10067+1754 HDS 1457 AB (HD 87646)

 
 
10h 06m 40.82s +17 53' 42.6" P.A. 45.00 sep 0.4 mag 8.29,10.95 Sp G1IV dist. 98.81 pc (322.32 l.y.)
 
 
Coord 2000 10067+1754 Discov num HDS1457 Comp AB Coord arcsec 2000 10 06 40.82 +17 53 42.6
Date first 1991 Date last 2021 Obs 27
Pa first 136 Pa last 45.2 P.A. Now (θ) 45.2°
Sep first 0.2 Sep last 0.435 Sep. Now (ρ) 0.435"
Mag pri 8.29 Mag sec 10.95 delta mag (ΔM) 2.66 Spectral class G1IV (yellow)
Pri motion ra -083 Sec motion ra
Pri motion dec -031 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
10067+1754 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 98950 10 06 41 +17 53 43 BAG 23 Aa,Ac 2012 3 113 0.0 8.07 Y
Show HD 87646 98950 10 06 41 +17 53 43 HDS 1457 AB 2021 27 45 0.4 8.29 10.95 2.66 Y <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 87646 Constellation Leo SAO 98950 HIP 49522
Tycho2 1415-00386-1 Gaia DR2 623313901995781632 HD 87646 BD BD+18 2317
Distance 98.81 Distance ly 322.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)203y Periastron (T)1989.2y Semi-major axis (a)0.684a
Eccentricity (e)0.649 Inclination (i)126.2° Longitude of periastron (ω)298.9°
Node (Ω)109.1° Notesn ReferenceTok2019c
Equinox Last observation2018 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 94.4 0.354
2001 91.5 0.363
2002 88.8 0.371
2003 86.1 0.378
2004 83.6 0.385
2005 81.1 0.391
2006 78.7 0.396
2007 76.3 0.401
2008 74.0 0.406
2009 71.8 0.410
2010 69.6 0.415
2011 67.5 0.419
2012 65.4 0.422
2013 63.3 0.426
2014 61.3 0.430
2015 59.3 0.434
2016 57.3 0.437
2017 55.4 0.441
2018 53.5 0.445
2019 51.6 0.448
2020 49.7 0.452
2021 47.9 0.456
2022 46.2 0.460
2023 44.4 0.464
2024 42.7 0.468
2025 41.0 0.472
2026 39.3 0.476
2027 37.7 0.480
2028 36.1 0.484
2029 34.5 0.489
2030 33.0 0.493


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



 
 


wds10067%2B1754a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic