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NGC 957 — Open Cluster in Perseus

Open Cluster Good (56/100)
Magnitude 7.6m OpenCluster Perseus (Per) Visible
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1Properties

Magnitude 7.6
Angular Size 10.2′
Cl, pL, pRi, st 13...15

Position & Identifiers

RA 02h 33m 19.0s
Dec +57° 34' 10.9"
Constellation Perseus (Per)
Catalog NGC 957

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 Sep – Nov (peak: Oct)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 957 · 10.2′ 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.

Double cluster
NGC 884
Easy
Rich open cluster
Open Cluster mag 4.0 1.5° Perseus
Double Cluster
NGC 869
Easy
Rich open cluster
Open Cluster mag 4.3 1.8° Perseus
IC 1848 C
Easy
Open cluster
Open Cluster mag 6.5 3.7° Cassiopeia
IC 1805 C
Easy
Open cluster
Open Cluster mag 6.5 3.9° Cassiopeia
1 Per
Hard+
Eclipsing binary, period 25.9d
Variable Star mag 5.52 6.2° Perseus
M76
Little Dumbbell Nebula
Hard+
Planetary nebula — try an OIII filter
Planetary Nebula mag 10.1 9.5° Perseus
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