Contains: M 81, Bode's nebulae, NGC 3031
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M81 and IFN (Jim & Linda Powell data)

Technical card

Imaging telescope or lens: TEC 160FL

Imaging camera: SBIG STF-8300M

Mount: Paramount ME

Software: Pleaides Astrophoto PixInsight 1.8

Resolution: 3260x2435

Astrodon 3nm Ha: 10x1800" bin 1x1
Astrodon B Gen.2 E-series: 25x900" bin 1x1
Astrodon G Gen.2 E-series: 21x900" bin 1x1
Astrodon L Gen.2 E-series: 118x600" bin 1x1
Astrodon L Gen.2 E-series: 8x900" bin 1x1
Astrodon R Gen.2 E-series: 23x900" bin 1x1

Integration: 43.9 hours job: 1546092

RA center: 148.886 degrees

DEC center: 69.068 degrees

Pixel scale: 0.967 arcsec/pixel

Orientation: 161.789 degrees

Field radius: 0.546 degrees


A deep M81 image based on data from Jim & Linda Powell's TEC 160FL at DSW. There's a little RCOS 14.5 luminance mixed in as well (hence the diffraction spikes.)



Rick Stevenson

Sky plot

Sky plot


M81 and IFN (Jim & Linda Powell data), Rick Stevenson