Observe
1Properties
Magnitude
7.9
Angular Size
5.4′
Cl, P, lC, st 9...
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Position & Identifiers
2How easy to spot?
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Easy | Easy | Easy |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| Celestron C8 (203 mm SCT) C8 203mm | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Easy
on Seestar S50
3Visibility
Set a location in User Settings to see visibility data.
Best season
Dec – Feb
(peak: Jan)
4
Eyepiece View
5
Best Magnification
Explore
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.
M47
NGC 2422
Rich open cluster
Open Cluster
mag 4.4
1.3°
Puppis
NGC 2409
Open cluster
Open Cluster
mag 7.30
1.8°
Puppis
NGC 2423
Rich open cluster
Open Cluster
mag 6.7
1.8°
Puppis
M46
NGC 2437
Open cluster
Open Cluster
mag 6.1
2.2°
Puppis
NGC 2438
Planetary nebula — try an OIII filter
Planetary Nebula
mag 10.0
2.2°
Puppis
R CMa
Eclipsing binary, period 1.1d
Variable Star
mag 5.70
3.4°
Canis Major
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