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NGC 6888 Crescent Nebula Ha

By |2020-05-17T12:25:19+00:0017 May 2020|Categories: Nebula, News, NGC Summer|

Just Ha possible because of twilight and moonlight

Object ID NGC 6888 Crescent Nebula, C27
Details 2020-05-08 22:44 UT –
Mag 7.4, size 18’x12′
Cygnus
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 15x300s Ha 1×1
darks, flats, bias
Capture APT
Processing APP, Photoshop

SN2020hvf in NGC3643

By |2020-05-11T23:16:06+00:0010 May 2020|Categories: News, Supernova|

Quick image of supernova SN2020hvf and simple photometry in Muniwin. Gives an R (TR) magnitude of 12.38

Object ID SN2020hvf Type Ia Supernova
in NGC3643
Details 2020-05-10 22:42UT
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 120s 2×2 Baader TR filter
Capture APT
Processing Nebulosity, Muniwin
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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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XO-1b Exoplanet transit for ExoClock

By |2020-04-23T20:44:04+00:0023 April 2020|Categories: Exoplanet, News|

Pretty good seeing but data not as good as expected. Some data lost at a critical moment early on due to a failure in file transfer from the observatory computer.

Object ID XO-1b Exoplanet
Details 2020-04-20 22:01 UT ->
Observed mid-time 2.5 minutes before predicted
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 215x60s TR filter
Capture APT
Processing ExoClock software HOPS
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M101 (NGC 4321)

By |2020-04-19T19:59:23+00:0017 April 2020|Categories: Galaxy, M91+, News|

Added twice as many frames as normal – still noisy. Probably need longer exposures. Bad gradients needed a lot of work in APP.

Object ID M101, NGC 4321
Details Spiral galaxy, Ursa Major
Mag. 9.5
Size 7.4’x6.3′
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 20x180s each RGB
darks, 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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Medusa nebula HOO

By |2020-04-16T11:40:30+00:0016 April 2020|Categories: News, NGC Winter, Planetary Nebula|

Done in RGB before, narrowband this time.

Object ID Medusa nebula
PK205+14.1, Abell 21, Sharpless 2-274
Details Planetary nebula, Gemini
Surface brightness about 16
20-04-13 22:06 UT ->
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Exposure(s) 10x300s each Ha, OIII
Capture APT
Processing APP, Photoshop
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Mizar and Alcor RGB

By |2020-04-12T17:03:46+00:0012 April 2020|Categories: News, Other|

Something to image in the strong moonlight. Mizar (Zeta Ursae Majoris) has 2 partners: the brighter one you can see is 14 arcsecs away at mag 4 but there’s also one at 0.04 arcsecs separation and mag. 2 that we can’t see separately. Alcor is a binary too with an 8th magnitude red dwarf companion, 1 arcsec away from the primary.

Object ID Mizar, Alcor
Details 2020-04-06 21:03:20UT
Telescope 250mm f4.8 Newtonian
Camera Atik 460EX @-15C
Baader RGB filters
Exposure(s) 3x30s ea RGB 1×1
Capture APT
Processing APP, Photoshop
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NGC188 (C1)

By |2020-04-07T21:23:16+00:007 April 2020|Categories: Caldwell, News, NGC Winter, Open Cluster|

Never noticed this one before. Very close to the pole so easy guiding as nothing moves very much round there.

Object ID NGC188, Caldwell 1
Open Cluster, Cepheus
Mag. 10
Size 11′
Details 2020-04-06 22:42 UT
Telescope 250mm f4.8 OO Newtonian
Camera ATIK 460EX @-15C
Exposure(s) 3x180s 1×1 TR, 2x180s 1×1 TG, TB
Darks, flats, bias
Capture APT
Processing APP, Photoshop
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