09207-0742 A 1082 AB (HD 80615)

 
 
09h 20m 39.31s -07 41' 56.0" P.A. 200.00 sep 0.6 mag 9.30,10.40 Sp K0
 
 
Coord 2000 09207-0742 Discov num A  1082 Comp AB Coord arcsec 2000 09 20 39.31 -07 41 56.0
Date first 1905 Date last 2019 Obs 23
Pa first 160 Pa last 200.2 P.A. Now (θ) 200.2°
Sep first 0.8 Sep last 0.586 Sep. Now (ρ) 0.586"
Mag pri 9.30 Mag sec 10.40 delta mag (ΔM) 1.1 Spectral class K0 (yellow-orange)
Pri motion ra -135 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
09207-0742 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 80615 136771 09 20 39 -07 41 56 A 1082 AB 2019 23 200 0.6 9.30 10.40 1.10 Y <===
Show 136773 09 20 44 -07 43 48 BGH 4 CA 2015 17 326 135.0 7.46 9.30 1.84
Show 136773 09 20 44 -07 43 48 TOK 527 CD 2015 4 342 999.9 7.46 17.80 10.34
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 80615 Constellation Hydra SAO 136771 Tycho2 5459-00108-1
Gaia DR2 5744858885451276544 HD 80615 ADS 7316
 
 
ORBITAL ELEMENTS
 
 
Period (P)212.7y Periastron (T)1987.66y Semi-major axis (a)0.6a
Eccentricity (e)0.644 Inclination (i)127° Longitude of periastron (ω)24.2°
Node (Ω) Notes ReferenceDoc2011d
Equinox2000 Last observation2009 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 240.6 0.232
2001 235.8 0.250
2002 231.6 0.269
2003 228.0 0.288
2004 224.8 0.307
2005 222.0 0.326
2006 219.6 0.345
2007 217.3 0.364
2008 215.3 0.383
2009 213.5 0.401
2010 211.8 0.419
2011 210.3 0.436
2012 208.9 0.453
2013 207.5 0.470
2014 206.3 0.486
2015 205.2 0.502
2016 204.1 0.518
2017 203.1 0.533
2018 202.1 0.548
2019 201.2 0.562
2020 200.3 0.576
2021 199.5 0.590
2022 198.7 0.604
2023 198.0 0.617
2024 197.2 0.630
2025 196.5 0.642
2026 195.9 0.654
2027 195.2 0.666
2028 194.6 0.677
2029 194.0 0.689
2030 193.4 0.700


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



 
 


wds09207-0742b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic