10292+1009 STT 220 (HD 90791)

10h 29m 11.36s +10° 09' 20.0" P.A. 101.00 sep 0.6 mag 7.51,8.59 Sp F8

Coord 2000 10292+1009 Discov num STT 220 Comp Coord arcsec 2000 10 29 11.36 +10 09 20.0
Date first 1843 Date last 2012 Obs 58
Pa first 57 Pa last 101.2 P.A. Now (θ) 101.2°
Sep first 1.2 Sep last 0.556 Sep. Now (ρ) 0.556"
Mag pri 7.51 Mag sec 8.59 delta mag (ΔM) 1.08 Spectral class F8 (yellow-white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec -030 Sec motion dec -030
Notes O (Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 90791 Constellation Leo SAO 99153 Tycho2 0841-01181-1
Gaia DR2 3882183972071569792 HD 90791 GC 14396 ADS 7792




ORBITAL ELEMENTS

Period (P)750y Periastron (T)2530y Semi-major axis (a)1.7a
Eccentricity (e)0.363 Inclination (i)79.2° Longitude of periastron (ω)300.6°
Node (Ω)58.2° Notes ReferenceUSN2002
Equinox2000 Last observation1997 Grade5(1=Definitive, 9=Indet.)

label theta rho
2000 104.7 0.518
2001 105.6 0.512
2002 106.5 0.506
2003 107.5 0.500
2004 108.4 0.494
2005 109.4 0.488
2006 110.5 0.482
2007 111.5 0.477
2008 112.6 0.472
2009 113.7 0.466
2010 114.8 0.461
2011 116.0 0.456
2012 117.2 0.452
2013 118.4 0.447
2014 119.6 0.443
2015 120.8 0.439
2016 122.1 0.435
2017 123.4 0.431
2018 124.7 0.427
2019 126.0 0.424
2020 127.4 0.421
2021 128.8 0.418
2022 130.2 0.415
2023 131.6 0.413
2024 133.0 0.410
2025 134.5 0.408
2026 135.9 0.407
2027 137.4 0.405
2028 138.9 0.404
2029 140.4 0.403
2030 141.9 0.402


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



 
 


wds10292%2B1009a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic