HFG 1 and Abell 6 in HOO-RGB (Nicola Beltraminelli)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD17706 · HD17958 · HD18137 · HD18565 · HD18892 · PK136+04.1 · PK136+05.1

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HFG 1 and Abell 6 in HOO-RGB

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HFG 1 and Abell 6 in HOO-RGB

HFG1 was discovered in 1982 by Heckathorn, Fesen and Gull . It is a planetary nebula in the constellation of Cassiopeia produced by a binary star system (V664 Cas) composed of a white dwarf and a Sun-like star, which are only a few million kilometers apart and are orbiting each other every 14 hours. This binary system is moving rapidly through our Milky Way. As HFG1 plows through the interstellar medium, a bluish bowshock is produced. A long, red trail of about 10,000 year old gas is left behind by V664 Cas.

On the left part of the image one can observe a more classical "bubble" style nebula named Abell 6. Interestingly its structure is not uniform and one can note two thin lobes, as well as some irregularity of the brightness over its surface.

I was intrigued by these very peculiar objects, thus I tried to immotalize them with my SVX180T. By generating the first subs, I rapidly understod that this project was a major challenge. As a matter of fact HFG 1 is extremely dim and despite my 600s subs in Ha and OIII, the signals are extremely weak. I hesitated to abandon the project, but finally decided to push it to the end to see how far I could go. To my positive surprise I successfully captured the nebulas and their surroundings with a decent level of details. I tried to balance the layers intensity and colors to show subtilities on the gas composition around HFG 1. Not an easy exercise. I believe that with a larger and brighter scope, this object could be a bit less challenging.

Comments and suggestions are of course welcome :-)

CS!

Nicola

Duo-band, Tri-band, and Quad-band Imaging
ASI 6200 MM Pro
Processed with Photoshop
Astrophotographes (France)
Narrowband imaging

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Status	Advanced success
Started	...
Astrometry.net job	9023701
PixInsight job	KQOZ1HDZSTH0BI3M82YH684AOXE1R8AZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h00m37s.488
RA (top/left)	02h59m59s.999
RA (top/right)	03h08m18s.795
RA (bottom/right)	03h01m17s.469
RA (bottom/left)	02h53m04s.940

Dec (center)	+64°45′40″.69
Dec (top/left)	+63°54′42″.19
Dec (top/right)	+65°00′43″.15
Dec (bottom/right)	+65°36′40″.51
Dec (bottom/left)	+64°29′09″.47

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HFG 1 and Abell 6 in HOO-RGB

HFG 1 and Abell 6 in HOO-RGB

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HFG 1 and Abell 6 in HOO-RGB

HFG 1 and Abell 6 in HOO-RGB

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