Fri, 30 Dec 2016 13:00:15 +0000

NGC457 and NGC436 Click image for full size version December 30, 2016, Astronomy Magazine, May 2017 This image shows a pair of pretty open clusters in Cassiopeia: NGC457 (towards upper right in the image), and the smaller NGC436 (lower left of image). NGC457 is about 7900 light years away and its age is estimated to be [...]

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M11, “The Wild Duck Cluster”

Ron Brecher — Thu, 28 Jan 2016 01:15:59 +0000

M11, "The Wild Duck Cluster" Click image for full size version January 27, 2016, published in Sky & Telescope, August 2017 (May 2012 version featured in SkyNews Online "This Week's Sky" August 18-25 2014 and August 31-Sept 7, 2015) This image shows open cluster M11 set in the rich summer Milky Way. There are so [...]

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M35 and NGC2158

Ron Brecher — Sat, 23 Jan 2016 18:32:44 +0000

M35 and NGC2158Click image for full size versionJanuary 23, 2016; SkyNews online "This Week's Sky," Feb 8-15 2016, May/June 2016 SkyNews magazineM35 is the large prominent star cluster near the centre of the field. It's almost the size of the full moon in the sky and is about 2,800 light years distant. To its lower left is [...]

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The Double Cluster (2015)

Ron Brecher — Sun, 10 May 2015 20:05:21 +0000

The Double Cluster (2015) Click image for full size version May 10, 2015, published in Chinese National Astronomy Magazine, Sept. 2015 There are two reasons for me posting this image of the Double Cluster from 2011 now: First, all of the objects I've imaged lately have been rather bland visually: faint galaxy clusters and sparse globulars. [...]

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