Observation by Peter Mulligan: M39

Uploaded by

Peter Mulligan

Observer

Peter Mulligan

Observed

2018 Sep 28 - 19:10

Uploaded

2018 Sep 30 - 17:47

Objects

M39

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Constellation

Cygnus

Field centre

RA: 21^h31^m
Dec: +48°24'
Position angle: -124°04'

Field size

0°57' × 0°41'

Equipment

Skywatcher Explorer 200p
on EQ5
Canon 1100D

Exposure

28-20sec, 800ISO

Location

Sheffield, UK

Target name

Galactic cluster M39

Title

M39

About this image

This prominent cluster is about 1060 light years away, and occupies a volume of 7 light-years. The stars are mainly early spectral types of A and B. The brightest member HD 205210 B9IV is about 200 times the luminosity of the sun.

Files associated with this observation

M39-1.jpg (1.9 MB)

Like this image

David Swan, Jeremy Shears, David Basey, Ray Emery, Geof Lewis, Andy Wilson, Peter Carson

Comments

David Swan, 2018 Sep 30 - 20:48 UTC

Thanks for the info too - it always gives one pause when trying to think of objects and groups of objects at this scale. Wonderful! David

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