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NGC 2311 — Open Cluster in Monoceros

Open Cluster Good (40/100)
Magnitude 10.0m OpenCluster Monoceros (Mon) Visible
Star Map
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1Properties

Magnitude 10.0
Angular Size 6.0′
Cl, lC, not Ri

Position & Identifiers

RA 06h 57m 47.5s
Dec -04° 36' 40.7"
Constellation Monoceros (Mon)
Catalog NGC 2311

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

Easy on Seestar S50

3Visibility

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Best season Nov – Jan (peak: Dec)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 2311 · 6.0′ 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 2309
Medium+
Open cluster
Open Cluster mag 11.0 2.6° Monoceros
NGC 2302
Easy
Open cluster
Open Cluster mag 8.9 2.9° Monoceros
NGC 2299
Easy
Open cluster
Open Cluster mag 8.90 2.9° Monoceros
NGC 2286
Easy
Open cluster
Open Cluster mag 7.5 2.9° Monoceros
NGC 2282
Medium+
Emission nebula — try an OIII filter
Emission Nebula mag 10.00 6.5° Monoceros
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