Open Cluster

/Open Cluster

M44 Praesepe / Beehive cluster

By |2019-01-30T14:43:15+00:007 January 2019|Categories: M31-60, News, Open Cluster|

Poor night of transparency and seeing so just got this in the passing. Lots of sky fog that got processed out.

Object ID M44 / Praesepe / Beehive cluster, Cancer
Details 2019-01-07
Telescope 250mm f4.8 Newtonian, MPCC
Camera Atik 460EX
Baader RGB filters
Exposure(s) 10x60s each RGB 2×2
Darks
Capture APT
Processing Nebulosity, Photoshop
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NGC 2264 Christmas Tree Cluster narrowband

By |2019-01-30T13:16:31+00:0030 January 2019|Categories: HOYS-CAPS, Nebula, News, NGC Winter, Open Cluster|

After a HOYS-CAPS session added narrowband. Rat’s head in there?
No more MPCC and stars are much sharper at the edges.

Object ID NGC 2264, Christmas Tree Cluster
Details 2019-01-29
Telescope 250mm f4.8 Newtonian, MPCC
Camera Atik 460EX @-20C
Baader Ha, OIII, SII filters
Exposure(s) 10x300s 2×2 each
Darks
Capture APT
Processing Nebulosity, Photoshop
SHO colour mapping
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NGC 752

By |2018-09-22T12:27:08+00:0022 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+00:005 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+00:005 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+00:0016 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+00:0010 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+00:0030 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+00:002 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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