Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  M 81  ·  NGC 3031
M81: 2020 OSC RGB data blended with 2022 HO data, David Redwine
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M81: 2020 OSC RGB data blended with 2022 HO data

M81: 2020 OSC RGB data blended with 2022 HO data, David Redwine
Powered byPixInsight

M81: 2020 OSC RGB data blended with 2022 HO data

Equipment

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Acquisition details

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Description

March 17, 2020
Zwo 1600 MC (not cooled)

Baader Moon and Skyglow filter  11 x 240s  gain 200

January 16, 2022
Zwo ASI 1600 MM Pro at -30C

H 39 x 240  gain 200
O 19 x 240  gain 200


A blend of some old RGB data with some new HO data.

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