20 Canum Venaticorum — Star in Canes Venatici
Observe
1Physical Properties
Magnitude
4.73
Range
4.7 - 4.75
Period
2.9 hours
Variable Type
Delta Scuti (Low Amplitude)
Spectral Type
F3III
giant
Star Color
Yellow-white
(B-V 0.30)
Distance
172 ly
2Position & Identifiers
RA
13h 17m 32.5s
Dec
+40° 34' 21.0"
Constellation
Canes Venatici
(CVn)
HR
5017
HIP
64844
HD
115604
SAO
44549
Flamsteed
20 CVn
Variable ID
AO CVn
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium+ | Medium | Hard+ |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | Easy | Easy | Easy |
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
Mar – May
(peak: Apr)
5Survey Image
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Explore
6
Size Comparison
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7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
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14Stellar Notes
Delta Sct 4.70 - 4.75V, 0.12168d. Var. amp.?
Amp. 1.5k/s, 0.135d or 0.176d.
Hyades group?
MgII 4481 anomalously strong.
15
Light Travel Time Machine
16
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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Canes Venatici
Mythology, bright stars, and deep-sky highlights.
Constellation
