Hemisphere:  Northern  ·  Constellation: Lynx (Lyn)
PUWE1 Ha, 


            Kenneth Sneis
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Technical card

Imaging telescopes or lenses: GSO 150/750  ·  Boren-Simon BS 8" F3,6

Imaging cameras: Cannon 1100Da

Mounts: AZ-EQ6GT

Guiding telescopes or lenses: GSO 150/750  ·  Boren-Simon BS 8" F3,6

Guiding cameras: QHY5L-II-M

Software: PinInsight 1.8

Filters: EOS-Clip Ha 12

Frames: 1x74700"

Integration: 20.8 hours

Basic astrometry details

Astrometry.net job: 1014458

RA center: 6h 19' 15"

DEC center: +55° 34' 30"

Pixel scale: 1.402 arcsec/pixel

Orientation: -19.008 degrees

Field radius: 0.669 degrees

Resolution: 2730x2086

Locations: Home observatory, Halden, Norway


Mars 2015:
GSO 6" F5, Canon 1100Da
8x2700 ISO 1600 Ha
9x1800 ISO 1600 Ha
1x1500 ISO 1600 Ha
16x900 ISO 1600 Ha

Jan - Mars 2016
BS 8" F3,6, Canon 1100Da
10x1800 ISO 1600 Ha
2x1500 ISO 1600 Ha

Total 20,75 hr


PuWe1, in Lynxis, one of the largest and faintest planetary nebula known to exist. The nebula was created when a red giant star blew off its outer layers near the end of its life. The gas is energized by the remaining core of the star, which is called a white dwarf. However it is very faint due to its large size. As planetary nebulae expand they become fainter because the gas moves further from the white dwarf that energizes it. (text from NOAO)


Sky plot

Sky plot


PUWE1 Ha, 


            Kenneth Sneis