Tag Archives: the Pacman Nebula

NGC 281 in the constellation of Cassiopeia

d4c27289e5864ced0db0af7e842c049d.1824x0_q100_watermark

NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.

The nebula was discovered in August 1883 by E. E. Barnard, who described it as “a large faint nebula, very diffuse.” The multiple star HD 5005, also called \beta1, was discovered by S. W. Burnham. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 seconds of arc. There has been no appreciable change in this quintuple system since the first measurements were made in 1875.

Imaging telescopes or lenses: GSO RC8
Imaging cameras: Canon EOS 450D / Digital Rebel XSi / Kiss X2
Mounts: Sky-Watcher NEQ6
Guiding telescopes or lenses: Sky-Watcher Equinox 80
Guiding cameras: lacerta mgen2
Focal reducers: AP CCDT67
Software: photoshop, PixInsight, Iris
Accessories: Astronomik ha filter 12nm (EOS clip type), astronomik CLS filter (EOS Clip)
Dates: July 9, 2012, Oct. 30, 2012
Frames:
Astronomik Clip CLS: 35×300″ ISO400 bin 1×1
Astronomik H-alpha 12nm: 10×300″ ISO400 bin 1×1
Integration: 3.8 hours
Darks: ~22
Flats: ~38
Bias: ~35

Author:  Philippe Mingasson
AstroPhotography of the day by SPONLI 29 July 2014

NGC 281: the Pacman Nebula in Cassiopeia

c3580bfedd5e49c846cb830203961cf4.1824x0_q100_watermark_watermark_opacity-10_watermark_position-4_watermark_text-Copyright Pekka Simell

NGC 281 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to thevideo game character.

The nebula was discovered in August 1883 by E. E. Barnard, who described it as “a large faint nebula, very diffuse.” The multiple star HD 5005, also called \beta1, was discovered by S. W. Burnham. It consists of an 8th-magnitude primary with four companions at distances between 1.4 and 15.7 seconds of arc. There has been no appreciable change in this quintuple system since the first measurements were made in 1875.

The nebula is visible in amateur telescopes from dark sky locations.

Imaging cameras: Atik 383L+
Mounts: Astro-Physics Mach 1 GTO
Guiding telescopes or lenses: Teleskop Service 10″ Newton F4.8
Guiding cameras: Orion StarShoot Autoguider
Focal reducers: ASA 2″ x 0,73 Corrector/Reducer 2KORRR
Software: PixInsight PixInsinght 1.8 RC7
Filters: Baader Planetarium Baader 2″ Narrowband Set
Dates: Sept. 5, 2013, Sept. 6, 2013, Nov. 6, 2013
Frames:
Baader Planetarium Ha 7nm: 22×400″ -20C bin 1×1
Baader Planetarium OIII 8.5nm: 20×400″ -20C bin 2×2
Baader Planetarium SII 8nm: 20×400″ -20C bin 2×2
Integration: 6.9 hours
Darks: ~11
Flats: ~20
Flat darks: ~20
Bias: ~20

Autor: Pekka Simell

AstroPhotography of the day by SPONLI

15 January 2014

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.

Nebulas in Hydrogen Alpha

@ Vincent Vegabort

NGC 281: the Pacman Nebula

f0d102afcd150866594a88c7263e8a6e.1824x0_q100_watermark_watermark_opacity-10_watermark_position-2_watermark_text-Copyright Pasquale Costantino
NGC 281
 is an H II region in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to thevideo game character.

Imaging telescopes or lenses: GSO RC 8″ f/8
Imaging cameras: ATIK 11000c
Mounts: Gemini G42 Observatory+
Guiding telescopes or lenses: Celestron 80/600
Guiding cameras: Atik Titan
Focal reducers: Teleskop-Service TS 2″ Flattener
Software: Astroart 5
Filters: IDAS LPS-V4
Resolution: 3469×2197
Dates: Dec. 19, 2013
Frames: 35×300″
Integration: 2.9 hours

Autor: Pasquale Costantino

25 December 2013

We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.