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Observation by Mark Phillips: M81 Ha-RGB

Uploaded by

Mark Phillips

Observer

Mark Phillips

Observed

2020 Mar 22 - 21:17

Uploaded

2020 Mar 23 - 15:21

Objects

M81

Planetarium overlay









Constellation

Ursa Major

Field centre

RA: 09h55m
Dec: +69°03'
Position angle: +8°37'

Field size

0°35' × 0°28'

Equipment
  • 250mm f4.8 OO Newtonian
  • Atik 460EX @-15C
  • Baader RGB and Ha filters 2x2
  • Capture: APT
  • Processing: APP, Photoshop
Exposure

RGB 10x180s 2x2 each, Ha 8x300s 2x2

Location

Edinburgh, UK

Target name

M81 Bode's Nebula

Title

M81 Ha-RGB

About this image

Added a layer of Ha on top for the first time to bring out the emission regions.

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