BBC Sky at Night Magazine

The Coathanger

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α Mini-W

NGC 7209

π ι β

NGC 7243

IC 5146

NGC 7082 κ

NGC 7027

NGC 7063

M39

NGC 7000

ν ζ

σ

τ ξ

From Scutum we’re now going to traverse the stars of Aquila and Sagitta to focus on a wonderful sight in the realm of Vulpecula, the Fox. The Coathanger – also known as Collinder 399 or Brocchi’s Cluster – sits about four and half degrees to the south of the star Anser (Alpha (a) Vulpeculae).

It’s a great target for a pair of binoculars, as the cluster appears about one and a half degrees across on the sky and contains mostly fifth and sixth magnitude stars.

There are several ways you can go about tracking it down, but probably the easiest is to slowly scan the region between the bright stars Albireo (Beta (b) Cygni) in Cygnus, and Altair (Alpha (a) Aquilae) in Aquila. From a dark-sky location it is a fine sight, situated among the granular star fields and dark galactic dust lanes.

ν

α

Deneb

IC 5070

Northern Cross

IC 4996

Collinder 419

NGC 6888

Biurakan 2

εGienah

Veil Nebula Complex

Sadr γ

NGC 6826

M29

NGC 6940 θ

NGC 6871 η

M27

δ γ ι

NGC 6811 dark path to NGC 6940 is easily visible to the naked eye under dark skies, you’ll need a larger scope to see the cluster well. If you’re using a manual mount, find

NGC 6819

Albireo

M71 φ

δ

Sulafat γ

NGC 6823 β θ β

α

α η

δ

M56

Vega α

ζ Stephenson 1

β

Sheliak

M57

Collinder 399 ζ

ε κ the target by first selecting a low power eyepiece – around 30x magnificat­ion is ideal. Next, place the fourth magnitude star 41 Cygni on, or near to, the westernmos­t θ

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 ??  ?? You’ll get a good view of NGC 6940 through a larger telescope
You’ll get a good view of NGC 6940 through a larger telescope

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