V1143 Cygni — Variable Star in Cygnus
Excellent (66/100)
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1Physical Properties
Magnitude
5.82
Range
5.85 - 6.37
Period
7.6 days
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
F6Va
Star Color
Yellow
(B-V 0.44)
Distance
91 ly
2Position & Identifiers
RA
19h 38m 41.2s
Dec
+54° 58' 26.0"
Constellation
Cygnus
(Cyg)
HR
7484
HIP
96620
HD
185912
SAO
31850
Variable ID
V1143 Cyg
Querying VizieR catalog...
3How easy to follow?
Magnitude
5.9 – 6.4 mag
Amplitude
0.5 mag
Period
7.64 d
Type
EA/DM
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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 | Hard+ | Hard+ |
| 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
Jun – Aug
(peak: Jul)
5Survey Image
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6Light Curve
7Comparison Stars for V1143 Cyg (5.8–6.4)
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
EA 5.85 - 6.37V, 7.6407613d.
7.6408d, K 87.1k/s, V0 -15.9k/s, msin3i 1.33, asini 7.70.
Also classified F5V + F5V.
17
Light Travel Time Machine
18
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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