Contains: Helix nebula, NGC 7293
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NGC 7293 the Helix Nebula in Aquarius 10/11/2013

Technical card

Imaging telescopes or lenses: Orion ED80T CFAT6RC

Imaging camera: Atik 314L+

Mount: Orion Atlas EQ-G

Guiding telescope or lens: Orion USA Mini Guide Scope

Guiding camera: Orion SSAG

Focal reducer: Televue .8 Reduce/flattener for TV-85

Software: DeepSkyStackerNebulosityPhotoshop CS4Registar

Filters: Orion H‑Alpha 7nmOIII 5nm

Accessory: Orion Filter wheel

Resolution: 1415x1100

Dates: Sept. 27, 2011Oct. 10, 2013

Orion H‑Alpha 7nm: 35x600" -20C bin 1x1
OIII 5nm: 18x600" -20C bin 1x1

Integration: 8.8 hours

Flats: ~20

Bias: ~20

Avg. Moon age: 2.92 days

Avg. Moon phase: 16.81%

Bortle Dark-Sky Scale: 6.00

Mean FWHM: 4.30

Temperature: 10.50 job: 85641

RA center: 337.422 degrees

DEC center: -20.844 degrees

Pixel scale: 1.210 arcsec/pixel

Orientation: 88.613 degrees

Field radius: 0.301 degrees

Locations: Home observatory, Mason, Ohio, United States


Tough object to capture due to its low elevation and the fact that I can only see it for about 3 hours at a time. I captured the HA data over 3 nights and then used my HA OIII bicolor widefield image from 2011 for the chrominance in this one.




Sky plot

Sky plot


NGC 7293 the Helix Nebula in Aquarius 10/11/2013, rigel123