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NGC 6583 — Open Cluster in Sagittarius

Open Cluster Fair (37/100)
Magnitude 10.0m OpenCluster Sagittarius (Sgr) Visible
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1Properties

Magnitude 10.0
Angular Size 3.6′
Cl, pRi, pC, cE, st 13...

Position & Identifiers

RA 18h 15m 48.0s
Dec -22° 07' 60.0"
Constellation Sagittarius (Sgr)
Catalog NGC 6583

2How easy to spot?

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

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

Medium on Seestar S50

3Visibility

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Best season May – Jul (peak: Jun)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 6583 · 3.6′ diameter

5 Best Magnification

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6 Classification Decoder

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.

NGC 6568
Easy
Open cluster
Open Cluster mag 9.0 0.9° Sagittarius
Collinder 367
Easy
Open cluster
Open Cluster mag 6.4 2.2° Sagittarius
NGC 6546
Easy
Open cluster
Open Cluster mag 8.0 2.3° Sagittarius
NGC 6595
Easy
Open cluster
Open Cluster mag 7.0 2.3° Sagittarius
NGC 6589
Medium
Diffuse nebula
Diffuse Nebula mag 10.50 2.4° Sagittarius
M20
Trifid Nebula
Easy
Emission nebula — try an OIII filter
Emission Nebula mag 6.3 3.2° Sagittarius
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