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 Discov num BU  929 Comp Coord arcsec 2000 13 03 54.42 -03 39 47.3
Date first 1879 Date last 2018 Obs 169
Pa first 229 Pa last 188.3 P.A. Now (θ) 188.3°
Sep first 0.5 Sep last 0.433 Sep. Now (ρ) 0.433"
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 Gaia DR2 3684306371953952896 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
 
 
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° Notesn ReferenceZir2013a
Equinox2000 Last observation2007 Grade4(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


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



 
 


wds13039-0340a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic