13155+4051 CHR 180 (19 CVn)
13h 15m 32.05s +40° 51' 18.6" P.A. 58.00 sep 0.6 mag 5.87,9.48 Sp A7V dist. 74.07 pc (241.62 l.y.)
| Coord 2000 |
13155+4051 |
|
Discov num |
CHR 180 |
|
Comp |
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|
Coord arcsec 2000 |
13 15 32.05 +40 51 18.6 |
|
| Date first |
1988 |
|
Date last |
2012 |
|
Obs |
15 |
|
| Pa first |
2 |
|
Pa last |
57.7 |
|
P.A. Now (θ) |
57.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.618 |
|
Sep. Now (ρ) |
0.618" |
|
| Mag pri |
5.87 |
|
Mag sec |
9.48 |
|
delta mag (ΔM) |
3.61 |
|
Spectral class |
A7V (white) |
|
| Pri motion ra |
-111 |
|
Sec motion ra |
|
|
| Pri motion dec |
+011 |
|
Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
19 CVn |
|
Constellation |
Canes Venatici |
|
SAO |
44531 |
|
HIP |
64692 |
|
| Tycho2 |
3022-02305-1 |
|
Gaia DR2 |
1524888216726645248 |
|
HD |
115271 |
|
HR |
5004 |
|
| GC |
17953 |
|
BD |
BD+41 2374 |
|
Flamsteed |
19 Canum Venaticorum |
|
Flamsteed name |
19 CVn |
|
| Distance |
74.07 |
|
Distance ly |
241.62 |
|
ORBITAL ELEMENTS
| Period (P) | 219.2y | |
Periastron (T) | 2201.7y | |
Semi-major axis (a) | 0.745a | |
| Eccentricity (e) | 0.686 | |
Inclination (i) | 44.5° | |
Longitude of periastron (ω) | 273.3° | |
| Node (Ω) | 22.2° | |
Notes | | |
Reference | Cve2015b | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
39.9 |
0.500 |
| 2001 |
41.8 |
0.513 |
| 2002 |
43.5 |
0.526 |
| 2003 |
45.2 |
0.538 |
| 2004 |
46.8 |
0.550 |
| 2005 |
48.3 |
0.562 |
| 2006 |
49.8 |
0.572 |
| 2007 |
51.2 |
0.583 |
| 2008 |
52.6 |
0.593 |
| 2009 |
53.9 |
0.603 |
| 2010 |
55.2 |
0.612 |
| 2011 |
56.4 |
0.621 |
| 2012 |
57.6 |
0.630 |
| 2013 |
58.8 |
0.638 |
| 2014 |
60.0 |
0.646 |
| 2015 |
61.1 |
0.654 |
| 2016 |
62.2 |
0.662 |
| 2017 |
63.2 |
0.669 |
| 2018 |
64.3 |
0.676 |
| 2019 |
65.3 |
0.683 |
| 2020 |
66.3 |
0.690 |
| 2021 |
67.3 |
0.697 |
| 2022 |
68.3 |
0.703 |
| 2023 |
69.2 |
0.709 |
| 2024 |
70.1 |
0.715 |
| 2025 |
71.1 |
0.721 |
| 2026 |
72.0 |
0.727 |
| 2027 |
72.9 |
0.732 |
| 2028 |
73.7 |
0.738 |
| 2029 |
74.6 |
0.743 |
| 2030 |
75.4 |
0.748 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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