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NGC 7635 Bubble Nebula (C11) with 460EX

2017-01-31T10:52:42+00:0012 October 2014|Caldwell, Nebula, News, NGC Autumn|

First real LRGB image with the new 460EX. Still need to improve processing. I have some Ha from previous night to add in too but not sure how to do it.

Emission nebula, Cassiopeia
Mag. 10 Size 15’x8′
2014-10-12
200mm f5 newtonian, piggyback guiding C80ED
L: 5×180 (1×1) RGB 5×120 (2×2) each
Atik 460EX (-15C), LRGB filters, MPCC, Lumicon DS filter
Captured in APT, Processed in Nebulosity, PS CC

NGC 663 (C12)

2015-10-10T12:27:02+00:002 October 2014|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?

Cocoon from multiple dates and telescopes

2017-01-31T10:52:42+00:006 September 2014|Caldwell, Nebula, News, NGC Summer|

First successful attempt at using different focal ratios. Not bad!
Using subs from 200mm f/5 newtonian and 2 different sessions with the RC8.

200mm f/5 newtonian 10x180s 4x240s, darks, flats,  ISO 800 2008-08-19
200mm f/8 RC 2×240, darks, flats ISO 1600 2012-09-16
200mm f/8 RC 10×180, 20×240, darks, ISO 1600 2014-08-26

And this is what the stack looked like:

overlap

NGC 7243 (C16)

2017-01-31T10:52:43+00:0010 October 2013|Caldwell, Deep Sky, News, NGC Autumn, Open Cluster|

Open Cluster, Lacerta
Mag 6.4 Size 21′
2013-010-10
200mm f5 Newtonian MPCC, piggyback guiding C80ED
15×60 10×180 10×90 ISO 1600, darks
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5

Not transparent enough tonight to image any galaxies (tried M33 but the image fogged after 2 minutes) or nebulae so a new open cluster for me.

IC 5146 Cocoon Nebula (C19)

2014-09-06T14:04:31+00:0014 August 2012|Caldwell, Nebula, NGC Summer|

Reflection/emission nebula, Cygnus
Caldwell 19, Finest NGC 99b, SAC110 45
Mag. 10, Size 12’x12′
2012-08-08
200mm f5 Newtonian MPCC Guided
Canon EOS 350D Modded, Astronomik CLS
10x180s 4x240s, darks, flats,  ISO 800
Captured in APT 1.93
Processed in Nebulosity and PS CS5
Need more subs as sky lost transparency.

NGC 2237 Rosette Nebula (NGC 2244 / C49)

2015-12-11T15:52:55+00:0023 January 2012|Caldwell, Finest NGC, Nebula, News, NGC Winter, Open Cluster|

C49 Emission Nebula, Monoceros
Mag 9.0 Size 1.3°
NGC 2244, C50 Open Cluster inside nebula
Mag 4.8 Size 24′
2012-01-23
200mm f5 Newtonian MPCC Guided
Canon EOS 350D modded, Astronomik CLS
10x120s, 4x180s darks, flats, ISO 800
Captured in APT, Processed in Nebulosity, PS CS5 and Adobe Lightroom
Lost some subs due to clouds. Need more subs.

NGC 7635 Bubble Nebula (C11)

2017-01-31T10:52:45+00:0029 September 2011|Caldwell, Finest NGC, Nebula, News, NGC Autumn|

Emission nebula, Cassiopeia
Mag. 10 Size 15’x8′
2012-09-12
200mm f8 RC
10x180s, 7x240s ISO 800, darks, flats
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5
Second light with RC8. Some camera misalignment so star trailing on the RHS.

NGC 7635 Closeup
NGC 7635

2011-09-28
200mm f5 Newtonian MPCC Guided
Canon EOS 350D modded, Astronomik CLS
10x240s 19x180s, darks, flats,  ISO 800
Captured in APT
Processed in Nebulosity and PS CS5

“NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The “bubble” is created by the stellar wind from a massive hot, 8.7 magnitude young central star, the 15 ± 5 M? SAO 20575 (BD+60 2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by Friedrich Wilhelm Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.”
Wikipedia

 

NGC 6960 Western Veil (C34) Reprocessed 2017-03-28

2017-03-31T15:55:30+00:0030 March 2017|Caldwell, Finest NGC, Nebula, News, NGC Summer|

Supernova remnant, Cygnus (“Witch’s Broom”)
Caldwell 34, Finest NGC 99a, SAC110 44
Size 70’x6′
2011-09-20
200mm f5 Newtonian MPCC Guided
Canon EOS 350D MODDED, Astronomik CLS
5x240s 15x180s, darks, flats,  ISO 800
Captured in APT
Processed in Nebulosity and PS CS5

First light with the modded 350D. So much easier to capture and process the nebulosity.

Reprocessed in 2017-03-28 with Adobe Lightroom.

Original image:

NGC 6992/6995 Eastern Veil (C33) – reprocessed

2017-03-06T11:19:03+00:0021 February 2017|Caldwell, Finest NGC, Nebula, News, NGC Summer|

Supernova remnant, Cygnus
Caldwell 33, Finest NGC 99b, SAC110 45
Size 60’x8′
2011-08-24
200mm f5 Newtonian MPCC Guided
Canon EOS 350D, Astronomik CLS
5x240s 20x180s, darks, flats,  ISO 800
Captured in APT
Processed in Nebulosity and PS CS5
2017-02-21 Re-processed in Lightroom CC

NGC 6995 is the irregularly shaped nebulosity in the left of the image, and NGC 6992 is the curved arc in the right of the image.

An incredibly rare and clear night with the Milky Way easily visible.
Original image:

NGC 457 (C13)

2013-10-11T08:38:57+00:0031 October 2010|Caldwell, Finest NGC, News, NGC Autumn, Open Cluster|

Open Cluster, Cassiopeia
Mag 6.4, Size 13′
2010-10-30
200m f5 Newtonian, Canon 350D, SW LPR, MPCC
10x60s subs, darks, ISO 800
Captured in APT
Processed in Nebulosity and PS CS5
Some slight elongation of stars at left side is due to camera alignment and not coma (which has been resolved by the MPCC).