Observe
1Properties
Magnitude
6.9
Angular Size
8.7′
Cl, B, pRi, pL, lC, st 9, 12...14
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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.
Collinder 140
Open cluster
Open Cluster
mag 3.5
3.5°
Canis Major
NGC 2489
Open cluster
Open Cluster
mag 7.9
3.7°
Puppis
Aludra
HIP 35904; Eta Canis Majoris; 31 Canis Majoris
Colorful double, sep 177.0″
Double Star
mag 2.45
4.3°
Canis Major
NGC 2453
Open cluster
Open Cluster
mag 8.3
4.7°
Puppis
NGC 2483
Open cluster
Open Cluster
mag 7.6
5.0°
Puppis
29 CMa
Eclipsing binary, period 4.4d
Variable Star
mag 4.98
8.6°
Canis Major
NGC 2325
Elliptical galaxy
Galaxy
mag 11.2
8.7°
Canis Major
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