17130+0745 STT 325

 
 
17h 12m 59.30s +07 44' 57.5" P.A. 299.3 sep 0.36 mag 7.15,8.94 Sp F0 dist. 95.6 pc (311.85 l.y.)
 
 
Coord 2000
17130+0745
Discov num
STT 325
Comp
Coord arcsec 2000
17 12 59.30 +07 44 57.5
Date first
1843
Date last
2013
Obs
65
Pa first
205
Pa last
293
P.A. Now (θ)
299.3°
Sep first
1.7
Sep last
0.4
Sep. Now (ρ)
0.36"
Mag pri
7.15
Mag sec
8.94
delta mag (ΔM)
1.79
Spectral class
F0 (yellow-white)
Pri motion ra
-018
Sec motion ra
Pri motion dec
+025
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
293.3
Precise sep
0.36
Constellation
Ophiuchus
HIP
84230
Tycho2
0977-01387-1
HD
155714
ADS
10398
BD
BD+07 3321
Distance
95.6
Distance ly
311.85
last precise pa
293.3
last precise sep
0.36
 
 
ORBITAL ELEMENTS
 
 
Period (P)2838y Periastron (T)2130y Semi-major axis (a)3.34a
Eccentricity (e)0.662 Inclination (i)77.9° Longitude of periastron (ω)348.8°
Node (Ω)6.2° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.357 268.5
2001 0.355 270.2
2002 0.353 272.0
2003 0.351 273.8
2004 0.349 275.6
2005 0.348 277.4
2006 0.347 279.3
2007 0.346 281.1
2008 0.346 283.0
2009 0.346 284.9
2010 0.346 286.7
2011 0.347 288.6
2012 0.348 290.4
2013 0.350 292.2
2014 0.352 294.0
2015 0.354 295.8
2016 0.356 297.6
2017 0.359 299.3
2018 0.362 301.0
2019 0.366 302.7
2020 0.369 304.3
2021 0.373 306.0
2022 0.378 307.5
2023 0.382 309.1
2024 0.387 310.6
2025 0.392 312.1
2026 0.397 313.5
2027 0.403 314.9
2028 0.408 316.2
2029 0.414 317.5
2030 0.420 318.8

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

grafico orbita





wds17130%2B0745a.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
17130+0745 STT 325 1991 64 254 0.4 7.15 8.94 F0 D 171259.30+074457.5
17130+0745 STT 325 2013 65 293 0.4 7.15 8.94 F0 O 171259.30+074457.5

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