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 |
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Discov num |
CHR 180 |
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Comp |
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Coord arcsec 2000 |
13 15 32.05 +40 51 18.6 |
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Date first |
1988 |
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Date last |
2012 |
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Obs |
15 |
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Pa first |
2 |
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Pa last |
57.7 |
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P.A. Now (θ) |
57.7° |
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Sep first |
0.3 |
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Sep last |
0.618 |
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Sep. Now (ρ) |
0.618" |
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Mag pri |
5.87 |
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Mag sec |
9.48 |
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delta mag (ΔM) |
3.61 |
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Spectral class |
A7V (white) |
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Pri motion ra |
-111 |
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Sec motion ra |
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Pri motion dec |
+011 |
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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 |
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Constellation |
Canes Venatici |
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SAO |
44531 |
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HIP |
64692 |
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Tycho2 |
3022-02305-1 |
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Gaia DR2 |
1524888216726645248 |
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HD |
115271 |
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HR |
5004 |
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GC |
17953 |
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BD |
BD+41 2374 |
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Flamsteed |
19 Canum Venaticorum |
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Flamsteed name |
19 CVn |
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Distance |
74.07 |
|
Distance ly |
241.62 |
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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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