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NGC 4337 — Open Cluster in Crux

Open Cluster Good (42/100)
Magnitude 8.9m OpenCluster Crux (Cru) Visible
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1Properties

Magnitude 8.9
Angular Size 6.6′
Cl, pRi, lC, st 12...14

Position & Identifiers

RA 12h 24m 03.3s
Dec -58° 07' 25.7"
Constellation Crux (Cru)
Catalog NGC 4337

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy 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 Feb – Apr (peak: Mar)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 4337 · 6.6′ 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 4439
Easy
Open cluster
Open Cluster mag 8.4 2.1° Crux
NGC 4230
Easy
Open cluster
Open Cluster mag 9.0 3.0° Centaurus
NGC 4349
Easy
Open cluster
Open Cluster mag 7.4 3.7° Crux
NGC 4103
Easy
Open cluster
Open Cluster mag 7.0 3.8° Crux
S Cru
Medium
Pulsating variable, period 4.7d
Variable Star mag 6.58 4.0° Crux
Blue planetary
NGC 3918
Medium+
Small bright planetary nebula
Planetary Nebula mag 8.0 4.6° Centaurus
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