U Vulpeculae — Variable Star in Vulpecula
Excellent (62/100)
Observe
1Physical Properties
Magnitude
7.14
Range
6.73 - 7.54
Period
8.0 days
Variable Type
Classical Cepheid
Spectral Type
F2-F8Iab
Star Color
Yellow-white
(B-V 1.32)
(reddened by dust)
2Position & Identifiers
RA
19h 36m 37.7s
Dec
+20° 19' 58.0"
Constellation
Vulpecula
(Vul)
HR
7458
HIP
96458
HD
185059
SAO
87447
Variable ID
U Vul
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3How easy to follow?
Magnitude
6.8 – 7.5 mag
Amplitude
0.7 mag
Period
7.99 d
Type
DCEP
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Imp. | Imp. | Imp. |
| 50 mm finder 50mm finder | Medium | Medium | 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 U Vul (6.8–7.5)
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
Discover
16Stellar Notes
CDelta 6.78 - 7.51V, 7.990676d.
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.
NGC 6802
Open cluster
Open Cluster
mag 8.8
1.4°
Vulpecula
U Sge
Eclipsing binary, period 3.4d
Variable Star
mag 6.58
4.2°
Sagitta
M71
NGC 6838
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 8.3
4.3°
Sagitta
10 Sge
Pulsating variable, period 8.4d
Variable Star
mag 5.36
5.9°
Sagitta
V473 Lyr
Pulsating variable, period 1.5d
Variable Star
mag 6.16
8.9°
Lyra
SU Cyg
Pulsating variable, period 3.8d
Variable Star
mag 6.82
9.1°
Cygnus
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