Observe
1Properties
Magnitude
11.0
Angular Size
2.8′
glob. cl. , B, pL, R, gmbM, r
Querying SIMBAD database...
Position & Identifiers
2How easy to spot?
Sign in
and configure your equipment and default location to see a personalized row.
| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Medium | Hard+ | Hard |
| 150 mm Newton 150mm Newt. | Easy | Medium+ | Medium |
| Celestron C8 (203 mm SCT) C8 203mm | Easy | Easy | Medium+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Medium
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 2133
Compact globular cluster
Globular Cluster
mag 12.04
0.1°
Mensa
NGC 2145
Open cluster
Open Cluster
mag 12.07
0.3°
Mensa
NGC 2111
Open cluster
Open Cluster
mag 12.45
0.6°
Mensa
NGC 2107
Open cluster
Open Cluster
mag 11.0
0.9°
Mensa
NGC 2051
Open cluster
Open Cluster
mag 11.69
1.3°
Mensa
NGC 2018
Emission nebula — try an OIII filter
Emission Nebula
mag 10.89
1.7°
Mensa
NGC 2069
Diffuse nebula
Diffuse Nebula
mag 10.10
2.4°
Dorado
Explore Nightbase
Related knowledge, tools, and stories — no observation planning required.
The Hertzsprung-Russell Diagram — Reading Stars Like a Map
The HR diagram turns the night sky into a physics map: every named star has a spot, every spot tells you mass, age, and fate. A guide for amateur observers.
Article
Mensa
Mythology, bright stars, and deep-sky highlights.
Constellation
Mars
Polar caps, dust storms, and observing its oppositions.
Deep dive
