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NGC 2105 — Open Cluster in Dorado

Open Cluster Fair (29/100)
Magnitude 12.2m OpenCluster Dorado (Dor) Visible
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1Properties

Magnitude 12.19
Angular Size 1.7′ × 1.5′
Position Angle 160°
F, pS, R, gbM

Position & Identifiers

RA 05h 44m 12.0s
Dec -66° 25' 00.0"
Constellation Dorado (Dor)
Catalog NGC 2105

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Hard V. hard+ V. hard
150mm Newt. Medium Hard+ Hard
C8 203mm Medium+ Medium Hard+
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 2105 · 1.7′ diameter

5 Best Magnification

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6 Classification Decoder

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