Hemisphere:  Northern  ·  Contains:  PGC2797165  ·  PK136+05.1
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HFG 1 (PK 136+05), 



    
        

            Peter Goodhew
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HFG 1 (PK 136+05)

Imaging telescopes or lenses: APM Telescopes TMB - LZOS Apo refractor 152/1200

Imaging cameras: QSI 6120wsg-8

Mounts: 10Micron GM2000HPS II

Guiding cameras: Starlight Xpress Lodestar Autoguider X2

Filters: Astrodon Lum  ·  Astrodon Blue  ·  Green  ·  Red  ·  Astrodon SII 5nm  ·  Astrodon OIII 3 nm  ·  Astrodon 5nm H-Alpha filter


Frames:
Astrodon 5nm H-Alpha filter: 33x1800" bin 2x2
Astrodon Blue: 10x300" bin 1x1
Green: 10x300" bin 1x1
Astrodon Lum: 11x600" bin 1x1
Astrodon OIII 3 nm: 35x1800" bin 2x2
Red: 10x300" bin 1x1

Integration: 38.3 hours


Astrometry.net job: 3040898

RA center: 3h 3' 47"

DEC center: +64° 54' 34"

Pixel scale: 0.533 arcsec/pixel

Orientation: -1.218 degrees

Field radius: 0.351 degrees


Resolution: 3976x2592

Locations: e-Eye, Fregenal de la Sierra, Extramadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

HFG1 (PK 136+05) is a very old large, low-surface-brightness planetary nebula in Cassiopeia that was discovered by Heckathorn, Fesen, and Gull in 1982. It surrounds, and was produced by, a binary star system (V664 Cas) that is moving rapidly through our Galaxy. The star is moving towards the lower left of the image. As HFG1 plows through the interstellar medium, a bluish bowshock is produced; and a red trail of gas is left behind in its wake.

Ref: Monthly Notices of the Royal Astronomical Society 396(2):1186 - 1188 · June 2009

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PeterGoodhew
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HFG 1 (PK 136+05), 



    
        

            Peter Goodhew