Zeta Monocerotis — Star in Monoceros
Observe
1Physical Properties
Magnitude
4.34
Spectral Type
G2Ib
supergiant
Star Color
Orange
(B-V 0.97)
Distance
1,087 ly
2Position & Identifiers
RA
08h 08m 35.6s
Dec
-02° 59' 02.0"
Constellation
Monoceros
(Mon)
HR
3188
HIP
39863
HD
67594
SAO
135551
Bayer
Zeta
Flamsteed
29 Mon
Double Cat
6617
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium+ | Medium+ | Medium |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Dec – Feb
(peak: Jan)
5Survey Image
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Explore
7
Size Comparison
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8
Compare Stars
9
Spectral Classification
10
Hertzsprung-Russell Diagram
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11
Stellar Lifecycle
12
Blackbody Spectrum
13
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
14
Stellar Fusion
Discover
15Stellar Notes
B, 10.1v G8II at 33" optical. C is K2III.
Group around Zeta Mon.
16
Light Travel Time Machine
17
Relativistic Travel
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.
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Monoceros
Mythology, bright stars, and deep-sky highlights.
Constellation
