News

/News

Bubble nebula project 2 (NGC 7635)

By |2018-10-09T13:00:28+00:0024 September 2018|Categories: Caldwell, Nebula, News, NGC Autumn|

Added 18 frames of Ha. Much more detail and less noise.

Object ID NGC 7635 Bubble nebula (C11)
Mag. 10, Size 15’x8′
H II region emission nebula
Cassiopeia
Details 2018-09-23 21:15-23:07 UT
Bright moonlight
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader 7nm Ha filter
Exposure(s) 18 x 300s
darks, flats
Capture APT
Processing Nebulosity 4, Photoshop

I did take some RGB colour but as you can see below there is a huge dust mark in it. Normally not a problem as flats will remove it. But when I went to create flats, the dust had disappeared so very difficult to remove. Unless it’s not dust but an out of focus reflection of the bright star? If it is I’ve never seen anything like it in my images before.

Comments Off on Bubble nebula project 2 (NGC 7635)

Bubble nebula project (NGC 7635)

By |2018-09-23T16:38:33+00:0023 September 2018|Categories: Caldwell, Nebula, News, NGC Autumn|

One of my favourite objects. Trying to do this over a series of nights. Ha first of all then add colour channels. Only 2x300s exposures in Ha so far.

Object ID NGC 7635 Bubble nebula (C11)
Mag. 10, Size 15’x8′
H II region emission nebula
Cassiopeia
Details 2018-09-22 21:40-21:45 UT
Bright moonlight
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Guided
Camera Atik 460EX, Baader 7nm Ha filter
Exposure(s) 2 x 300s
darks, flats
Capture APT
Processing Nebulosity 4, Photoshop
Comments Off on Bubble nebula project (NGC 7635)

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
Comments Off on NGC 752

M40 (Winnecke 4)

By |2018-09-14T22:06:56+00:0014 September 2018|Categories: M31-60, News|

Messier 40, also known as Winnecke 4. Basically it’s a double star, and an optical double at that!

It was discovered by Messier while he was looking for a nebula reported in the area by Johannes Hevelius. He couldn’t find it so he catalogued this double star instead. Most have been a slow night or something…

And why did I bother imaging it? Well it was in the only patch of clear sky there was and I only had a few minutes before it clouded over. Still, it’s another Messier object to add to my list 🙂

Object ID M40 / Winnecke 4
Double star, Ursa Major
Mag. 8.4, Size 0.8′
Details 2018-09-14 through gaps in cloud
Telescope 200mm f5 Newtonian, MPCC
IDAS P2 LPR filter
Camera Canon 600D
Exposure(s) 5x20s darks, flats
Capture APT
Processing Nebulosity 4, Photoshop
Comments Off on M40 (Winnecke 4)

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
Comments Off on M103 (NGC 581)

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
Comments Off on M39 (NGC 7092)

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
Comments Off on M15

Albireo – now it’s officially NOT a binary

By |2018-08-24T09:45:34+00:0024 August 2018|Categories: News, Other|

Everyone’s favourite double star is now officially not a binary system according to the latest GAIA data release. This is just to show that I don’t care – it’s still the best.

Object ID Albireo, Beta 1,2 Cygni
Details 2018-08-23 20:57 – 21:00 UT
Telescope 200mm Newtonian f5
Camera ZWO ASI290MC, IR/UV block
Exposure(s) 21 x 5s with 5s delay between
Capture SharpCap 3.1
Processing Nebulosity 3, Photoshop
Comments Off on Albireo – now it’s officially NOT a binary

Comet 21P/Giacobini-Zinner brightening and tail developing

By |2018-08-17T10:46:06+00:0017 August 2018|Categories: Comets, News|

Tail starting to develop and definitely getting brighter

Object ID 21P/Giacobini-Zinner
Details 2018-08-16 22:09:30 – 22:23:23 UT
Telescope 200mm Newtonian f5
Camera ZWO ASI290MC
Exposure(s) 20 x 15s, 30s delay between exposures
Capture SharpCap
Processing Nebulosity, Photoshop
Comments Off on Comet 21P/Giacobini-Zinner brightening and tail developing

Comet 21P/Giacobin-Zinner animation

By |2018-08-18T16:27:51+00:004 August 2018|Categories: Comets, News|

Moving through the constellation of Cassiopeia

Object ID 21P/Giacobini-Zinner
Details 2018-08-03 22:12 – 22:25 UT
Approx. mag. 9
Telescope 200mm Newtonian f5
Camera ZWO ASI 290MC
Exposure(s) 20 x 10s exposures, 30seconds apart
Capture SharpCap
Processing Photoshop
21P gif animation
Comments Off on Comet 21P/Giacobin-Zinner animation