Tag Archives: Bubble Nebula

Bubble Nebula, NGC 7635

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 William Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.

Imaging telescopes or lenses: The Liverpool Telescope

Imaging cameras: IO:O

Software: Photoshop, DeepSkyStacker

Filters: H-Alpha-6566, SDSS-R, Bessell-V

Resolution: 1646×1637

Dates: Sept. 24, 2014

Frames: 45×120″

Integration: 1.5 hours

Avg. Moon age: 29.28 days

Avg. Moon phase: 0.07%

RA center: 350.193 degrees

DEC center: 61.181 degrees

Pixel scale: 0.379 arcsec/pixel

Orientation: -179.949 degrees

Field radius: 0.122 degrees

Locations: Roque de los Muchachos Observatory, Santa Cruz de Tenerife, Spain

Author: Matthew

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Bubble Nebula

NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellationCassiopeia. 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_☉^[4] SAO 20575 (BD+60 2522).^[7] The nebula is near a giant molecular cloudwhich contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.^[7] It was discovered in 1787 by William Herschel.^[5] The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.

Imaging telescopes or lenses: Orion ED80T CF
Imaging cameras: Atik 314L+ Mono
Mounts: iOptron iEQ-45
Software: DeepSkyStacker, PixInsight, Artemis Capture
Filters: Astronomik SII 12nm, Astronomik OIII 12nm, Astronomik H-alpha 12nm
Accessories: kwiq guider mini guide scope
Resolution: 1281×883
Dates: Sept. 3, 2014
Frames: 38×360″
Integration: 3.8 hours
Avg. Moon age: 7.95 days
Avg. Moon phase: 55.99%
RA center: 350.105 degrees
DEC center: 61.158 degrees
Pixel scale: 2.766 arcsec/pixel
Orientation: 177.331 degrees
Field radius: 0.598 degrees

Astrophotography of the day of SPONLI, 05.11.2014

the Bubble Nebula

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 William Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.

With an 8 or 10-inch (250 mm) telescope, the nebula is visible as an extremely faint and large shell around the star. The nearby 7th magnitude star on the west hinders observation, but one can view the nebula using averted vision.[6] Using a 16 to 18-inch (460 mm) scope, one can see that the faint nebula is irregular, being elongated in the north south direction.

Imaging telescopes or lenses: Borg 101 ED
Imaging cameras: QSI 683WSG-8 OAG QSI 683
Mounts: Takahashi EM200 Temma 2 Main
Guiding telescopes or lenses: Borg 101 ED
Guiding cameras: QSI 683WSG-8 OAG QSI 683
Focal reducers: Borg Super reducer f/4
Resolution: 3185×2136
Dates: Oct. 4, 2014
Frames: 30×1200″
Integration: 10.0 hours
Avg. Moon age: 9.75 days
Avg. Moon phase: 74.10%
RA center: 349.961 degrees
DEC center: 61.233 degrees
Pixel scale: 2.695 arcsec/pixel
Orientation: 90.529 degrees
Field radius: 1.436 degrees

Аuthor: Patrick, 06.10.2014

NGC 7635 in the constellation Cassiopeia

NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia.

Amateur observation

With an 8 or 10-inch (250 mm) telescope, the nebula is visible as an extremely faint and large shell around the star. The nearby 7th magnitude star on the west hinders observation, but one can view the nebula using averted vision. Using a 16 to 18-inch (460 mm) scope, one can see that the faint nebula is irregular, being elongated in the north south direction.

Imaging telescopes or lenses: GSO Newton 8″ f/5
Imaging cameras: Canon EOS 350D / Digital Rebel XT
Mounts: Sky-Watcher EQ6 Syntreck
Guiding telescopes or lenses: GSO Viewfinder 8X50
Guiding cameras: Orion SSAG
Software: Iris, PHD guiding, photoshop
Filters: Astronomik CLS CCD Filter
Dates: July 22, 2012
Locations: Perigord
Frames: 53×480″
Integration: 7.1 hours

Author: Fredéric Segato

AstroPhotography of the day by SPONLI
8 Abril 2014

NGC 7635: the Bubble Nebula

The Bubble Nebula 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 windfrom a massive hot, 8.7 magnitude young central star, the 15 ± 5 M_☉ SAO 20575 (BD+60 2522). The nebula is near a giantmolecular 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 William Herschel. The star SAO 20575 or BD+602522 is thought to have a mass of 10-40Solar masses.

Imaging telescopes or lenses: Bresser Messier AR-152S 152/760
Imaging cameras: SBIG ST- 8300M
Mounts: Skywatcher AZ EQ6 GT
Guiding telescopes or lenses: Bresser Messier AR-152S 152/760
Guiding cameras: ALccd5-IIm
Software: Adobe Photoshop CS5
Filters: Baader Planetariun Ha 35nm, Baader Planetariun OIII 8.5nm
Accessories: TS 9mm OAG, Teleskop-Service TS FLAT 2,5

Autor: Petko Marinov

AstroPhotography of the day by SPONLI

22 February 2014

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

NGC 7635: the Bubble nebula

NGC 7635 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 windfrom a massive hot, 8.7 magnitude young central star, the 15 ± 5 M_☉ SAO 20575 (BD+60 2522). The nebula is near a giantmolecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.

Imaging telescopes or lenses: TEC 200 ED
Imaging cameras: Atik 383L+
Mounts: Bauer D 100
Focal reducers: Riccardi Big 0.75x reducer/flattener
Filters: Baader Planetarium L,R,G,B,Ha,OIII
Dates: Oct. 2, 2012
Frames:
Baader Planetarium L,R,G,B,Ha,OIII: 78×600″
Baader Planetarium L,R,G,B,Ha,OIII: 52×900″
Integration: 26.0 hours

Autor: Stefan Seip

AstroPhotography of the day by SPONLI
1 January 2014

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

The Bubble Nebula

Image Credit & Copyright: J-P Metsävainio (Astro Anarchy)

Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 10 light-year diameter bubble offers evidence of violent processes at work. Above and right of the Bubble’s center is a hot, O star, several hundred thousand times more luminous and around 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula lies a mere 11,000 light-years away toward the boastful constellation Cassiopeia. This natural looking view of the cosmic bubble is composed from narrowband image data, also used to create a 3D model.

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