V1010 Ophiuchi — Variable Star in Ophiuchus
Good (57/100)
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1Physical Properties
Magnitude
6.10
Range
6.10 - 7.00
Period
15.9 hours
Variable Type
Eclipsing Binary (Beta Lyrae-type)
Spectral Type
A5V
2Position & Identifiers
RA
16h 49m 27.8s
Dec
-15° 40' 03.0"
Constellation
Ophiuchus
(Oph)
HR
6240
HIP
82339
HD
151676
SAO
160116
Variable ID
V1010 Oph
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3How easy to follow?
Magnitude
6.1 – 7.0 mag
Amplitude
0.9 mag
Period
15.9 h
Type
EB/KE
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard | V. hard | Imp. |
| 50 mm finder 50mm finder | Medium+ | Medium+ | Medium |
| 150 mm telescope 150mm scope | Medium+ | Medium+ | Medium+ |
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
Apr – Jun
(peak: May)
5Survey Image
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6Light Curve
7Comparison Stars for V1010 Oph (6.1–7.0)
Nearby stable stars for estimating brightness (AAVSO)
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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
EB 6.1 - 7.00v, 0.6614261d. Period varies. Contact binary. Temperature discontinuity at interface. All photometric | indices variable. Four-color measures by Gronbech and Olsen give +0.129(b-y), +0.184(m1), +0.887(c1), 2.810(beta) | from 3 observations.
0.6614d, K 105.5k/s, V0 -35.4k/s, asini 0.957. Mass exchange. Masses 2 and 1 solar, radii 2.1 and 1.5 solar.
Primary A7IV-V, secondary G3V. UV spectra taken from IUE show absorption Fe, Si and C in the A component.
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
Ophiuchus
Mythology, bright stars, and deep-sky highlights.
Constellation
