09210+3811 STF1338AB

 
 
09h 20m 59.40s +38 11' 17.9" P.A. 318.2 sep 1 mag 6.72,7.08 Sp F2V+F4V dist. 42.66 pc (139.16 l.y.)
 
 
Coord 2000
09210+3811
Discov num
STF1338
Comp
AB
Coord arcsec 2000
09 20 59.40 +38 11 17.9
Date first
1829
Date last
2017
Obs
434
Pa first
121
Pa last
312
P.A. Now (θ)
318.2°
Sep first
1.8
Sep last
1.2
Sep. Now (ρ)
1"
Mag pri
6.72
Mag sec
7.08
delta mag (ΔM)
0.36
Spectral class
F2V+F4V (yellow-white/yellow-white)
Pri motion ra
-020
Sec motion ra
-020
Pri motion dec
-023
Sec motion dec
-023
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
09210+3811 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 61411 09210+3811 STF1338 AB 1829 2017 434 318 1.0 6.72 7.08 0.36 Y <===
Show 61411 09210+3811 STF1338 AB,C 1879 2009 17 166 144.0 6.12 12.59 6.47
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
311.6
Precise sep
1.163
Constellation
Lynx
SAO
61411
HIP
45858
Tycho2
2991-00699-1
HD
80441
HR
3701
ADS
7307
BD
BD+38 2025
Distance
42.66
Distance ly
139.16
last precise pa
311.6
last precise sep
1.163
 
 
ORBITAL ELEMENTS
 
 
Period (P)303.27y Periastron (T)2023.25y Semi-major axis (a)1.336a
Eccentricity (e)0.254 Inclination (i)29.9° Longitude of periastron (ω)191.9°
Node (Ω)137.3° Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation1999
label rho theta
2000 1.020 287.0
2001 1.019 288.7
2002 1.018 290.4
2003 1.017 292.1
2004 1.016 293.8
2005 1.015 295.5
2006 1.014 297.3
2007 1.013 299.0
2008 1.013 300.7
2009 1.012 302.5
2010 1.010 304.2
2011 1.009 305.9
2012 1.008 307.7
2013 1.007 309.4
2014 1.006 311.2
2015 1.005 312.9
2016 1.003 314.7
2017 1.002 316.5
2018 1.000 318.2
2019 0.999 320.0
2020 0.997 321.8
2021 0.995 323.6
2022 0.994 325.4
2023 0.992 327.2
2024 0.990 329.0
2025 0.988 330.8
2026 0.986 332.6
2027 0.984 334.5
2028 0.983 336.3
2029 0.981 338.2
2030 0.979 340.0

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

grafico orbita





wds09210%2B3811a.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
09210+3811 STF1338 AB 2007 409 297 1.0 6.72 7.08 F2V+F4V NOD 092059.40+381117.9
09210+3811 STF1338 AB 2010 414 302 1.1 6.72 7.08 F2V+F4V NOD 092059.40+381117.9
09210+3811 STF1338 AB 2013 432 308 1.1 6.72 7.08 F2V F4V NOD 092059.40+381117.9
09210+3811 STF1338 AB 2014 420 309 1.1 6.72 7.08 F2V F4V NOD 092059.40+381117.9
09210+3811 STF1338 AB 2015 425 308 1.1 6.72 7.08 F2V+F4V NO 092059.40+381117.9
09210+3811 STF1338 AB 2016 430 311 1.1 6.72 7.08 F2V+F4V NO 092059.40+381117.9
09210+3811 STF1338 AB 2017 434 312 1.2 6.72 7.08 F2V+F4V NO 092059.40+381117.9

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