Beta Equulei — Star in Equuleus
Observe
1Physical Properties
Magnitude
5.16
Spectral Type
A3V
Star Color
White
(B-V 0.05)
Distance
116 ly
2Position & Identifiers
RA
21h 22m 53.6s
Dec
+06° 48' 40.0"
Constellation
Equuleus
(Equ)
HR
8178
HIP
105570
HD
203562
SAO
126749
Bayer
Beta
Flamsteed
10 Equ
Double Cat
14920
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
Jul – Sep
(peak: Aug)
5Survey Image
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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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14Stellar Notes
Companions optical.
15
Light Travel Time Machine
16
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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Article
Equuleus
Mythology, bright stars, and deep-sky highlights.
Constellation
