13120+3205 STT 261

 
 
13h 12m 02.02s +32 05' 07.9" P.A. 338.30 sep 2.6 mag 7.40,7.64 Sp F6V dist. 72.52 pc (236.56 l.y.)
 
 
Coord 2000
13120+3205
Discov num
STT 261
Comp
Coord arcsec 2000
13 12 02.02 +32 05 07.9
Date first
1843
Date last
2020
Obs
270
Pa first
0
Pa last
337
P.A. Now (θ)
338.3°
Sep first
0.5
Sep last
2.5
Sep. Now (ρ)
2.63"
Mag pri
7.40
Mag sec
7.64
delta mag (ΔM)
0.24
Spectral class
F6V (yellow-white)
Pri motion ra
+015
Sec motion ra
+015
Pri motion dec
-006
Sec motion dec
-006
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
337.4
Precise sep
2.53
Constellation
Canes Venatici
SAO
63396
HIP
64405
Tycho2
2535-01164-1
Gaia DR2
67153271040
HD
114723
ADS
8814
BD
BD+32 2327
Distance
72.52
Distance ly
236.56
last precise pa
337.4
last precise sep
2.53
 
 
ORBITAL ELEMENTS
 
 
Period (P)772.2055y± 466.7683 Periastron (T)1786.7195y± 29.908 Semi-major axis (a)1.75903a± 0.7946
Eccentricity (e)0.75082± 0.16401 Inclination (i)105.752°± 8.195 Longitude of periastron (ω)359.793°± 52.637
Node (Ω)153.64°± 6.404 Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 2.497 339.1
2001 2.504 339.1
2002 2.511 339.0
2003 2.518 339.0
2004 2.525 339.0
2005 2.531 338.9
2006 2.538 338.9
2007 2.545 338.8
2008 2.551 338.8
2009 2.558 338.8
2010 2.565 338.7
2011 2.571 338.7
2012 2.578 338.6
2013 2.584 338.6
2014 2.590 338.6
2015 2.597 338.5
2016 2.603 338.5
2017 2.609 338.4
2018 2.616 338.4
2019 2.622 338.4
2020 2.628 338.3
2021 2.634 338.3
2022 2.640 338.3
2023 2.646 338.2
2024 2.652 338.2
2025 2.658 338.1
2026 2.664 338.1
2027 2.669 338.1
2028 2.675 338.0
2029 2.681 338.0
2030 2.686 338.0

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






wds13120%2B3205c.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
13120+3205 STT 261 2007 228 339 2.5 7.40 7.64 F6V NLD 131202.02+320507.9
13120+3205 STT 261 2008 230 339 2.5 7.40 7.64 F6V NLD 131202.02+320507.9
13120+3205 STT 261 2009 235 339 2.6 7.40 7.64 F6V NLD 131202.02+320507.9
13120+3205 STT 261 2010 236 339 2.5 7.40 7.64 F6V NLD 131202.02+320507.9
13120+3205 STT 261 2011 248 339 2.5 7.40 7.64 F6V NLD 131202.02+320507.9
13120+3205 STT 261 2013 252 339 2.6 7.40 7.64 F6V NCD 131202.02+320507.9
13120+3205 STT 261 2014 253 338 2.5 7.40 7.64 F6V NCD 131202.02+320507.9
13120+3205 STT 261 2015 256 339 2.6 7.40 7.64 F6V NO 131202.02+320507.9
13120+3205 STT 261 2017 261 339 2.6 7.40 7.64 F6V NO 131202.02+320507.9
13120+3205 STT 261 2020 270 337 2.5 7.40 7.64 F6V NO 131202.02+320507.9

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