13039-0340 BU 929 (48 Vir)
13h 03m 54.42s -03° 39' 47.3" P.A. 188.00 sep 0.4 mag 7.12,7.65 Sp F0V dist. 155.04 pc (505.74 l.y.)
Coord 2000 |
13039-0340 |
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Discov num |
BU 929 |
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Comp |
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Coord arcsec 2000 |
13 03 54.42 -03 39 47.3 |
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Date first |
1879 |
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Date last |
2018 |
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Obs |
169 |
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Pa first |
229 |
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Pa last |
188.3 |
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P.A. Now (θ) |
188.3° |
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Sep first |
0.5 |
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Sep last |
0.433 |
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Sep. Now (ρ) |
0.433" |
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Mag pri |
7.12 |
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Mag sec |
7.65 |
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delta mag (ΔM) |
0.53 |
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Spectral class |
F0V (yellow-white) |
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Pri motion ra |
-034 |
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Sec motion ra |
-034 |
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Pri motion dec |
-036 |
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Sec motion dec |
-036 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
48 Vir |
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Constellation |
Virgo |
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SAO |
139131 |
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HIP |
63750 |
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Tycho2 |
4960-01344-1 |
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Gaia DR2 |
3684306371953952896 |
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HD |
113459 |
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HR |
4937 |
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GC |
17715 |
|
ADS |
8759 |
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BD |
BD-02 3622 |
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Flamsteed |
48 Virginis |
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Flamsteed name |
48 Vir |
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Distance |
155.04 |
|
Distance ly |
505.74 |
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ORBITAL ELEMENTS
Period (P) | 438y | |
Periastron (T) | 2173.4y | |
Semi-major axis (a) | 0.781a | |
Eccentricity (e) | 0 | |
Inclination (i) | 101.1° | |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 25.9° | |
Notes | n | |
Reference | Zir2013a | |
Equinox | 2000 | |
Last observation | 2007 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
197.5 |
0.626 |
2001 |
197.3 |
0.620 |
2002 |
197.0 |
0.613 |
2003 |
196.7 |
0.606 |
2004 |
196.5 |
0.600 |
2005 |
196.2 |
0.593 |
2006 |
195.9 |
0.585 |
2007 |
195.6 |
0.578 |
2008 |
195.3 |
0.571 |
2009 |
195.0 |
0.564 |
2010 |
194.7 |
0.556 |
2011 |
194.4 |
0.548 |
2012 |
194.1 |
0.541 |
2013 |
193.8 |
0.533 |
2014 |
193.4 |
0.525 |
2015 |
193.1 |
0.517 |
2016 |
192.7 |
0.509 |
2017 |
192.3 |
0.501 |
2018 |
191.9 |
0.492 |
2019 |
191.5 |
0.484 |
2020 |
191.1 |
0.476 |
2021 |
190.7 |
0.467 |
2022 |
190.2 |
0.459 |
2023 |
189.7 |
0.450 |
2024 |
189.3 |
0.441 |
2025 |
188.8 |
0.433 |
2026 |
188.2 |
0.424 |
2027 |
187.7 |
0.415 |
2028 |
187.1 |
0.406 |
2029 |
186.5 |
0.397 |
2030 |
185.9 |
0.388 |
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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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