03101+2145 BU 1030 AB (HD 19616)

 
 
03h 10m 06.57s +21° 44' 49.5" P.A. 102.00 sep 0.8 mag 7.81,9.67 Sp F0 dist. 118.06 pc (385.11 l.y.)
 
 
Coord 2000 03101+2145 Discov num BU 1030 Comp AB Coord arcsec 2000 03 10 06.57 +21 44 49.5
Date first 1888 Date last 2016 Obs 88
Pa first 165 Pa last 102 P.A. Now (θ) 102°
Sep first 0.6 Sep last 0.828 Sep. Now (ρ) 0.828"
Mag pri 7.81 Mag sec 9.67 delta mag (ΔM) 1.86 Spectral class F0 (yellow-white)
Pri motion ra +023 Sec motion ra +023
Pri motion dec -011 Sec motion dec -011
Notes O (Orbital solution)
This double is physical.
 
 
03101+2145 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 19616 75764 03 10 07 +21 44 50 BU 1030 AB 2016 88 102 0.8 7.81 9.67 1.86 Y <===
Show 75764 03 10 07 +21 44 50 POP 225 AB,C 2004 3 44 48.2 7.63 13.54 5.91
Show 75764 03 10 07 +21 44 50 POP 225 AB,D 2004 3 159 54.1 7.63 15.80 8.17
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 19616 Constellation Aries SAO 75764 HIP 14715
Tycho2 1231-00913-1 Gaia DR2 60787432349571456 HD 19616 ADS 2375
BD BD+21 413 Distance 118.06 Distance ly 385.11
 
 
ORBITAL ELEMENTS
 
 
Period (P)571y Periastron (T)2156y Semi-major axis (a)0.802a
Eccentricity (e)0.084 Inclination (i)123.7° Longitude of periastron (ω)90.3°
Node (Ω)97.4° Notes ReferenceZir2012b
Equinox2000 Last observation2007 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 107.3 0.792
2001 106.9 0.793
2002 106.5 0.794
2003 106.2 0.794
2004 105.8 0.795
2005 105.5 0.796
2006 105.1 0.797
2007 104.8 0.798
2008 104.4 0.798
2009 104.1 0.799
2010 103.7 0.799
2011 103.4 0.800
2012 103.0 0.800
2013 102.7 0.800
2014 102.3 0.800
2015 102.0 0.801
2016 101.6 0.801
2017 101.3 0.801
2018 100.9 0.801
2019 100.6 0.801
2020 100.2 0.800
2021 99.9 0.800
2022 99.5 0.800
2023 99.2 0.800
2024 98.8 0.799
2025 98.5 0.799
2026 98.1 0.798
2027 97.8 0.797
2028 97.4 0.797
2029 97.1 0.796
2030 96.7 0.795


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



 
 


wds03101%2B2145a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic