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Collinder 106 — Open Cluster in Monoceros

Open Cluster Excellent (67/100)
Magnitude 4.6m OpenCluster Monoceros Visible
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1Properties

Magnitude 4.6
Angular Size 35 arcmin
Open Cluster

Position & Identifiers

RA 06h 37m 06.0s
Dec +05° 57' 00.0"
Constellation Monoceros
Catalog Cr 106

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 Nov – Jan (peak: Dec)

4 Eyepiece View

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50x TFOV: 1.0° Lim. mag: 13.6
N E

Collinder 106 · 35.0′ diameter

5 Best Magnification

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 2252
Easy
Open cluster
Open Cluster mag 8.0 0.8° Monoceros
Collinder 104
Easy
Open cluster
Open Cluster mag 9.2 1.1° Monoceros
Collinder 107
Easy
Open cluster
Open Cluster mag 5.1 1.2° Monoceros
Collinder 97
Easy
Open cluster
Open Cluster mag 5.4 1.4° Monoceros
Rosette Nebula
NGC 2237
Medium+
Emission nebula — try an OIII filter
Emission Nebula mag 6.0 1.7° Monoceros
Hubble's Variable Nebula
NGC 2261
Medium
Reflection nebula around a bright star
Reflection Nebula mag 10.0 2.8° Monoceros
Show on Map

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