Observation by Martin Ratcliffe: M81 and M82

Uploaded by

Martin Ratcliffe

Observer

Martin Ratcliffe

Observed

2025 Jan 31 - 07:00

Uploaded

2025 Apr 06 - 21:12

Objects

M81
M82
NGC3077

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Constellation

Ursa Major

Field centre

RA: 09h56m
Dec: +69°04'
Position angle: -100°39'

Field size

2°14' × 1°34'

Equipment
  • 152mm APO
  • QHY600M
  • Optolong 2" LRGBHa filters
Exposure

5.3 hours (4 min subs)

Location

Stansbury Park, UT, USA

Target name

M81 and M82

Title

M81 and M82

About this image

M81 and M82 series of LRGBHa images taken on two separate nights, Jan 30/31 and Feb 27/28, 2025.
All images were 240s subs, but I added 8 300s Ha subs on the second night.
Sequences in N.I.N.A. using a QHY600M Pro camera, Optolong filters, and a 152 mm AR ExploreScientific Refractor                                      

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