17506+0714 STT 337

 
 
17h 50m 34.90s +07 13' 58.0" P.A. 164.2 sep 0.59 mag 8.18,8.98 Sp F2 dist. 106.61 pc (347.76 l.y.)
 
 
Coord 2000
17506+0714
Discov num
STT 337
Comp
Coord arcsec 2000
17 50 34.90 +07 13 58.0
Date first
1843
Date last
2014
Obs
121
Pa first
308
Pa last
162
P.A. Now (θ)
164.2°
Sep first
0.5
Sep last
0.6
Sep. Now (ρ)
0.59"
Mag pri
8.18
Mag sec
8.98
delta mag (ΔM)
0.8
Spectral class
F2 (yellow-white)
Pri motion ra
+012
Sec motion ra
+012
Pri motion dec
+019
Sec motion dec
+019
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
161.8
Precise sep
0.555
Constellation
Ophiuchus
HIP
87325
Tycho2
0428-00083-1
HD
162405
ADS
10828
BD
BD+07 3481
Distance
106.61
Distance ly
347.76
last precise pa
161.8
last precise sep
0.555
 
 
ORBITAL ELEMENTS
 
 
Period (P)1000y Periastron (T)1787y Semi-major axis (a)1.389a
Eccentricity (e)0.613 Inclination (i)100.1° Longitude of periastron (ω)141.7°
Node (Ω)134.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.488 169.9
2001 0.494 169.5
2002 0.500 169.1
2003 0.505 168.7
2004 0.511 168.4
2005 0.516 168.0
2006 0.522 167.6
2007 0.528 167.3
2008 0.533 166.9
2009 0.539 166.6
2010 0.545 166.3
2011 0.550 166.0
2012 0.556 165.6
2013 0.562 165.3
2014 0.567 165.0
2015 0.573 164.7
2016 0.579 164.4
2017 0.585 164.2
2018 0.590 163.9
2019 0.596 163.6
2020 0.602 163.3
2021 0.607 163.1
2022 0.613 162.8
2023 0.619 162.6
2024 0.625 162.3
2025 0.630 162.1
2026 0.636 161.8
2027 0.642 161.6
2028 0.647 161.4
2029 0.653 161.1
2030 0.659 160.9

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

grafico orbita





wds17506%2B0714a.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
17506+0714 STT 337 2005 114 167 0.5 8.18 8.98 F2 NOD 175034.90+071358.0
17506+0714 STT 337 2009 117 164 0.5 8.18 8.98 F2 NOD 175034.90+071358.0
17506+0714 STT 337 2011 120 165 0.6 8.18 8.98 F2 NO 175034.90+071358.0
17506+0714 STT 337 2012 119 167 0.6 8.18 8.98 F2 NO 175034.90+071358.0
17506+0714 STT 337 2013 120 164 0.6 8.18 8.98 F2 NO 175034.90+071358.0
17506+0714 STT 337 2014 121 162 0.6 8.18 8.98 F2 NO 175034.90+071358.0

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