Eta Cancri — Star in Cancer
Observe
1Physical Properties
Magnitude
5.33
Spectral Type
K3III
giant
Star Color
Red
(B-V 1.25)
Distance
251 ly
2Position & Identifiers
RA
08h 32m 42.5s
Dec
+20° 26' 28.0"
Constellation
Cancer
(Cnc)
HR
3366
HIP
41909
HD
72292
SAO
80243
Bayer
Eta
Flamsteed
33 Cnc
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium | Hard+ | Hard |
| 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
6
Size Comparison
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7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
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14
Light Travel Time Machine
15
Relativistic Travel
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Visibility scores assume a 150 mm Newton at Bortle 4.
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Article
Cancer
Mythology, bright stars, and deep-sky highlights.
Constellation
