17251+5312 MLR 604

 
 
17h 25m 04.81s +53° 11' 15.4" P.A. 96.00 sep 0.8 mag 10.99,11.18
 
 
Coord 2000 17251+5312 Discov num MLR 604 Comp Coord arcsec 2000 17 25 04.81 +53 11 15.4
Date first 1981 Date last 2015 Obs 8
Pa first 86 Pa last 95.9 P.A. Now (θ) 95.9°
Sep first 0.7 Sep last 0.827 Sep. Now (ρ) 0.827"
Mag pri 10.99 Mag sec 11.18 delta mag (ΔM) 0.19 Spectral class
Pri motion ra +007 Sec motion ra +007
Pri motion dec -041 Sec motion dec -041
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 3888-00728-1 Gaia DR2 1416262029882893568
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier17251+5308
coord_arcsec_2000172508.32+530757.9
Period (P)206.088d± 0.018 Periastron (T)54309.15d (2007.569y)± 0.16 Semi-major axis (a)5.3m± 0.02
Eccentricity (e)0.4126± 0.0017 Inclination (i)62.4°± 5.4 Longitude of periastron (ω)78.94°± 0.3
Node (Ω)221.1°± 6.8 Notes ReferenceSaJ2013b
Equinox Last observation2012 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 138.1 0.003
2001-01-01 74.2 0.005
2002-01-01 37.6 0.004
2003-01-01 222.0 0.004
2004-01-01 168.5 0.004
2005-01-01 93.2 0.004
2006-01-01 52.7 0.005
2007-01-01 274.4 0.002
2008-01-01 191.8 0.004
2009-01-01 120.2 0.004
2010-01-01 65.9 0.005
2011-01-01 23.6 0.003
2012-01-01 210.6 0.004
2013-01-01 152.2 0.003
2014-01-01 81.8 0.005
2015-01-01 45.0 0.005
2016-01-01 234.9 0.003
2017-01-01 179.7 0.004
2018-01-01 104.1 0.004
2019-01-01 58.4 0.005
2020-01-01 345.6 0.002
2021-01-01 200.3 0.005
2022-01-01 134.3 0.003
2023-01-01 72.4 0.005
2024-01-01 35.4 0.004
2025-01-01 219.4 0.004
2026-01-01 165.4 0.004
2027-01-01 90.7 0.004
2028-01-01 51.2 0.005
2029-01-01 261.5 0.002
2030-01-01 189.4 0.004


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



 
 


wds17251%2B5308a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic