Gamma Equulei — Star in Equuleus
Observe
1Physical Properties
Magnitude
4.69
Range
4.70 - 4.71
Period
0.2 hours
Variable Type
roAp
Spectral Type
F0IIIp
bright giant
Star Color
Yellow-white
(B-V 0.26)
Distance
116 ly
2Position & Identifiers
RA
21h 10m 20.5s
Dec
+10° 07' 54.0"
Constellation
Equuleus
(Equ)
HR
8097
HIP
104521
HD
201601
SAO
126593
Bayer
Gamma
Flamsteed
5 Equ
Variable ID
Gam Equ
Double Cat
14702
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium+ | Medium | 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
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Best season
Jul – Sep
(peak: Aug)
5Survey Image
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6
Size Comparison
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7
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8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
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13
Stellar Fusion
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14Stellar Notes
ADS 14702A, Alpha CV 4.58 - 4.77V, 314d, 0 00868d. Magnetic field var. 1786d and 72y. Spectrum var. 72y.
AB binary, B, 11.6v at 2". C, 12.6v at 48" optical.
Wolf 630 group.
Extreme oxygen deficiency. Eu, Cr, Sr strong, DyIII identified. The spectrum has been variously classified as cF1, | F0III, and F0pV. | Also classified A9Vp(SrCrEu st.,Ca wk.).
0.011".
1786d, possibly also short period? Rotation 17.492d?
3 solar radii.
15
Light Travel Time Machine
16
Relativistic Travel
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Visibility scores assume a 150 mm Newton at Bortle 4.
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Article
Equuleus
Mythology, bright stars, and deep-sky highlights.
Constellation
