Open Cluster

/Open Cluster

NGC 752

By | 2018-09-22T12:27:08+00:00 22 September 2018|Categories: News, NGC Autumn, Open Cluster|

Heavy processing to remove moonlight background. First entry in the SAA 100 catalog.

Object ID NGC 752
Open Cluster, Andromeda
Mag. 5.7, size 50′
Details 2018-09-21
Bright 90% Moon
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Canon 600D
Exposure(s) 10x40s, ISO 800, darks, flats
Capture APT
Processing Nebulosity, Photoshop
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M103 (NGC 581)

By | 2018-09-05T12:20:05+00:00 5 September 2018|Categories: M91+, News, Open Cluster|

Tighter open cluster, quite remote at 8,000 light years away.

Object ID M103 (NGC 581)
Open cluster Cassiopeia
Mag. 7.4, Size 6′
Details 2018-09-08
Not very transparent.
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guiding c80ED, ASI 290MC
Camera Canon 600D
Exposure(s) 10x60s, darks and flats
Capture APT, PHD
Processing Nebulosity, Photoshop
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M39 (NGC 7092)

By | 2018-09-05T12:17:04+00:00 5 September 2018|Categories: M31-60, News, Open Cluster|

Nice wide open cluster with a deep Milky Way background too.

Object ID M39 (NGC 7092)
Open cluster Cygnus
Mag. 4.6, Size 32′
Details 2018-09-08
Not very transparent.
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guiding c80ED, ASI 290MC
Camera Canon 600D
Exposure(s) 10x60s, darks and flats
Capture APT, PHD
Processing Nebulosity, Photoshop
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M45 Pleiades

By | 2017-12-20T16:09:01+00:00 16 December 2017|Categories: M31-60, News, Open Cluster|

A new combination tonight.

Object ID M45, Pleiades
Details Open Cluster, Taurus
Mag. 1.6, Size 110′
Telescope C80ED @ f5.6 (x0.75 reducer)
Camera Atik 460EX (-15C) and SX filter wheel
IDAS P2 LPR filter
Exposure(s) L 10x60s 1×1, RGB 10x60s each 2×2
darks, no flats or bias
Capture APT unguided
Processing Stacked in Nebulosity, processed in Photoshop
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Double Cluster in Perseus NGC 869 and 884

By | 2018-09-09T20:14:14+00:00 10 December 2017|Categories: Caldwell, Deep Sky, News, NGC Winter, Open Cluster|

First image using the C80ED for a long time.

Object ID Caldwell 14, NGC 869 and 884
Details Open Clusters, Perseus
Date/Time 2017-12-10 19:41 – 20:01 UT
Telescope C80ED @ f7.5
IDAS P2 LPR filter
Camera Canon 600D
Exposure(s) 30x30s lights, 10x30s darks
ISO 1600
Capture APT, unguided
Processing Stacked in Nebulosity, processed in Photoshop and Lightroom

 

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Cone Nebula and Christmas Tree Cluster

By | 2017-02-01T09:35:27+00:00 30 January 2017|Categories: Nebula, News, NGC Winter, Open Cluster|

NGC 2264
Star forming nebula and Open cluster, Monoceros
Mag 3.9, size 20′
2017-01-29
200mm f8 RC at f6 (Revelation x0.75 reducer)
Piggyback guiding with 70mm f/7 refractor
L 5×240s 2×2, RGB 5×120s 4×4 Darks Bias Flats
Atik 460EX (-25C), LRGB filters, IDAS P2 LPR filter
Captured in APT, Processed in Nebulosity3, PS CC, LightRoom

Bad planning in that the object went behind the observatory roof after only 5 sets of exposures. Not great but better than expected though.

Good quality flats make such a huge difference. Much easier to process, especially when using the reducer.

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NGC 663 (C12)

By | 2015-10-10T12:27:02+00:00 2 October 2014|Categories: Caldwell, News, NGC Autumn, Open Cluster|

Open Cluster, Cassiopeia
Mag 7.1 Size 916′
2014-10-01
200mm f8 RC, piggyback guiding C80ED
L 8×120 2×2, RGB 5×120 3×3
Atik 460EX (-10C), LRGB filters, Lumicon DS filter
Captured in APT, Processed in Nebulosity, PS CC

First chance to try out the new 460EX properly.

A “mucky” night with low transparency. Lots of star bloat but the camera has almost no noise at -10C. Processing still needs some work. Too many very red stars. Could be caused by the DS filter?

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NGC 7243 (C16)

By | 2017-01-31T10:52:43+00:00 10 October 2013|Categories: Caldwell, Deep Sky, News, NGC Autumn, Open Cluster|

Open Cluster, Lacerta
Mag 6.4 Size 21′
2013-010-10
200mm f5 Newtonian MPCC, piggyback guiding C80ED
15×60 10×180 10×90 ISO 1600, darks
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5

Not transparent enough tonight to image any galaxies (tried M33 but the image fogged after 2 minutes) or nebulae so a new open cluster for me.

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NGC 7789 White Rose Cluster

By | 2017-01-31T10:52:44+00:00 5 October 2012|Categories: Finest NGC, News, NGC Autumn, Open Cluster|

Open Cluster, Cassiopeia
Mag 6.7 Size 16′
2012-10-5
200mm f8 RC, OAG
14x120s ISO 800, darks, flats
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5
I came across this one by accident. A lovely open cluster. 

NGC 7789 is an open cluster in Cassiopeia that was discovered by Caroline Herschel in 1783. Her brother William Herschel included it in his catalog as H VI.30. This cluster is also known as “The White Rose” Cluster or “Caroline’s Rose” Cluster because when seen visually, the loops of stars and dark lanes look like the swirling pattern of rose petals as seen from above. Wikipedia

 

 

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