VV Orionis — Variable Star in Orion
Excellent (62/100)
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1Physical Properties
Magnitude
5.34
Range
5.31 - 5.66
Period
35.6 hours
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
B1V
Star Color
Blue
(B-V -0.18)
2Position & Identifiers
RA
05h 33m 31.4s
Dec
-01° 09' 22.0"
Constellation
Orion
(Ori)
HR
1868
HIP
26063
HD
36695
SAO
132255
Variable ID
VV Ori
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3How easy to follow?
Magnitude
5.3 – 5.7 mag
Amplitude
0.4 mag
Period
1.49 d
Type
EA/KE:
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard+ | V. hard+ | V. hard |
| 50 mm finder 50mm finder | Hard+ | Hard+ | Hard+ |
| 150 mm telescope 150mm scope | Hard+ | Hard+ | Hard+ |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Out of reach for typical amateur telescopes, even at Bortle 3.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Nov – Jan
(peak: Dec)
5Survey Image
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6Light Curve
7Comparison Stars for VV Ori (5.3–5.7)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
8
Size Comparison
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9
Compare Stars
10
Spectral Classification
11
Hertzsprung-Russell Diagram
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12
Stellar Lifecycle
13
Blackbody Spectrum
14
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
15
Stellar Fusion
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16Stellar Notes
EA 5.31 - 5.66V, 5.14 - 5.51p, B1V + B7V, 1.4853784d, i 80.9d. A third component has orbital period 119.09d.
AB, 1.4854d, K 128.6k/s, V0 +22.1k/s, msin3i 7.56, asini 2.63; ABC, 119.088d, K 13.5k/s, V0 +3.3k/s, asini | 21.2. Spectra (A)B1V, (B)B5-B9V, (C)A7V. Masses 7.6, 3.42, 1.5 solar, respectively.
Ori OB1b2; Orion belt.
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.
Orion's Belt
Noteworthy asterism
Asterism
mag 0.4
0.5°
Orion
Alnilam
HIP 26311; Epsilon Orionis; 46 Orionis
Bright naked-eye star, mag 1.7
Double Star
mag 1.70
0.7°
Orion
NGC 1981
Rich open cluster
Open Cluster
mag 4.6
3.3°
Orion
W Ori
Semi-regular variable, range 5.5–6.9
Variable Star
mag 6.17
7.4°
Orion
66 Eri
Variable star, range 5.1–5.6
Variable Star
mag 5.12
7.5°
Eridanus
V1031 Ori
Eclipsing binary, period 3.4d
Variable Star
mag 6.03
10.0°
Orion
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