Contains: NGC 1491
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NGC 1491 in Perseus 10/10/2013

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 SIIOIII 5nm

Accessory: Orion Dewzapper

Resolution: 1377x1103

Dates: Dec. 1, 2011Oct. 9, 2013

Orion H‑Alpha 7nm: 21x900" -20C bin 1x1
OIII 5nm: 9x1200" -20C bin 1x1
Orion SII: 9x1200" -20C bin 1x1

Integration: 11.2 hours

Flats: ~20

Avg. Moon age: 5.63 days

Avg. Moon phase: 32.13%

Bortle Dark-Sky Scale: 6.00

Mean FWHM: 3.77

Temperature: 7.67 job: 86333

RA center: 60.848 degrees

DEC center: 51.316 degrees

Pixel scale: 1.213 arcsec/pixel

Orientation: 88.576 degrees

Field radius: 0.297 degrees

Locations: Home observatory, Mason, Ohio, United States


I gathered 7 hours of HA and then used my widefield image from 2011 to add the chrominance.




Sky plot

Sky plot


NGC 1491 in Perseus 10/10/2013, rigel123