11000-0328 STF 1500 (HD 95280)

 
 
11h 00m 02.02s -03° 28' 16.5" P.A. 299.00 sep 1.3 mag 7.91,8.27 Sp F8V dist. 53.59 pc (174.81 l.y.)
 
 
Coord 2000 11000-0328 Discov num STF1500 Comp Coord arcsec 2000 11 00 02.02 -03 28 16.5
Date first 1825 Date last 2021 Obs 149
Pa first 331 Pa last 298.8 P.A. Now (θ) 298.8°
Sep first 1.1 Sep last 1.292 Sep. Now (ρ) 1.292"
Mag pri 7.91 Mag sec 8.27 delta mag (ΔM) 0.36 Spectral class F8V (yellow-white)
Pri motion ra +064 Sec motion ra +064
Pri motion dec +031 Sec motion dec +031
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 95280 Constellation Leo SAO 137933 HIP 53765
Tycho2 4924-00881-1 Gaia DR2 3789596743596878976 HD 95280 GC 15111
ADS 8007 BD BD-02 3264 Distance 53.59 Distance ly 174.81
 
 
ORBITAL ELEMENTS
 
 
Period (P)680.1448y± 286.4299 Periastron (T)1774.466y± 41.0648 Semi-major axis (a)1.59598a± 0.43637
Eccentricity (e)0.30807± 0.1759 Inclination (i)101.993°± 2.511 Longitude of periastron (ω)78.776°± 47.631
Node (Ω)132.744°± 2.189 Notes ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 301.7 1.431
2001 301.6 1.426
2002 301.4 1.420
2003 301.3 1.415
2004 301.2 1.409
2005 301.0 1.404
2006 300.9 1.398
2007 300.8 1.392
2008 300.6 1.386
2009 300.5 1.380
2010 300.3 1.374
2011 300.2 1.368
2012 300.1 1.362
2013 299.9 1.356
2014 299.8 1.350
2015 299.6 1.344
2016 299.5 1.337
2017 299.3 1.331
2018 299.2 1.325
2019 299.0 1.318
2020 298.9 1.312
2021 298.7 1.305
2022 298.6 1.299
2023 298.4 1.292
2024 298.2 1.285
2025 298.1 1.279
2026 297.9 1.272
2027 297.7 1.265
2028 297.6 1.258
2029 297.4 1.251
2030 297.2 1.244


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



 
 


wds11000-0328b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic