Globular Cluster

/Globular Cluster


By |2019-12-05T16:06:47+00:005 December 2019|Categories: Globular Cluster, News, NGC Summer|

Because sky conditions were very poor I went back to globulars as nebulosity can easily disappear in LP and fog. APP got rid of the massive gradients and LP quite well I think.

Object ID M92 (NGC6341)
Details Size 14′, Mag. 6.3
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX -15C
Exposure(s) 10x180s ea RGB 1×1
darks, flats, bias
Capture APT
Processing APP, Photoshop
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M3 (NGC 5272) RGB just a few exposures

By |2019-03-14T09:57:11+00:0014 March 2019|Categories: Globular Cluster, M1-30, News|

Just a few exposures between gaps in the clouds. L not used because of dust on the filter.

Object ID M3 (NGC 5272)
Details Canes Venatici
Mag. 6.2, Size 18′
Telescope 203mm RC8 at f8
Camera Atik 460Ex @-20C
Badder RGB filters
IDAS P2 LP filter
Exposure(s) R,G 2x120s, B1x120s, 2×2
Capture APT, PHD2
Processing Nebulosity 4, Photoshop
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By |2018-09-05T12:05:49+00:005 September 2018|Categories: Globular Cluster, M1-30, News|

First proper imaging session of the season. New mount (EQ6-R) is guiding well with an RMS error of about 0.6″, Coma corrector is working well too. Stars are sharp right to the edges.

Object ID M15 (NGC 7078)
Details 2018-09-08
Not very transparent and the remnants of twilight too.
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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M71 (NGC 6838)

By |2013-11-03T16:44:11+00:0029 August 2009|Categories: Globular Cluster, M61-90|

Globular Cluster, Sagitta
Mag 8.2 Size 7.2′
200mm f5 Newtonian, Canon 350D
Guided, SW LPR filter, MPCC
3x120s subs before clouds
Processed in Nebulosity and  PhotoShop CS5
First use of new Skywatcher LPR filter.
Doesn’t really look like a globular – in fact it wasn’t classified as one for a while.

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M53 (NGC 5024)

By |2014-03-24T10:13:15+00:0018 April 2010|Categories: Globular Cluster, M31-60|

Globular Cluster, Coma Berenices
Mag 7.6, Size 13′
200m f5 Newtonian, Canon 350D, DS filter, Guided
10x60s subs, ISO 800
Processed in Nebulosity and PS CS3

200mm f8 RC, piggyback guiding C80ED
20×180 5×240 ISO 1600, darks duff so used old ones
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5

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