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NGC 1870 — Open Cluster in Dorado

Open Cluster Fair (29/100)
Magnitude 11.3m OpenCluster Dorado (Dor) Visible
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1Properties

Magnitude 11.26
Angular Size 1.1′ × 1.0′
Position Angle 10°
B, S, R, glbM

Position & Identifiers

RA 05h 13m 09.9s
Dec -69° 07' 00.8"
Constellation Dorado (Dor)
Catalog NGC 1870

2How easy to spot?

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

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 1870 · 1.1′ diameter

5 Best Magnification

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6 Classification Decoder

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