09174+2339 STF1332

 
 
09h 17m 19.21s +23 39' 09.8" P.A. 29.30 sep 5.9 mag 7.87,8.12 Sp F6V+F7V dist. 71.28 pc (232.52 l.y.)
 
 
Coord 2000
09174+2339
Discov num
STF1332
Comp
Coord arcsec 2000
09 17 19.21 +23 39 09.8
Date first
1822
Date last
2019
Obs
143
Pa first
14
Pa last
29
P.A. Now (θ)
29.3°
Sep first
5.5
Sep last
5.9
Sep. Now (ρ)
5.9"
Mag pri
7.87
Mag sec
8.12
delta mag (ΔM)
0.25
Spectral class
F6V+F7V (yellow-white/yellow-white)
Pri motion ra
-046
Sec motion ra
-046
Pri motion dec
-067
Sec motion dec
-067
Notes
O (Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
29.4
Precise sep
5.933
Constellation
Cancer
SAO
80738
HIP
45574
Tycho2
1951-01947-1
Gaia DR2
9276147968
HD
79872
ADS
7281
BD
BD+24 2068
Distance
71.28
Distance ly
232.52
last precise pa
29.4
last precise sep
5.933
 
 
ORBITAL ELEMENTS
 
 
Period (P)3395.218y± 1537.5039 Periastron (T)1500.7561y± 757.5483 Semi-major axis (a)9.86671a± 4.37108
Eccentricity (e)0.78632± 0.15608 Inclination (i)69.468°± 9.975 Longitude of periastron (ω)97.588°± 15.114
Node (Ω)172.468°± 107.435 Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 5.894 28.1
2001 5.894 28.1
2002 5.895 28.2
2003 5.895 28.3
2004 5.896 28.3
2005 5.896 28.4
2006 5.896 28.4
2007 5.897 28.5
2008 5.897 28.6
2009 5.898 28.6
2010 5.898 28.7
2011 5.898 28.8
2012 5.899 28.8
2013 5.899 28.9
2014 5.899 29.0
2015 5.900 29.0
2016 5.900 29.1
2017 5.900 29.2
2018 5.901 29.2
2019 5.901 29.3
2020 5.901 29.3
2021 5.901 29.4
2022 5.902 29.5
2023 5.902 29.5
2024 5.902 29.6
2025 5.903 29.7
2026 5.903 29.7
2027 5.903 29.8
2028 5.903 29.9
2029 5.904 29.9
2030 5.904 30.0

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






wds09174%2B2339a.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
09174+2339 STF1332 2007 117 29 5.9 7.87 8.12 F6V F7V D 091719.21+233909.8
09174+2339 STF1332 2011 123 29 6.1 7.87 8.12 F6V F7V D 091719.21+233909.8
09174+2339 STF1332 2013 126 29 5.8 7.87 8.12 F6V F7V D 091719.21+233909.8
09174+2339 STF1332 2015 135 29 5.9 7.87 8.12 F6V+F7V 091719.21+233909.8
09174+2339 STF1332 2019 143 29 5.9 7.87 8.12 F6V+F7V O 091719.21+233909.8

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