12485-1543 WSI 74 Aa,Ab
12h 48m 32.31s -15° 43' 10.1" P.A. 153.00 sep 0.1 mag 8.20,9.60 Sp K2.5V dist. 23.83 pc (77.73 l.y.)
| Coord 2000 |
12485-1543 |
|
Discov num |
WSI 74 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
12 48 32.31 -15 43 10.1 |
|
| Date first |
2001 |
|
Date last |
2021 |
|
Obs |
33 |
|
| Pa first |
77 |
|
Pa last |
153.2 |
|
P.A. Now (θ) |
153.2° |
|
| Sep first |
0.1 |
|
Sep last |
0.091 |
|
Sep. Now (ρ) |
0.091" |
|
| Mag pri |
8.20 |
|
Mag sec |
9.60 |
|
delta mag (ΔM) |
1.4 |
|
Spectral class |
K2.5V (yellow-orange) |
|
| Pri motion ra |
+083 |
|
Sec motion ra |
|
|
| Pri motion dec |
+041 |
|
Sec motion dec |
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|
| Notes |
O
(Orbital solution) |
|
This double is physical.
12485-1543 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
157520 |
12 48 32 -15 43 10 |
WSI 74 Aa,Ab |
2021 |
33 |
153 |
0.1 |
8.20 |
9.60 |
1.40 |
Y |
<=== |
| Show |
VZ Crv |
157520 |
12 48 32 -15 43 10 |
HDS 1795 AB |
1991 |
2 |
63 |
2.7 |
7.99 |
12.26 |
4.27 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
VZ Crv |
|
Constellation |
Corvus |
|
SAO |
157520 |
|
HIP |
62505 |
|
| Tycho2 |
6111-01825-1 |
|
Gaia DR2 |
3523699441470095104 |
|
HD |
111312 |
|
GL |
GJ 1165 |
|
| BD |
BD-14 3581 |
|
Distance |
23.83 |
|
Distance ly |
77.73 |
|
ORBITAL ELEMENTS
| Period (P) | 2.661y | ± 0.002 |
Periastron (T) | 2011.094y | ± 0.005 |
Semi-major axis (a) | 0.0843a | ± 0.0008 |
| Eccentricity (e) | 0.508 | ± 0.007 |
Inclination (i) | 55.3° | ± 0.8 |
Longitude of periastron (ω) | 145.6° | ± 1.3 |
| Node (Ω) | 146.6° | ± 0.9 |
Notes | | |
Reference | Tok2017b | |
| Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
161.5 |
0.079 |
| 2001 |
68.0 |
0.054 |
| 2002 |
133.0 |
0.118 |
| 2003 |
248.0 |
0.027 |
| 2004 |
103.9 |
0.083 |
| 2005 |
144.9 |
0.110 |
| 2006 |
0.5 |
0.046 |
| 2007 |
121.3 |
0.108 |
| 2008 |
162.8 |
0.077 |
| 2009 |
70.7 |
0.055 |
| 2010 |
133.6 |
0.118 |
| 2011 |
258.9 |
0.027 |
| 2012 |
105.0 |
0.085 |
| 2013 |
145.6 |
0.109 |
| 2014 |
4.3 |
0.046 |
| 2015 |
122.0 |
0.109 |
| 2016 |
164.3 |
0.074 |
| 2017 |
73.3 |
0.057 |
| 2018 |
134.2 |
0.118 |
| 2019 |
269.4 |
0.028 |
| 2020 |
106.1 |
0.086 |
| 2021 |
146.3 |
0.108 |
| 2022 |
8.1 |
0.046 |
| 2023 |
122.7 |
0.109 |
| 2024 |
165.8 |
0.071 |
| 2025 |
75.7 |
0.058 |
| 2026 |
134.7 |
0.118 |
| 2027 |
279.0 |
0.030 |
| 2028 |
107.2 |
0.088 |
| 2029 |
147.0 |
0.107 |
| 2030 |
11.9 |
0.046 |
|
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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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