09137+6959 STF1313

 
 
09h 13m 45.13s +69 58' 47.4" P.A. 284.30 sep 1.1 mag 9.39,9.55 Sp G5 dist. 364.96 pc (1190.5 l.y.)
 
 
Coord 2000
09137+6959
Discov num
STF1313
Comp
Coord arcsec 2000
09 13 45.13 +69 58 47.4
Date first
1832
Date last
2017
Obs
51
Pa first
241
Pa last
283
P.A. Now (θ)
284.3°
Sep first
0.8
Sep last
1.1
Sep. Now (ρ)
1.1"
Mag pri
9.39
Mag sec
9.55
delta mag (ΔM)
0.16
Spectral class
G5 (yellow)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
-017
Sec motion dec
-017
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
283.4
Precise sep
1.05
Constellation
Hydra
SAO
6783
HIP
45284
Tycho2
4376-01157-1
Gaia DR2
1117907767275273856
HD
78696
ADS
7229
BD
BD+70 555
Distance
364.96
Distance ly
1190.5
last precise pa
283.4
last precise sep
1.05
 
 
ORBITAL ELEMENTS
 
 
Period (P)1469.0807y± 750.9704 Periastron (T)1787.4337y± 210.3034 Semi-major axis (a)2.26673a± 1.5446
Eccentricity (e)0.83071± 0.14956 Inclination (i)69.023°± 13.069 Longitude of periastron (ω)105.193°± 20.101
Node (Ω)44.469°± 64.453 Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 1.083 279.8
2001 1.084 280.1
2002 1.084 280.3
2003 1.085 280.5
2004 1.086 280.7
2005 1.086 280.9
2006 1.087 281.1
2007 1.088 281.3
2008 1.088 281.6
2009 1.089 281.8
2010 1.090 282.0
2011 1.090 282.2
2012 1.091 282.4
2013 1.092 282.6
2014 1.092 282.8
2015 1.093 283.0
2016 1.094 283.2
2017 1.095 283.4
2018 1.095 283.7
2019 1.096 283.9
2020 1.097 284.1
2021 1.097 284.3
2022 1.098 284.5
2023 1.099 284.7
2024 1.100 284.9
2025 1.100 285.1
2026 1.101 285.3
2027 1.102 285.5
2028 1.103 285.7
2029 1.103 285.9
2030 1.104 286.1


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



 
 


wds09137%2B6959a.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
09137+6959 STF1313 1996 49 281 1.1 9.39 9.55 G5 D 091345.13+695847.4
09137+6959 STF1313 2014 49 282 1.1 9.39 9.55 G5 091345.13+695847.4
09137+6959 STF1313 2017 50 283 1.1 9.39 9.55 G5 091345.13+695847.4

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