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NGC 381 — Open Cluster in Cassiopeia

Open Cluster Good (45/100)
Magnitude 9.0m OpenCluster Cassiopeia (Cas) Visible
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1Properties

Magnitude 9.0
Angular Size 6.0′
Cl, pC

Position & Identifiers

RA 01h 08m 18.0s
Dec +61° 34' 60.0"
Constellation Cassiopeia (Cas)
Catalog NGC 381

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 Sep – Nov (peak: Oct)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 381 · 6.0′ diameter

5 Best Magnification

Explore

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 436
Easy
Open cluster
Open Cluster mag 8.8 2.9° Cassiopeia
NGC 225
Easy
Open cluster
Open Cluster mag 7.0 2.9° Cassiopeia
NGC 559
Easy
Open cluster
Open Cluster mag 9.5 3.0° Cassiopeia
M103
NGC 581
Easy
Open cluster
Open Cluster mag 7.4 3.1° Cassiopeia
Phi Cas
Easy
Easy double, sep 134.1″
Double Star mag 4.98 3.7° Cassiopeia
NGC 281
Medium+
Emission nebula — try an OIII filter
Emission Nebula mag 7.0 5.3° Cassiopeia
IC 10
Medium
Galaxy
Galaxy mag 10.3 6.3° Cassiopeia
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