19 Canum Venaticorum — Double Star in Canes Venatici
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1Physical Properties
Magnitude
5.79
Spectral Type
A7V
Star Color
Yellow-white
(B-V 0.19)
2Position & Identifiers
RA
13h 15m 32.0s
Dec
+40° 51' 19.0"
Constellation
Canes Venatici
(CVn)
HR
5004
HIP
64692
HD
115271
SAO
44531
Flamsteed
19 CVn
Querying VizieR catalog...
3How easy to split?
Primary
5.8 mag
Companion
9.5 mag
Separation
0.7″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard | V. hard | V. hard |
| 150 mm Newton 150mm Newt. | V. hard | V. hard | V. hard |
| Celestron C8 (203 mm SCT) C8 203mm | V. hard | V. hard | V. hard |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
To reach "Medium" at Bortle 3, you'd need at least a 630 mm reflector.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Mar – May
(peak: Apr)
5Multiple Star System
Separation
0.7″
Companion Mag
9.5
Position Angle
69°
Star Colors
A: Yellow-white
B: Orange
Discoverer
CHR 180
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 5.8 · B: 9.5 · Sep: 0.7″ · PA: 69° · N up, E right
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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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
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.
M63
Sunflower Galaxy
Bright spiral galaxy
Galaxy
mag 8.6
1.2°
Canes Venatici
17 CVn
Easy double, sep 275.6″
Double Star
mag 5.91
2.6°
Canes Venatici
Alpha2 CVn
COR CAROLI
Easy double, sep 19.2″
Double Star
mag 2.90
4.5°
Canes Venatici
La Superba
HIP 62223
Semi-regular variable, range 4.9–5.9
Variable Star
mag 4.99
7.2°
Canes Venatici
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