17102+5430 STF2138AB

 
 
17H 10M 10.51S +54 29' 39.8" P.A. 132.7 SEP 22.18 MAG 8.99,9.36 SP K0 DIST. 19.86 PC (64.78 L.Y.)
 
 
Coord 2000
17102+5430
Discov num
STF2138
Comp
AB
Coord arcsec 2000
17 10 10.51 +54 29 39.8
Date first
1830
Date last
2013
Obs
53
Pa first
139
Pa last
133
P.A. Now (θ)
132.7°
Sep first
22.3
Sep last
22.1
Sep. Now (ρ)
22.18"
Mag pri
8.99
Mag sec
9.36
delta mag (ΔM)
0.37
Spectral class
K0 (yellow-orange)
Pri motion ra
+083
Sec motion ra
+084
Pri motion dec
-110
Sec motion dec
-104
Notes
N O V (See Notes, Orbital solution, Proper motion indicates physical)
This double is physical.
 
 
17102+5430 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 30274 17102+5430 STF2138 AB 1830 2013 53 133 22.2 8.99 9.36 0.37 Y <===
Show 30274 17102+5430 SHY 89 AC 1991 1999 3 10 999.9 8.99 8.67 0.32
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
SAO
30274
HIP
83988
Tycho2
3891-01304-1
HD
155674
ADS
10386
GL
Gl 659A
BD
BD+54 1861
Distance
19.86
Distance ly
64.78
last precise pa
133
last precise sep
22.142
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)7485y Periastron (T)3936y Semi-major axis (a)19.63a
Eccentricity (e)0.55 Inclination (i)129° Longitude of periastron (ω)289°
Node (Ω)288° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 22.218 133.1
2001 22.217 133.1
2002 22.215 133.0
2003 22.213 133.0
2004 22.211 133.0
2005 22.209 133.0
2006 22.207 133.0
2007 22.205 132.9
2008 22.203 132.9
2009 22.201 132.9
2010 22.199 132.9
2011 22.197 132.9
2012 22.195 132.9
2013 22.193 132.8
2014 22.191 132.8
2015 22.189 132.8
2016 22.187 132.8
2017 22.185 132.8
2018 22.183 132.7
2019 22.181 132.7
2020 22.179 132.7
2021 22.177 132.7
2022 22.175 132.7
2023 22.173 132.6
2024 22.171 132.6
2025 22.169 132.6
2026 22.167 132.6
2027 22.165 132.6
2028 22.163 132.5
2029 22.161 132.5
2030 22.159 132.5

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)5610y Periastron (T)4360y Semi-major axis (a)16.2a
Eccentricity (e)0.39 Inclination (i)129° Longitude of periastron (ω)347°
Node (Ω)314° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 22.110 133.5
2001 22.108 133.5
2002 22.106 133.5
2003 22.104 133.5
2004 22.102 133.4
2005 22.100 133.4
2006 22.098 133.4
2007 22.096 133.4
2008 22.094 133.4
2009 22.092 133.3
2010 22.090 133.3
2011 22.088 133.3
2012 22.086 133.3
2013 22.084 133.3
2014 22.082 133.2
2015 22.080 133.2
2016 22.078 133.2
2017 22.076 133.2
2018 22.074 133.2
2019 22.072 133.1
2020 22.070 133.1
2021 22.068 133.1
2022 22.066 133.1
2023 22.064 133.1
2024 22.061 133.0
2025 22.059 133.0
2026 22.057 133.0
2027 22.055 133.0
2028 22.053 133.0
2029 22.051 132.9
2030 22.049 132.9

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
ORBITAL ELEMENTS SOLUTION #3
 
 
Period (P)7485y Periastron (T)-671y Semi-major axis (a)19.63a
Eccentricity (e)0.36 Inclination (i)124° Longitude of periastron (ω)62°
Node (Ω)335° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 22.132 133.7
2001 22.131 133.6
2002 22.129 133.6
2003 22.127 133.6
2004 22.125 133.6
2005 22.123 133.6
2006 22.121 133.5
2007 22.119 133.5
2008 22.117 133.5
2009 22.115 133.5
2010 22.114 133.5
2011 22.112 133.4
2012 22.110 133.4
2013 22.108 133.4
2014 22.106 133.4
2015 22.104 133.4
2016 22.102 133.3
2017 22.100 133.3
2018 22.098 133.3
2019 22.096 133.3
2020 22.094 133.3
2021 22.092 133.2
2022 22.090 133.2
2023 22.088 133.2
2024 22.086 133.2
2025 22.085 133.2
2026 22.083 133.1
2027 22.081 133.1
2028 22.079 133.1
2029 22.077 133.1
2030 22.075 133.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic