13039-0340 BU  929 (48 Vir)

 
 
13H 03M 54.42S -03 39' 47.3" P.A. 191.9 SEP 0.49 MAG 7.12,7.65 SP F0V DIST. 155.04 PC (505.74 L.Y.)
 
 
Coord 2000
13039-0340
Discov num
BU  929
Comp
Coord arcsec 2000
13 03 54.42 -03 39 47.3
Date first
1879
Date last
2016
Obs
168
Pa first
229
Pa last
194
P.A. Now (θ)
191.9°
Sep first
0.5
Sep last
0.6
Sep. Now (ρ)
0.49"
Mag pri
7.12
Mag sec
7.65
delta mag (ΔM)
0.53
Spectral class
F0V (yellow-white)
Pri motion ra
-034
Sec motion ra
-034
Pri motion dec
-036
Sec motion dec
-036
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
48 Vir
Constellation
Virgo
SAO
139131
HIP
63750
Tycho2
4960-01344-1
HD
113459
HR
4937
GC
17715
ADS
8759
BD
BD-02 3622
Flamsteed
48 Virginis
Flamsteed name
48 Vir
Distance
155.04
Distance ly
505.74
last precise pa
193.9
last precise sep
0.634
 
 
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)
Node (Ω)25.9° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2007
label rho theta
2000 0.626 197.5
2001 0.620 197.3
2002 0.613 197.0
2003 0.606 196.7
2004 0.600 196.5
2005 0.593 196.2
2006 0.585 195.9
2007 0.578 195.6
2008 0.571 195.3
2009 0.564 195.0
2010 0.556 194.7
2011 0.548 194.4
2012 0.541 194.1
2013 0.533 193.8
2014 0.525 193.4
2015 0.517 193.1
2016 0.509 192.7
2017 0.501 192.3
2018 0.492 191.9
2019 0.484 191.5
2020 0.476 191.1
2021 0.467 190.7
2022 0.459 190.2
2023 0.450 189.7
2024 0.441 189.3
2025 0.433 188.8
2026 0.424 188.2
2027 0.415 187.7
2028 0.406 187.1
2029 0.397 186.5
2030 0.388 185.9

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic