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Collinder 173 — Open Cluster in Vela

Open Cluster Good (56/100)
Magnitude 0.6m OpenCluster Vela Visible
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1Properties

Magnitude 0.6
Angular Size 370 arcmin
Open Cluster

Position & Identifiers

RA 08h 02m 49.0s
Dec -46° 22' 60.0"
Constellation Vela
Catalog Cr 173

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

Medium on Seestar S50

3Visibility

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Best season Dec – Feb (peak: Jan)

4 Eyepiece View

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19x TFOV: 2.3° Lim. mag: 13.6
N E

Collinder 173 · 370.0′ 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.

Gamma Vel
HIP 39953; Gamma1 Velorum
Easy
Easy double, sep 60.9″
Double Star mag 4.27 1.5° Vela
AH Vel
Hard+
Pulsating variable, period 4.2d
Variable Star mag 5.76 1.6° Vela
IS Vel
Easy
Hot blue O-type star
Star mag 5.23 1.9° Vela
NGC 2547
Easy
Rich open cluster
Open Cluster mag 4.7 3.1° Vela
NGC 2502
Medium
Bright spiral galaxy
Galaxy mag 11.96 6.0° Carina
NGC 2645
Easy
Open cluster
Open Cluster mag 7.32 6.3° Vela
Melotte 66
Easy
Open cluster
Open Cluster mag 7.8 6.3° Puppis
IC 2395
Easy
Rich open cluster
Open Cluster mag 4.6 6.7° Vela
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