HIP 97142 — Variable Star in Cygnus
Good (57/100)
Observe
1Physical Properties
Magnitude
6.57
Range
6.32 - 6.73
Period
80 days
Variable Type
Semi-Regular Variable
Spectral Type
M1III
giant
2Position & Identifiers
RA
19h 44m 38.2s
Dec
+34° 24' 50.0"
Constellation
Cygnus
(Cyg)
HR
7520
HIP
97142
HD
186702
SAO
68783
Querying VizieR catalog...
3How easy to follow?
Magnitude
6.3 – 6.7 mag
Amplitude
0.4 mag
Period
79.7 d
Type
SR
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | V. hard | Imp. | Imp. |
| 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
Jun – Aug
(peak: Jul)
5Survey Image
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6Light Curve
7Comparison Stars for HIP 97142 (6.3–6.7)
Nearby stable stars for estimating brightness (AAVSO)
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Explore
8
Size Comparison
Querying VizieR for stellar data…
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
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 6871
Rich open cluster
Open Cluster
mag 5.2
4.6°
Cygnus
SU Cyg
Pulsating variable, period 3.8d
Variable Star
mag 6.82
5.1°
Cygnus
V973 Cyg
Semi-regular variable, range 6.1–6.8
Variable Star
mag 6.34
6.3°
Cygnus
Crescent nebula
NGC 6888
Emission nebula — try an OIII filter
Emission Nebula
mag 7.44
6.8°
Cygnus
RS Cyg
Mira-type variable, range 6.5–9.5
Variable Star
mag 6.50
7.2°
Cygnus
V473 Lyr
Pulsating variable, period 1.5d
Variable Star
mag 6.16
8.9°
Lyra
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