Globular Cluster

/Globular Cluster

M92 (NGC 6341)

By |2020-05-05T16:52:38+00:005 May 2020|Categories: Globular Cluster, M91+, News|

240s exposures in each of RGB this time instead of my usual 180s. Strong moonlight though but APP dealt with the gradients pretty well. Much deeper into the fainter stars.

Object ID M13 Globular, Hercules
NGC 6341
Details Mag 6.3 Size 14′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 5x240s ea RGB
draks, flats, bias
Capture APT
Processing APP, Photoshop
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Deeper version of M13

By |2020-05-03T11:30:46+00:003 May 2020|Categories: Globular Cluster, M1-30, News|

Decided to try 240s exposures in each of RGB this time instead of my usual 180s (chosen to balance detail and LP) and it seems to have worked well, especially since there only 5 subs of each colour. Much deeper into the fainter stars too.

Object ID M13 Great Globular, Hercules
NGC 6205
Details Mag 5.8 Size 16.6′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 5x240s ea RGB
draks, flats, bias
Capture APT
Processing APP, Photoshop
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M5 (NGC 5904)

By |2020-04-16T11:45:09+00:0016 April 2020|Categories: Globular Cluster, M1-30, News|

A new globular for me and constellation Serpens

Object ID M5, NGC5904
Details Globular Cluster, Serpens
Mag. 5.95
Size 23′
2020-04-15 23:54 UT ->
Seeing very good
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 10x180s each RGB
darks, flats, bias
Capture APT
Processing APP, Photoshop
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M92 RGB

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
Hercules
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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M15

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′
2010-08-15
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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