Tag Archives: Witch Head nebula

Witch Head Nebula

IC 2118 (also known as Witch Head Nebula due to its shape), is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion. It lies in the Eridanusconstellation, about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. Radio observations show substantial carbon monoxide emission throughout parts of IC 2118 an indicator of the presence of molecular clouds and star formation in the nebula. In fact candidates for pre-main sequence stars and some classic T-Tauri stars have been found deep within the nebula.

Imaging telescopes or lenses: William Optics Star 71

Imaging cameras: QHYCCD QHY8

Mounts: Orion Atlas EQ-G + EQDIR

Guiding cameras: QHYCCD Q5L-II-M

Software: PixInsight 1.8, Photoshop CC, AstroTortilla Plate Solver, Cartes du Ciel Planitarium, Nebulosity 3.1 Nebulosity und PHD

Accessories: Orion Thin OAG

Resolution: 1972×3037

Dates: Feb. 14, 2015, Feb. 25, 2015

Frames: 30×600″

Integration: 5.0 hours

Avg. Moon age: 15.32 days

Avg. Moon phase: 36.70%

RA center: 76.123 degrees

DEC center: -7.171 degrees

Orientation: 3.755 degrees

Field radius: 2.314 degrees

Author: Josh Smith

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IC 2118, Witch Head Nebula

IC 2118 (also known as Witch Head Nebula due to its shape), is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion. It lies in the Eridanus constellation, about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. Radio observations show substantial carbon monoxide emission throughout parts of IC 2118 an indicator of the presence of molecular clouds and star formation in the nebula. In fact candidates for pre-main sequence stars and some classic T-Tauri stars have been found deep within the nebula.

Imaging telescopes or lenses: Vixen ED80Sf

Imaging cameras: Canon EOS 350D mod. Baader

Mounts: Vixen Sphinx SXW

Guiding telescopes or lenses: Lunático Astronomia EZG60

Guiding cameras: QHYCCD QHY5 color

Focal reducers: 0.85x Reducer & Corrector for Vixen ED80/600

Software: Incanus APT – Astro Photography Tool, Pleiades Astrophoto Pixinsight Core 1.8

Resolution: 3000×2290

Dates: Jan. 11, 2015

Frames: 18×300″ ISO800

Integration: 1.5 hours

Darks: ~15

Flats: ~50

Bias: ~50

Avg. Moon age: 19.99 days

Avg. Moon phase: 72.13%

Bortle Dark-Sky Scale: 3.00

RA center: 76.242 degrees

DEC center: -6.991 degrees

Pixel scale: 2.533 arcsec/pixel

Orientation: 0.447 degrees

Field radius: 1.327 degrees

Locations: Finca “Los Lastrones” (1270 m) – Cebreros, Cebreros, Avila, Spain

Author: Angelillo

IC 2118 – Witch Head Nebula

IC 2118 (also known as Witch Head Nebula due to its shape), is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion. It lies in the Eridanusconstellation, about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. Radio observations show substantial carbon monoxide emission throughout parts of IC 2118 an indicator of the presence of molecular clouds and star formation in the nebula. In fact candidates for pre-main sequence stars and some classic T-Tauri stars have been found deep within the nebula.

The molecular clouds of IC 2118 are probably juxtaposed to the outer boundaries of the vast Orion-Eridanus bubble, a giant supershell of molecular hydrogen blown by the high mass stars of the Orion OB1 association. As the supershell expands into the interstellar medium, favorable circumstances for star formation occur. IC 2118 is located in one such area.The wind blown appearance and cometary shape of the bright reflection nebula is highly suggestive of a strong association with the high mass luminous stars of Orion OB1. The fact that the heads of the cometary clouds of IC2118 point northeast towards the association is strong support of that relationship.

Imaging telescopes or lenses: Takahashi FSQ 106ED
Imaging cameras: SBIG STL-11000M
Mounts: Astro-Physics AP900
Guiding telescopes or lenses: Takahashi FS-60CB
Guiding cameras: Starlight Xpress Lodestar
Software: Pleaides Astrophoto PixInsight 1.8, Maxim DL
Filters: Astrodon E-series 2 LRGB
Accessories: FLI Atlas focuser
Dates: Oct. 12, 2012
Frames: 36×300″
Integration: 3.0 hours

Author: Rick Stevenson
AstroPhotography of the day by SPONLI 30 May 2014

Witch Head nebula

IC 2118 (also known as Witch Head Nebula due to its shape), is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion. It lies in the Eridanus constellation, about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. Radio observations show substantial carbon monoxide emission throughout parts of IC 2118 an indicator of the presence of molecular clouds and star formation in the nebula. In fact candidates for pre-main sequence stars and some classic T-Tauri stars have been found deep within the nebula.

Imaging telescopes or lenses: Teleskop Service TSAPO65Q
Imaging cameras: NIKON D7000
Mounts: SkyWatcher HEQ5 PRO
Guiding cameras: Lunatico Astronomia QHY5
Dates: Dec. 28, 2013
Frames: 6×600″
Integration: 1.0 hours

Autor: Gustavo Naharro

AstroPhotography of the day by SPONLI
3 January 2014

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

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