09551+6854 STF1386AB

 
 
09h 55m 04.02s +68 54' 06.1" P.A. 111.10 sep 2.1 mag 9.30,9.34 Sp F5 dist. 168.92 pc (551.02 l.y.)
 
 
Coord 2000
09551+6854
Discov num
STF1386
Comp
AB
Coord arcsec 2000
09 55 04.02 +68 54 06.1
Date first
1831
Date last
2017
Obs
57
Pa first
122
Pa last
111
P.A. Now (θ)
111.1°
Sep first
1.5
Sep last
2.2
Sep. Now (ρ)
2.11"
Mag pri
9.30
Mag sec
9.34
delta mag (ΔM)
0.04
Spectral class
F5 (yellow-white)
Pri motion ra
-006
Sec motion ra
-006
Pri motion dec
-001
Sec motion dec
-001
Notes
O W (Orbital solution, )
This double is physical.
 
 
09551+6854 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 15020 09 55 04 +68 54 06 STF 1386 AB 2017 57 111 2.1 9.30 9.34 0.04 Y <===
Show 15020 09 55 04 +68 54 06 STF 1386 AB,CD 2003 10 353 137.7 9.30 10.67 1.37
Show 15018 09 55 03 +68 56 22 STF 1387 CD 2018 41 274 9.0 10.73 10.67 0.06
Quadruple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
110.7
Precise sep
2.183
Constellation
Ursa Major
SAO
15020
HIP
48639
Tycho2
4383-00848-2
Gaia DR2
1070467070352960640
HD
85458
BD
BD+69 542
Distance
168.92
Distance ly
551.02
last precise pa
110.7
last precise sep
2.183
 
 
ORBITAL ELEMENTS
 
 
Period (P)2301.5886y± 1050.8306 Periastron (T)2178.5269y± 435.2889 Semi-major axis (a)4.61934a± 2.5666
Eccentricity (e)0.79276± 0.1685 Inclination (i)92.517°± 2.781 Longitude of periastron (ω)76.941°± 17.376
Node (Ω)108.314°± 4.927 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 2.109 111.5
2001 2.110 111.5
2002 2.110 111.5
2003 2.110 111.5
2004 2.110 111.4
2005 2.110 111.4
2006 2.110 111.4
2007 2.110 111.4
2008 2.110 111.4
2009 2.110 111.3
2010 2.110 111.3
2011 2.110 111.3
2012 2.110 111.3
2013 2.109 111.3
2014 2.109 111.2
2015 2.109 111.2
2016 2.108 111.2
2017 2.108 111.2
2018 2.108 111.2
2019 2.107 111.1
2020 2.106 111.1
2021 2.106 111.1
2022 2.105 111.1
2023 2.104 111.1
2024 2.104 111.0
2025 2.103 111.0
2026 2.102 111.0
2027 2.101 111.0
2028 2.100 111.0
2029 2.099 110.9
2030 2.098 110.9


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



 
 


wds09551%2B6854a.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
09551+6854 STF1386 AB 2002 51 111 2.1 9.30 9.34 F5 D 095504.02+685406.1
09551+6854 STF1386 AB 2003 52 112 2.1 9.30 9.34 F5 D 095504.02+685406.1
09551+6854 STF1386 AB 2012 53 111 2.0 9.30 9.34 F5 D 095504.02+685406.1
09551+6854 STF1386 AB 2017 55 111 2.2 9.30 9.34 F5 W 095504.02+685406.1

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