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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
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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