Observe
1Properties
Magnitude
10.20
Angular Size
8.9′ × 5.6′
Position Angle
30°
Cl, vlCM, st 9, 11...16
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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. | Medium+ | Medium | Hard+ |
| 150 mm Newton 150mm Newt. | Easy | Easy | Medium+ |
| 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
Nov – Jan
(peak: Dec)
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.
NGC 1815
Open cluster
Open Cluster
mag 12.41
0.3°
Mensa
NGC 1823
Open cluster
Open Cluster
mag 12.09
0.3°
Mensa
NGC 1766
Open cluster
Open Cluster
mag 12.22
0.9°
Mensa
NGC 1754
Compact globular cluster
Globular Cluster
mag 11.57
1.0°
Mensa
NGC 1801
Open cluster
Open Cluster
mag 12.16
1.1°
Dorado
IC 2105
Diffuse nebula
Diffuse Nebula
mag 11.30
2.0°
Dorado
NGC 2018
Emission nebula — try an OIII filter
Emission Nebula
mag 10.89
2.2°
Mensa
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