David's Astronomy Pages (Stellar & Deep
Sky)
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Open Clusters This page summarises observations and images of open star clusters.
Open clusters are collections of stars, the best known of which is M45 or the Pleiades.
| M45, Pleiades (Taurus) | ||
| Photo (1999) | CCD Mosaic (2003) | |
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Photo,
300mm, f/5.6, Fujicolor 200, 7 1/2 minutes exposure (Image enhanced & cropped) 1999-Dec-06 |
Mosaic 8x9 CCD frames, 10 sec exposures 76 x 55 arc mins (1.25 x 0.92 arc deg) 2003-01-04 21:10 to 21:48h UT (#37250-321) |
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Another famous set of open clusters is the Double Cluster in Perseus
| Perseus Double Cluster (NGC 884 & 869) | ||
| Photo (1999) | CCD Mosaic (2003) | |
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Photo, 1999-Dec-06 300mm, f/5.6, Fujicolor 200, 11mins exposure (Image enhanced & cropped) |
Mosaic 7x6 CCD frames, 20 sec exposures taken on 2003-01-04 23:03 to 23:32h UT (#37454-95) 69 x 34 arc mins |
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| M11 (Scutum) |
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CCD image, 6 x 10 sec exposures (median combine) 2003-08-05 21:46 h UT (#49032-49037) 11.4 x 7.6 arc mins |
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| M26 (Scutum) |
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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) 11.4 x 7.6 arc mins |
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| M29 (Cygnus) |
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| CCD Image 3 x 60 sec exposure (median combine), 2x2 binning, C Filter 2006-04-28 00:57 h UT (#118227-29) |
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| M34 Open Cluster (Perseus) |
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| 2002-09-11 03:44 to 03:50h UT Mosaic of CCD Images, 5 sec exposures (4x4 Mosaic) 36.9 x 21.3 arc min (#24006-21) [ Click on Image for Full Size ] |
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| Mosaic of M35 (right/centre) & NGC 2158 (lower right) (Gemini) |
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Mosaic 5x6 CCD frames, 20 sec exposures taken on 2003-01-04 23:33 to 23:54h UT (#37250-321) 50 x 39 arc mins |
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| M36 (Auriga) |
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| 2002-02-16 CCD Image, 3x3 Mosaic, 15 sec exposures (#17043 et al) 29.3 x 16.8 arc min (Mosaic Construction details) |
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M36 (Auriga) |
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| CCD Image Mosaic (half scale) 60 sec exposure (2x3 frames), 2x2 binning, C Filter 2006-01-31 22:47h UT (#112172-77) (Full Size Mosaic) |
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M36 (Auriga) |
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| CCD Image Mosaic (central portion) detail as above (Full Size Mosaic) |
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M37 (Auriga) |
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| CCD Image Mosaic (half scale) 60 sec exposure (2x3 frames), 2x2 binning, C Filter 2006-01-31 22:38h UT (#112165-71) (Full Size Mosaic) |
| M37 (Auriga) |
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Approximate Colour
CCD Image Luminance : 3 x 20s (C Filter), Red 3x30s (av, R Filter), Green 2x20s (av, V Filter), Blue 2x60s (av B Filter) 2005-09-30 22:30h UT (#95064-74) |
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M38 (Auriga) |
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| CCD Image Mosaic (half scale) 60 sec exposure (3x3 frames), 2x2 binning, C Filter 2006-01-31 23:00h UT (#112179-87) (Full Size Mosaic) |
| M38 (Auriga) |
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| 2002-02-16 CCD Image, 5x6 Mosaic, 15 sec exposures (#17060 et al) 48.3 x 34.3 arc min (larger, full size) (Mosaic Construction details) |
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| M44 |
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| 2002-04-08 21:23hUT CCD Image, 5x30 sec exposure 1.3 x 2.0 arc deg (#20021-25) 200mm focal length lens |
| M44 (Cancer) |
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Central portion of a CCD Image Mosaic (8x5, 40 Frames) 20 sec exposure, C Filter 2005-10-09 03:50 h UT (#99115-59 {S98}) (Full Extent (1/2 size) / Original Full Size) |
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| Mosaic of M45 (Taurus) |
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Mosaic 8x9 CCD frames, 10 sec exposures taken on 2003-01-04 21:10 to 21:48h UT (#37250-321) 76 x 55 arc mins (1.25 x 0.92 arc deg) |
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| M48 (Hydra) |
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CCD Image 3 x 30 sec (median combine), C Filter 2004-12-08 00:59 h UT (#78083-85) |
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| M50 (Monoceros) |
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CCD Image 3 x 30 sec (median combine), C Filter 2004-12-08 00:55 h UT (#78079-81) |
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| M52 (Cassiopeia) |
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CCD Image Mosaic (2x2 frames) 20 sec exposure, R filter 2005-09-02 22:07 h UT (#93029-32) |
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| M67 (Cancer) |
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Colour CCD Image, Red 20s, Green 20s, Blue 30s 2004-02-19, 22:42 to 22:44 h UT (#58208-10) |
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M67 (Cancer) |
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| CCD Image Mosaic (central portion) 60 sec exposure (3x3 frames), 2x2 binning, C Filter 2006-02-03 03:09h UT (#113115-23) (Full Size Mosaic) |
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M67 (Cancer) |
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| CCD Image Mosaic (half scale) 60 sec exposure (3x3 frames), 2x2 binning, C Filter 2006-01-31 23:35h UT (#112189-97) (Full Size Mosaic) |
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| M71 (Sagitta) |
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CCD Image, 3 x 10s exposure 2003-07-13 00:44h UT (#45045-47) 11.4 x 7.6 arc mins |
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| M73 (Aquarius) |
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CCD Image 5 x 20 sec exposure (average), clear filter 2005-08-14 22:40 h UT (#92120-24) |
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| M103 (Cassiopeia) |
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Central portion of CCD Image Mosaic (3x3 frames) 20 sec exposure, C filter 2005-09-02 22:32 h UT (#93039-49) (Full Size) |
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NGC 457 (Cassiopeia) |
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| CCD Image 3 x 1 min exposure (average combine), 2x2 binning, C Filter 2006-01-30 23:39h UT (#111135-37) |
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NGC 559 (Cassiopeia) |
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| CCD Image 3 x 1 min exposure (median combine), 2x2 binning, C Filter 2006-01-30 23:35h UT (#111131-33) |
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NGC 659 (Cassiopeia) |
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| CCD Mosaic (2 x 3), 75% size 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:18h UT (#110080-85) |
| Detailed Image of NGC 659 |
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| CCD Image (75% size) 2 x 2 min (average combine), 1x1 binning, clear filter 2006-01-11 22:18h UT (#110073-74) |
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NGC 663 (Cassiopeia) |
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| Central portion of CCD Mosaic (2 x
3) 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:35h UT (#110086-91) [ Full Size ] |
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NGC 743 (Cassiopeia) |
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| CCD Mosaic (2 x 3), 75% size 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:41h UT (#110092-97) [ Full Size ] |
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| NGC 744 (Perseus) |
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CCD Image, 10s exposure 2003-12-07 21:33 h UT (#55077) 11.6 x 7.8 arc sec |
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| NGC 1245 (Perseus) |
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Composite Colour CCD Image Luminance (C av 3x30s), Blue 300% (B av 2 x 60s), Green (V av 2 x 30s), Red (R av 2 x 30s) 2004-09-19 00:25 h UT (#72091-101) |
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| NGC 1605 (Perseus) |
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CCD Image 3 x 60s exposure (average combine), C Filter 2005-09-02 23:31 h UT (#93096-98) (Full Size Image) |
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NGC 1664 (border of Auriga & Perseus) |
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| CCD Image Mosaic (2x3 frames, 50%
size) 60 sec exposure, 2x2 binning, C Filter 2006-02-10 23:11h UT (#114223-46) [ Full Size Mosaic ] |
| NGC 1664 - detail, approximate colour |
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| Approximate Colour CCD Image -
central portion of 2x3 mosaic Red - 60sec (R Filter), Green - 60sec (V Filter), Blue - 60s (B Filter), 2x2 binning 2006-02-10 23:11h UT (#114223-46) [ Full Size Mosaic ] |
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| NGC 1857 (Auriga) |
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CCD Colour Image, Red 60s, Green 60s, Blue 60s, Clear 60s (LRGB combine) 2004-03-28 21:55 h UT (#64034-37) |
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| NGC 1893 - left centre (Auriga) Mosaic covering 59 x 48 arc min Nebulosity associated with cluster (IC410) is not visible due to short exposure |
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CCD Mosaic [ 4 x 5 frames], 30 sec exposures, 30% resize 2004-03-21 22:13 to 22:26 h UT (#63060-79) |
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| NGC 1931 (Auriga) |
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CCD Image 5 min, C Filter (autoguided) 2004-11-18 20:43 h UT (#74027) |
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False Colour
CCD Image (details above) Logarithmic Scaling |
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| NGC 1960 / M36 (Auriga) |
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CCD Image, 30s exposure,
C Filter 2004-09-19 01:07 h UT (#72121) |
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| NGC 1977 (Orion) |
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CCD Image 30 sec exposure, C Filter 2004-12-29 01:03 h UT (#81108) |
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| NGC 2126 (Auriga) |
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CCD Image 5 x 20 sec (average combine), C Filter 2004-11-18 20:20 h UT (#74016-20) |
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NGC 2141 (Orion) |
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| CCD Image 3 x 60s (average combine), clear filter 2006-01-01 23:44h UT (#108009-11) |
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| NGC 2158 |
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Colour CCD Image, Red 2x60s (av), Green 2x60s, Blue 2x90s 2004-02-19, 22:53 to 23:04 h UT (#58216-23) |
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NGC 2420 (Gemini) |
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| CCD Image Mosaic (central portion) 60 sec exposure (3x3 frames), 2x2 binning, C Filter 2006-02-03 02:09h UT (#113074-82) (Full Size Mosaic) |
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| NGC 6802 (in Vulpecula) |
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CCD image, 3 x 20 sec exposures (summed) 2003-08-03 22:42- 22:43 h UT (#48044-46) 11.4 x 7.6 arc mins |
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| NGC 6811 (Cygnus) |
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CCD Image Mosaic (central portion) 20s, clear filter 2005-06-07 00:25 h UT (#88085-95) [ Full Size] |
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NGC 6871 (Cygnus) |
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| CCD Image Mosaic (3 x 4), (50% size) 60s exposure (average combine), 2x2 binning, C Filter 2006-05-12 23:57 hUT (#126106-17) [ Full Size ] |
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NGC 6871 (Cygnus) - detail |
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| Part of CCD Image Mosaic (3 x 4) 60s exposure (average combine), 2x2 binning, C Filter 2006-05-12 23:57 hUT (#126106-17) |
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NGC 6883 (Cygnus) |
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| Part of CCD Image Mosaic (3 x 4), (75% size) 60s exposure (average combine), 2x2 binning, C Filter 2006-05-10 23:25 hUT (#125150-16) [ Full Mosaic/Full Size ] |
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| NGC 6907 (Aquila) |
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CCD Colour Composite, L 1x20s, B 1x60 sec, V 1x30s, R
1x30s 2004-09-02 22:47 to 22:53h UT (#70013-18) |
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| NGC 6910 (Cygnus) (no nebulosity is visible) |
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CCD Image 3 x 60s (average combine), clear filter 2005-06-07 00:45 h UT (#88105-07) |
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NGC 7790 (Cassiopeia) |
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| CCD Image 3 x 30s exposure (average exposure), 2x2 binning, C Filter 2006-08-09 02:27hUT (#133398-406) |
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IC 348 (Perseus) |
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| CCD Image 2 x 60s (average combine), clear filter 2006-01-02 00:17h UT (#108099-103) |
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| Approximate Colour CD Image Luminance : 2 x 60s (C filter), Red : 2 x 60s Blur R filter), Blue 120s Blur (B Filter) Green : 2 x 60s Blur (V Filter) 2006-01-02 00:20h UT (#108099-106) |
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| SAC Biur 13 (Monoceros) Open Cluster - Saguaro Astronomy Club Database |
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CCD Image 60s exposure C Filter 2004-12-19 01:12h UT (#80149) |
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| SAC King 14 (Cassiopeia) |
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CCD Image 3 x 60 sec exposure (average), V filter 2005-08-14 22:40 h UT (#92159-61) |
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SAC Tr 1 (Cassiopeia) |
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| CCD Mosaic (2 x 3), 75% size 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:46h UT (#110098-103) [ Full Size ] |
| Detailed Image of SAC Tr 1 |
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| Central portion of CCD Image 6 x 30sec exposure (average combine), 1x1 binning, C Filter 2006-01-11 22:55h UT (#110106-111) [ Full Size ] |
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| This Web Page: | Open Star Clusters |
| Last Updated : | 2006-08-13 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
