Observation by Paul Whitmarsh: M81, M82 & Holmberg IX (UGC 5336)

Uploaded by

Paul Whitmarsh

Observer

Paul Whitmarsh

Observed

2025 Apr 10 - 22:39

Uploaded

2025 Apr 14 - 21:16

Objects

M81
M82
UGC 5336

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Constellation

Ursa Major

Field centre

RA: 09^h56^m
Dec: +69°20'
Position angle: -1°13'

Field size

0°40' × 1°12'

Equipment

Seestar S50

Exposure

1215 x 30" 10h 7m 30s integration time

Location

Mileaway Observatory Uckfield

Target name

M81 M82 and UGC 5336

Title

M81, M82 & Holmberg IX (UGC 5336)

About this image

The Moon was waxing gibbous over 90% full, the M81 area seemed to be far enough away from the Moon to limit the impact the image. So I pointed the SeeStar S50 at the M81 region for two nights giving just over 10 hours of usable subs, using the SeeStar's standard luminance filter.

In addition to the arms of M81, the explosive nature of M82, the Seestar has also picked out Holmberg IX, an irregular satellite galaxy of M81.

Files associated with this observation

M_81_1215x30sec_10h7m30s_T10C_2025_04_10_23_38_44.png (1.3 MB)

Like this image

Simon Paul Davis, Dominic Ford, Callum Potter

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