03310+2937 A 983 (HD 21674)

 
 
03h 30m 59.31s +29° 36' 49.3" P.A. 145.00 sep 0.5 mag 9.64,10.24 Sp G0 dist. 172.71 pc (563.38 l.y.)
 
 
Coord 2000 03310+2937 Discov num A   983 Comp Coord arcsec 2000 03 30 59.31 +29 36 49.3
Date first 1905 Date last 2016 Obs 47
Pa first 308 Pa last 144.5 P.A. Now (θ) 144.5°
Sep first 0.5 Sep last 0.548 Sep. Now (ρ) 0.548"
Mag pri 9.64 Mag sec 10.24 delta mag (ΔM) 0.6 Spectral class G0 (yellow)
Pri motion ra -014 Sec motion ra
Pri motion dec +009 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 21674 Constellation Taurus SAO 75961 HIP 16376
Tycho2 1810-00747-1 Gaia DR2 120620480016164480 HD 21674 ADS 2578
BD BD+29 570 Distance 172.71 Distance ly 563.38
 
 
ORBITAL ELEMENTS
 
 
Period (P)587y Periastron (T)1964.83y Semi-major axis (a)0.748a
Eccentricity (e)0.591 Inclination (i)63.2° Longitude of periastron (ω)245.3°
Node (Ω)150.8° Notes ReferenceDoc2010d
Equinox2000 Last observation2007 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 133.3 0.378
2001 134.1 0.388
2002 134.9 0.397
2003 135.7 0.407
2004 136.5 0.416
2005 137.2 0.425
2006 137.8 0.434
2007 138.5 0.443
2008 139.1 0.452
2009 139.7 0.460
2010 140.3 0.469
2011 140.8 0.477
2012 141.4 0.485
2013 141.9 0.494
2014 142.4 0.501
2015 142.9 0.509
2016 143.4 0.517
2017 143.8 0.525
2018 144.3 0.532
2019 144.7 0.539
2020 145.1 0.546
2021 145.5 0.553
2022 145.9 0.560
2023 146.3 0.567
2024 146.7 0.574
2025 147.1 0.580
2026 147.5 0.587
2027 147.8 0.593
2028 148.2 0.599
2029 148.5 0.606
2030 148.9 0.612


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



 
 


wds03310%2B2937c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic