David's Astronomy Pages (Sky Tours)
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Image collection based on the sky tour "Opening up the summer skies" featured in the June 2012 edition of Astronomy Now. Comprising star clusters in Cygnus, Sagiitta, Serpens, Scutum and Sagittarius.
M8 (Sagittarus) |
CCD Image (45% size reduction, cropped) 10 x 15s sec exposure (average combine), 2x2 binning, C Filter 2009-06-25 23:31 h UT (#373033-42) 12" LX200R (at f/5.7) + ST-10XME [ Larger view 70% size ] |
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M23 (Sagittarus) |
CCD Image Mosaic (30% size reduction 20s sec exposure, 2x2 binning, C Filter 2009-05-27 00:02 h UT (#369134-50) 12" LX200R (at f/5.7) + ST-10XME Image at 10 deg above SSE horizon |
M23 - detail central area |
CCD Image (60% size reduction) 4 x 30s sec exposure (average combine), 3x3 binning, C Filter 2009-05-26 23:53 h UT (#369128-32) 12" LX200R (at f/5.7) + ST-10XME Image at 10 deg above SSE horizon |
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M26 (Scutum) |
CCD image, 5 x 20 sec exposures (top - median combine bottom - summed combine) 2003-08-05 21:57 to 21:59 h UT (#49049-49053) Image : 11.4 x 7.6 arc mins 8" LX200 classic + ST-7e |
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M11 (Scutum) |
CCD Image Mosaic, 3x4, (50% size) 30 sec exposure, 2x2 binning, C Filter Cropped 2007-05-20 01:15h UT (#200083-94) [larger image, 70% size] |
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IC 4756 (Sagittarius) (image shows just part of this 40' x 40' cluster) |
CCD Image (50% size) 5 x 30s exposure (average combine), 3x3 binning, C Filter 2017-11-02 19:55h UT (#603113-16) 12" LX200R (at f/10.4) + ST-10XME [ 75% size ] |
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NGC 6791 (Lyra) |
CCD Image (Linear Scale, 75% size) 3 x 30s exposure (average combine), 3x3 binning, C Filter 2010-08-26 21:51hUT (#426057-60) 12" LX200R (at f/9.7) + ST-10XME |
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M39 (Cygnus) |
Central portion of a CCD Image Mosaic (5x3, 15
Frames) 20 sec exposure, R Filter 2005-10-09 03:16 h UT (#99084-98 {S98} ) 8" LX200 classic + ST-7e (Full Size) |
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This Web Page: | Sky Tour: Jun (2) - Summer Star Clusters |
Last Updated : | 2017-11-08 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |