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NGC 1605 — Open Cluster in Perseus

Open Cluster Good (43/100)
Magnitude 10.7m OpenCluster Perseus (Per) Visible
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1Properties

Magnitude 10.7
Angular Size 3.3′
Cl, vF, pS, C, st eS

Position & Identifiers

RA 04h 34m 52.3s
Dec +45° 16' 17.0"
Constellation Perseus (Per)
Catalog NGC 1605

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium Hard+ Hard
150mm Newt. Easy Medium+ Medium+
C8 203mm Easy Easy Medium+
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 Oct – Dec (peak: Nov)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 1605 · 3.3′ 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 1582
Easy
Open cluster
Open Cluster mag 7.0 1.6° Perseus
NGC 1664
Easy
Open cluster
Open Cluster mag 7.6 3.3° Auriga
NGC 1545
Easy
Rich open cluster
Open Cluster mag 6.2 5.5° Perseus
NGC 1513
Easy
Open cluster
Open Cluster mag 8.4 6.0° Perseus
IC 2067
Hard+
Diffuse nebula
Diffuse Nebula mag 11.49 9.9° Perseus
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