09307-4028 COP 1 (Psi Vel)
09h 30m 41.97s -40° 28' 00.2" P.A. 139.00 sep 0.9 mag 3.91,5.12 Sp F0IV+F3IV dist. 18.81 pc (61.36 l.y.)
Coord 2000 |
09307-4028 |
|
Discov num |
COP 1 |
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Comp |
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Coord arcsec 2000 |
09 30 41.97 -40 28 00.2 |
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Date first |
1883 |
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Date last |
2021 |
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Obs |
167 |
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Pa first |
45 |
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Pa last |
139 |
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P.A. Now (θ) |
146.4° |
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Sep first |
0.8 |
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Sep last |
0.898 |
|
Sep. Now (ρ) |
0.815" |
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Mag pri |
3.91 |
|
Mag sec |
5.12 |
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delta mag (ΔM) |
1.21 |
|
Spectral class |
F0IV+F3IV (yellow-white/yellow-white) |
|
Pri motion ra |
-191 |
|
Sec motion ra |
-191 |
|
Pri motion dec |
+073 |
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Sec motion dec |
+073 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
Psi Vel |
|
Var name |
NSV4513 Vel |
|
Constellation |
Vela |
|
SAO |
221234 |
|
HIP |
46651 |
|
Tycho2 |
7696-02620-1 |
|
Gaia DR2 |
5426587107145955712 |
|
HD |
82434 |
|
HR |
3786 |
|
GC |
13140 |
|
GL |
Gl 351A |
|
CD |
CD-39 5580 |
|
CP |
CP-39 3651 |
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Bayer |
Psi Velorum |
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Bayer name |
Psi Vel |
|
Distance |
18.81 |
|
Distance ly |
61.36 |
|
Bayer greek |
ψ Vel |
|
ORBITAL ELEMENTS
Period (P) | 34.12y | ± 0.13 |
Periastron (T) | 2004.07y | ± 0.04 |
Semi-major axis (a) | 0.81a | ± 0.002 |
Eccentricity (e) | 0.439 | ± 0.003 |
Inclination (i) | 58.4° | ± 0.2 |
Longitude of periastron (ω) | 47.7° | ± 0.6 |
Node (Ω) | 288.2° | ± 0.1 |
Notes | n | |
Reference | Msn2021a | |
Equinox | | |
Last observation | 2021 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
261.0 |
0.534 |
2001 |
272.2 |
0.541 |
2002 |
283.7 |
0.522 |
2003 |
297.0 |
0.461 |
2004 |
316.3 |
0.361 |
2005 |
351.2 |
0.267 |
2006 |
38.2 |
0.284 |
2007 |
67.7 |
0.401 |
2008 |
82.8 |
0.537 |
2009 |
91.9 |
0.662 |
2010 |
98.3 |
0.767 |
2011 |
103.3 |
0.852 |
2012 |
107.5 |
0.918 |
2013 |
111.1 |
0.966 |
2014 |
114.5 |
1.000 |
2015 |
117.7 |
1.019 |
2016 |
120.8 |
1.026 |
2017 |
123.9 |
1.021 |
2018 |
127.1 |
1.006 |
2019 |
130.4 |
0.982 |
2020 |
133.9 |
0.950 |
2021 |
137.6 |
0.911 |
2022 |
141.8 |
0.865 |
2023 |
146.4 |
0.815 |
2024 |
151.6 |
0.761 |
2025 |
157.7 |
0.706 |
2026 |
164.8 |
0.650 |
2027 |
173.2 |
0.598 |
2028 |
183.1 |
0.552 |
2029 |
194.6 |
0.515 |
2030 |
207.5 |
0.493 |
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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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