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Collinder 367 — Open Cluster in Sagittarius

Open Cluster Good (58/100)
Magnitude 6.4m OpenCluster Sagittarius Visible
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1Properties

Magnitude 6.4
Angular Size 40 arcmin
Open Cluster

Position & Identifiers

RA 18h 09m 51.0s
Dec -23° 49' 42.0"
Constellation Sagittarius
Catalog Cr 367

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy Easy
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

Easy on Seestar S50

3Visibility

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Best season May – Jul (peak: Jun)

4 Eyepiece View

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50x TFOV: 1.0° Lim. mag: 13.6
N E

Collinder 367 · 40.0′ diameter

5 Best Magnification

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

IC 4678
Medium
Diffuse nebula
Diffuse Nebula mag 10.40 0.4° Sagittarius
NGC 6546
Easy
Open cluster
Open Cluster mag 8.0 0.8° Sagittarius
NGC 6544
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 8.3 1.3° Sagittarius
NGC 6530
Easy
Rich open cluster
Open Cluster mag 4.6 1.3° Sagittarius
9 Sgr
Easy
Hot blue O-type star
Star mag 5.97 1.5° Sagittarius
M21
Webb's Cross Cluster
Easy
Rich open cluster
Open Cluster mag 6.5 1.8° Sagittarius
NGC 6583
Easy
Open cluster
Open Cluster mag 10.0 2.2° Sagittarius
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