12429+0516 A 1602 (HD 110555)

12h 42m 55.41s +05° 15' 59.9" P.A. 28.00 sep 0.7 mag 8.77,10.12 Sp G5 dist. 92.51 pc (301.77 l.y.)

Coord 2000 12429+0516 Discov num A  1602 Comp Coord arcsec 2000 12 42 55.41 +05 15 59.9
Date first 1907 Date last 2018 Obs 19
Pa first 178 Pa last 27.9 P.A. Now (θ) 27.9°
Sep first 0.3 Sep last 0.68 Sep. Now (ρ) 0.68"
Mag pri 8.77 Mag sec 10.12 delta mag (ΔM) 1.35 Spectral class G5 (yellow)
Pri motion ra -082 Sec motion ra
Pri motion dec -105 Sec motion dec
Notes N O (See Notes, Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 110555 Constellation Virgo SAO 119550 HIP 62034
Tycho2 0296-00228-1 Gaia DR2 3708802460231857664 HD 110555 ADS 8639
BD BD+06 2647 Distance 92.51 Distance ly 301.77




ORBITAL ELEMENTS

Period (P)699.4y Periastron (T)1913.05y Semi-major axis (a)1.567a
Eccentricity (e)0.914 Inclination (i)96.9° Longitude of periastron (ω)125.8°
Node (Ω)5.3° Notesn ReferenceDoc2015d
Equinox2000 Last observation2014 Grade5(1=Definitive, 9=Indet.)

label theta rho
2000 30.3 0.478
2001 30.0 0.486
2002 29.7 0.494
2003 29.5 0.501
2004 29.3 0.509
2005 29.0 0.516
2006 28.8 0.524
2007 28.6 0.531
2008 28.4 0.539
2009 28.1 0.546
2010 27.9 0.554
2011 27.7 0.561
2012 27.6 0.569
2013 27.4 0.576
2014 27.2 0.583
2015 27.0 0.591
2016 26.8 0.598
2017 26.7 0.605
2018 26.5 0.613
2019 26.3 0.620
2020 26.2 0.627
2021 26.0 0.634
2022 25.9 0.642
2023 25.7 0.649
2024 25.6 0.656
2025 25.4 0.663
2026 25.3 0.670
2027 25.2 0.677
2028 25.0 0.684
2029 24.9 0.691
2030 24.8 0.698


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



 
 


wds12429%2B0516c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic