Contains: M 81, Bode's nebulae, NGC 3031
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Technical card

Imaging telescope or lens: Skyvision Ritchey-Chrétien 10"

Imaging camera: Sony A7s

Mount: EQ8

Software: PixInsightphotoshop

Resolution: 4168x2776

Dates: Nov. 28, 2016

Frames: 1300x30"

Integration: 10.8 hours

Avg. Moon age: 28.62 days

Avg. Moon phase: 0.93%

Astrometry.net job: 1382823

RA center: 148.892 degrees

DEC center: 69.051 degrees

Pixel scale: 0.851 arcsec/pixel

Orientation: 88.033 degrees

Field radius: 0.592 degrees

Locations: Longuesse ( SQM 20.09 ), Longuesse, Val d'oise, France

Description

M81 on 2 night 1300x 30s , but poor transparency, and big issue with flat

you can DL the original pixinsight picture ( .xisf files 32bit)
http://www.avex-asso.org/filerun/wl/?id=oYjpksSSzh8WBX5a0OWKrETlgZMuZXoX

Comments

Author

Frédéric Tapissier
Like

Revisions

B

a selection of 850 best frame... little more noisy but more sharp (AAPODIZED version see : http://www.aapodx2.com/2017/20170509.html )

Sky plot

Sky plot

Histogram

M81, Frédéric Tapissier

In these public groups

Avex