Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
M81 and M82 with a hint of IFN, Steve Milne
M81 and M82 with a hint of IFN
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M81 and M82 with a hint of IFN

M81 and M82 with a hint of IFN, Steve Milne
M81 and M82 with a hint of IFN
Powered byPixInsight

M81 and M82 with a hint of IFN

Equipment

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Acquisition details

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Description

The LRGB data was captured over consecutive nights from 23-27 March 2017 on a WO Star 71 (Mk I) and a Moravian G2-8300 with Bader Filters.

I had been gathering Ha data on a two-panel mosaic with my Esprit 120/QSI 690 combination. These were 1800s subs which I began capturing back at the beginning of March and is ongoing. This Ha mosaic was rescaled and aligned to the LRGB using Registar. Although I have 5 hours on each panel, I have only 'counted' 5 hours towards the total integration time - I could not see any good reason to shoot 5 hours of Ha through the WO Star 71 when I already had the 'equivalent'.

Data capture was completed on 27 March, and this is the date posted.

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M81 and M82 with a hint of IFN, Steve Milne