Observation by Ian Rothwell: M31 (RGB)

Uploaded by

Ian Rothwell

Observer

Ian Rothwell

Observed

2018 Oct 06 - 20:02

Uploaded

2018 Oct 07 - 14:36

Objects

The Andromeda Galaxy (M31)

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Constellation

Andromeda

Field centre

RA: 00^h42^m
Dec: +41°16'
Position angle: +117°56'

Field size

0°56' × 1°15'

Equipment

SkyWatcher Explorer 150P
ZWO ASI1600MMCool Pro
ZWO EFW 1.25" x 8

Exposure

62 subs x RGB (>3hrs light), 23 x darks, 10 x flats, 20 x bias

Location

Bournemouth, Dorset

Target name

M31

Title

M31 (RGB)

About this image

Whilst M31 is an easy DSO target it's not easy to get a good image of the dust lanes and the core. My previous attempts have resembled a fried egg. I was determined to capture the detail in the lanes by taking more subs. In total, including the luminence channel (which I haven't used here), I collected over 4hrs of light. Not entirely happy with the result, but it's getting there.

The night was very windy with rapidly moving cloud to begin with and PHD was having to work hard, but later it settled down to a very clear (cold) night. Thankfully, I was sat in the warm of my house for 5hrs whilst taking the automated exposures with APT.

Thinking of doing a two-part mosaic next time to fit it all in. I don't think my Newtonian has the back-focus for a reducer.

Files associated with this observation

M31_RGB_003_BAA.jpg (1.9 MB)

Like this image

David Swan, Jeremy Shears, Graham Winstanley, Andy Wilson, Neil Morrison

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