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BAA Images Picture of the week Graeme Coates

Observation by Graeme Coates: M81 & M82 and Foreground IFN

Uploaded by

Graeme Coates

Observer

Graeme Coates

Observed

2021 Sep 17 - 10:52

Uploaded

2021 Sep 17 - 11:05

Objects

M81
M82
NGC3077

Planetarium overlay









Constellation

Ursa Major

Field centre

RA: 09h55m
Dec: +69°25'
Position angle: +83°27'

Field size

2°23' × 1°48'

Equipment
  • Skywatcher Esprit 80ED
  • MI-250
  • STF8300M
Exposure

48h45m Total

Location

EEYE

Target name

M81/M82

Title

M81 & M82 and Foreground IFN

About this image

M81 and M82 in Ursa Major - here a wide field view including the Integrated Flux Nebulae that pervade the northern reaches of the sky - MW3 (Mandel-Wilson 3 - the "Volcano" nebula) is the yellowish patch to the right hand edge (north) of the field.

I've added in H-Alpha data to enhance the chimneys of M82, the star forming regions of M81, and I've *just* got the cap of M82 (though it's right on the limit given the instrumental constraints - should have binned x2....)

Taken from EEYE in April/May 2021, Processing G Coates; Capture P. Tribe/G. Coates

L: 14hr40m 
R: 4hr
G: 3hr20m
B: 3hr30m
HA: 23hr 15m

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