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NGC 1755 — Open Cluster in Dorado

Open Cluster Fair (39/100)
Magnitude 9.9m OpenCluster Dorado (Dor) Visible
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1Properties

Magnitude 9.9
Angular Size 2.2′ × 1.9′
Position Angle 130°
vB, pL, R, gbM, f of 2

Position & Identifiers

RA 04h 55m 14.9s
Dec -68° 12' 14.8"
Constellation Dorado (Dor)
Catalog NGC 1755

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium+ Medium+ 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

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 1755 · 2.2′ 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.

NGC 1732
Hard+
Open cluster
Open Cluster mag 12.30 0.5° Dorado
NGC 1786
Easy
Compact globular cluster
Globular Cluster mag 10.1 0.6° Dorado
NGC 1774
Easy
Open cluster
Open Cluster mag 10.0 1.0° Dorado
NGC 1804
Hard+
Open cluster
Open Cluster mag 11.87 1.0° Dorado
NGC 1756
Hard+
Open cluster
Open Cluster mag 12.24 1.0° Dorado
IC 2105
Hard+
Diffuse nebula
Diffuse Nebula mag 11.30 1.1° Dorado
NGC 1763
Medium+
Emission nebula — try an OIII filter
Emission Nebula mag 9.40 1.8° Dorado
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