18068+0853 TOK 696 Aa,Ab

 
 
18h 06m 50.78s +08° 52' 33.4" P.A. 207.00 sep 0.0 mag 7.60,7.90 Sp F5 dist. 40.42 pc (131.85 l.y.)
 
 
Coord 2000 18068+0853 Discov num TOK 696 Comp Aa,Ab Coord arcsec 2000 18 06 50.78 +08 52 33.4
Date first 2015 Date last 2015 Obs 1
Pa first 207 Pa last 206.9 P.A. Now (θ) 206.9°
Sep first 0.0 Sep last 0.012 Sep. Now (ρ) 0.012"
Mag pri 7.60 Mag sec 7.90 delta mag (ΔM) 0.3 Spectral class F5 (yellow-white)
Pri motion ra +039 Sec motion ra
Pri motion dec -150 Sec motion dec
Notes N X (See Notes, Dubious double)
Nature of this double is uncertain.
 
 
18068+0853 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 123133 18 06 51 +08 52 33 TOK 696 Aa,Ab 2015 1 207 0.0 7.60 7.90 0.30 <===
Show HD 165670 123133 18 06 51 +08 52 33 ENG 63 AB 2015 18 247 129.1 7.02 10.58 3.56
Show 123133 18 06 51 +08 52 33 BUP 179 AC 2015 5 316 79.9 7.02 14.49 7.47
Show 123133 18 06 51 +08 52 33 SLE 133 AD 2015 5 10 127.1 7.02 13.36 6.34
Show 123133 18 06 51 +08 52 33 SLE 133 AE 2015 8 76 148.9 7.02 11.80 4.78
Show 123133 18 06 51 +08 52 33 SLE 133 AF 2015 7 334 172.8 7.02 12.88 5.86
Show 123133 18 06 51 +08 52 33 DEA 58 AH 2015 3 169 8.0 5.74 9.88 4.14
Show 18 06 43 +08 51 40 SLE 133 BF 2015 9 12 210.5 10.58 12.88 2.30
Show 18 06 43 +08 51 40 BUP 179 BG 2015 8 37 80.0 10.58 13.13 2.55
Ninefold system
8 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ophiuchus SAO 123133 HIP 88728 Tycho2 1008-00401-1
Gaia DR2 4482248936925366400 HD 165670 BD BD+08 3581 Distance 40.42
Distance ly 131.85
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier18068+0853
coord_arcsec_2000180650.75+085234.7
Period (P)1044.2089d (2.86y)± 112.8658 Periastron (T)47504.1719d (1988.938y)± 90.7798 Semi-major axis (a)14.25m± 1.28
Eccentricity (e)0 Inclination (i)119.94°± 6.95 Longitude of periastron (ω)
Node (Ω)12.19°± 8.6 Notesn ReferenceHIP1997d
Equinox Last observation1991 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 40.4 0.011
2001-01-01 303.7 0.008
2002-01-01 179.2 0.013
2003-01-01 27.8 0.013
2004-01-01 269.1 0.007
2005-01-01 167.6 0.012
2006-01-01 18.0 0.014
2007-01-01 240.0 0.009
2008-01-01 151.0 0.009
2009-01-01 9.1 0.014
2010-01-01 221.1 0.011
2011-01-01 125.2 0.008
2012-01-01 359.7 0.013
2013-01-01 208.3 0.013
2014-01-01 90.7 0.007
2015-01-01 348.2 0.012
2016-01-01 198.4 0.014
2017-01-01 61.0 0.009
2018-01-01 331.9 0.009
2019-01-01 189.5 0.014
2020-01-01 41.8 0.011
2021-01-01 306.6 0.008
2022-01-01 180.1 0.013
2023-01-01 28.8 0.013
2024-01-01 272.2 0.007
2025-01-01 168.8 0.012
2026-01-01 18.8 0.014
2027-01-01 242.1 0.009
2028-01-01 152.8 0.010
2029-01-01 9.9 0.014
2030-01-01 222.5 0.011


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



 
 


wds18068%2B0853r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic