02371-1112 HU 1216 AB (HD 16355)

 
 
02h 37m 08.62s -11° 11' 51.1" P.A. 41.00 sep 0.7 mag 8.53,9.18 Sp G0 dist. 66.14 pc (215.75 l.y.)
 
 
Coord 2000 02371-1112 Discov num HU 1216 Comp AB Coord arcsec 2000 02 37 08.62 -11 11 51.1
Date first 1900 Date last 2018 Obs 35
Pa first 249 Pa last 40.8 P.A. Now (θ) 40.8°
Sep first 0.3 Sep last 0.679 Sep. Now (ρ) 0.679"
Mag pri 8.53 Mag sec 9.18 delta mag (ΔM) 0.65 Spectral class G0 (yellow)
Pri motion ra +048 Sec motion ra +048
Pri motion dec +026 Sec motion dec +026
Notes O (Orbital solution)
This double is physical.
 
 
02371-1112 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 16355 148505 02 37 09 -11 11 51 HU 1216 AB 2018 35 41 0.7 8.53 9.18 0.65 Y <===
Show 148505 02 37 09 -11 11 51 TOK 232 AC 2015 9 234 187.6 8.11 11.84 3.73
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 16355 Constellation Cetus SAO 148505 HIP 12204
Tycho2 5288-00842-1 Gaia DR2 5171933342203644160 HD 16355 ADS 1990
BD BD-11 493 Distance 66.14 Distance ly 215.75
 
 
ORBITAL ELEMENTS
 
 
Period (P)351y± 271 Periastron (T)1902y± 15 Semi-major axis (a)1.01a± 0.34
Eccentricity (e)0.508± 0.044 Inclination (i)64.4°± 3.4 Longitude of periastron (ω)309°± 43
Node (Ω)277°± 12 Notes ReferenceRAO2015
Equinox2000 Last observation2013 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 19.7 0.573
2001 20.8 0.578
2002 22.0 0.583
2003 23.1 0.588
2004 24.2 0.593
2005 25.3 0.599
2006 26.4 0.604
2007 27.5 0.610
2008 28.5 0.616
2009 29.5 0.622
2010 30.5 0.628
2011 31.5 0.634
2012 32.5 0.640
2013 33.4 0.646
2014 34.3 0.653
2015 35.2 0.659
2016 36.1 0.666
2017 37.0 0.672
2018 37.8 0.679
2019 38.7 0.686
2020 39.5 0.693
2021 40.3 0.699
2022 41.1 0.706
2023 41.9 0.713
2024 42.6 0.720
2025 43.4 0.727
2026 44.1 0.734
2027 44.8 0.742
2028 45.5 0.749
2029 46.2 0.756
2030 46.9 0.763


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



 
 


wds02371-1112b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic