12160+0538 STF1621

 
 
12h 15m 58.34s +05 38' 24.8" P.A. 46.5 sep 1.73 mag 10.22,10.59 Sp K8 dist. 28.99 pc (94.57 l.y.)
 
 
Coord 2000
12160+0538
Discov num
STF1621
Comp
Coord arcsec 2000
12 15 58.34 +05 38 24.8
Date first
1830
Date last
2017
Obs
103
Pa first
124
Pa last
46
P.A. Now (θ)
46.5°
Sep first
3.4
Sep last
1.8
Sep. Now (ρ)
1.73"
Mag pri
10.22
Mag sec
10.59
delta mag (ΔM)
0.37
Spectral class
K8 (yellow-orange)
Pri motion ra
-320
Sec motion ra
-320
Pri motion dec
-066
Sec motion dec
-066
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
46.4
Precise sep
1.815
Cdsa2 id
STF 1621
Constellation
Virgo
HIP
59816
Tycho2
0287-00337-1
ADS
8486
BD
BD+06 2573
Ra deg
12.266205555555555
De deg
5.640222222222222
Distance
28.99
Distance ly
94.57
last precise pa
46.4
last precise sep
1.815
 
 
ORBITAL ELEMENTS
 
 
Period (P)1100y Periastron (T)1973.67y Semi-major axis (a)3.5a
Eccentricity (e)0.89 Inclination (i)26° Longitude of periastron (ω)275°
Node (Ω) Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 1.226 32.7
2001 1.257 33.8
2002 1.287 34.8
2003 1.317 35.8
2004 1.347 36.7
2005 1.376 37.6
2006 1.405 38.4
2007 1.434 39.2
2008 1.462 40.0
2009 1.490 40.8
2010 1.518 41.5
2011 1.545 42.2
2012 1.572 42.9
2013 1.599 43.5
2014 1.626 44.2
2015 1.652 44.8
2016 1.678 45.4
2017 1.704 45.9
2018 1.729 46.5
2019 1.755 47.0
2020 1.780 47.6
2021 1.805 48.1
2022 1.829 48.6
2023 1.854 49.1
2024 1.878 49.5
2025 1.902 50.0
2026 1.926 50.4
2027 1.949 50.9
2028 1.973 51.3
2029 1.996 51.7
2030 2.019 52.1

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

grafico orbita





wds12160%2B0538a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12160+0538 STF1621 2007 99 40 1.4 10.22 10.59 K8 NO 121558.34+053824.8
12160+0538 STF1621 2010 100 43 1.5 10.22 10.59 K8 NO 121558.34+053824.8
12160+0538 STF1621 2017 103 46 1.8 10.22 10.59 K8 NO 121558.34+053824.8

If you need more information about this double, apply for a data request form to the WDS.