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BAA Images Mike Greenhill-Hooper

Observation by Mike Greenhill-Hooper: M109

Uploaded by

Mike Greenhill-Hooper

Observer

Mike Greenhill-Hooper

Observed

2021 Mar 20 - 22:00

Uploaded

2021 Apr 02 - 08:37

Objects

M109

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Constellation

Ursa Major

Field centre

RA: 11h57m
Dec: +53°22'
Position angle: +21°44'

Field size

0°19' × 0°21'

Equipment
  • Celestron C11 on SkyWatcher NEQ6 mount; f6.3 focal reducer
  • StarShoot OAG Atik 383L
Exposure

15x5min binned; 15x5min un-binned

Location

Miradoux, S.W. France

Target name

M109

Title

M109

About this image

Not so happy with auto-guiding - quite big movements required using PHD2.  Moon brighter than expected, so lots of background light.  Struggled to get any sensible colour out of the unbinned images. Can just pick out two of the three satellite galaxies - UGC 6969 (mag 15.4) at 11 o'clock and UGC 6940 (mag 16.7) at 7 o'clock. Needs improvement!

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