Hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  Helix nebula  ·  NGC 7293  ·  NGC7293  ·  PK036-57.1
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NGC7293 Helix Nebula, 


            Mark Eby
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NGC7293 Helix Nebula

Imaging telescopes or lenses: Astro-Tech AT8RC Ritchey-Chretien

Imaging cameras: Orion StarShoot Pro V2.0

Mounts: Celestron CI-700

Guiding cameras: QHYCCD QHY5L II Autoguider

Focal reducers: Astro-Physics CCDT67

Software: Adobe Photoshop CS2  ·  Stark Labs PHD Giuding  ·  Stark Labs Nebulosity 4

Accessory: Orion Deluxe OAG

Dates:Sept. 18, 2015

Frames: 15x600"

Integration: 2.5 hours

Avg. Moon age: 4.68 days

Avg. Moon phase: 22.83%

Astrometry.net job: 785101

RA center: 22h 29' 36"

DEC center: -20° 50' 27"

Pixel scale: 1.760 arcsec/pixel

Orientation: 31.348 degrees

Field radius: 0.528 degrees

Resolution: 1800x1200

Locations: SDAA Dark Sky Observing Site, Tierra del Sol, CA, United States

Data source: Traveller


Also known as the "Eye of God", the Helix Nebula is a planetary nebula formed when a star expired and gave off gases which then became energized by the star in the center. At 700 light-years from Earth, it is one of the closest bright planetary nebulas. Spanning over 2 light-years across, it's age is about 10,000 years. North is at the top-right.


Sky plot

Sky plot


NGC7293 Helix Nebula, 


            Mark Eby