03446+2754 BU 1041 BC

 
 
03h 44m 45.00s +27° 55' 15.8" P.A. 321.00 sep 35.1 mag 6.91,12.42 Sp G2IV dist. 64.72 pc (211.12 l.y.)
 
 
Coord 2000 03446+2754 Discov num BU 1041 Comp BC Coord arcsec 2000 03 44 45.00 +27 55 15.8
Date first 1888 Date last 2017 Obs 18
Pa first 348 Pa last 320.8 P.A. Now (θ) 320.8°
Sep first 7.9 Sep last 35.09 Sep. Now (ρ) 35.09"
Mag pri 6.91 Mag sec 12.42 delta mag (ΔM) 5.51 Spectral class G2IV (yellow)
Pri motion ra +157 Sec motion ra -002
Pri motion dec -165 Sec motion dec -004
Notes N L (See Notes, Linear solution)
rPM=0.994
This double is not physical.
 
 
03446+2754 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 23245 76122 03 44 37 +27 53 52 STTA 38 AB 2017 43 53 135.4 6.78 6.91 0.13
Show 76124 03 44 45 +27 55 16 BU 1041 BC 2017 18 321 35.1 6.91 12.42 5.51 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus SAO 76124 HIP 17482 Tycho2 1807-00067-1
Gaia DR2 71576252759892480 HD 23257 GC 4472 BD BD+27 558
Distance 64.72 Distance ly 211.12
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier03447+2755 STT4038 B
coord_arcsec_2000034444.90+275517.3
Period (P)699d± 28 Periastron (T)48535d (1991.76y)± 228 Semi-major axis (a)13.2m± 2.5
Eccentricity (e)0.27± 0.22 Inclination (i)132°± 10 Longitude of periastron (ω)100°± 96
Node (Ω)205°± 94 Notes ReferenceGln2007
Equinox Last observation1991 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 341.0 0.012
2001-01-01 200.1 0.012
2002-01-01 327.9 0.012
2003-01-01 186.5 0.011
2004-01-01 313.8 0.011
2005-01-01 166.8 0.009
2006-01-01 299.2 0.011
2007-01-01 134.9 0.007
2008-01-01 284.7 0.011
2009-01-01 92.7 0.007
2010-01-01 270.9 0.012
2011-01-01 59.9 0.008
2012-01-01 258.4 0.012
2013-01-01 39.2 0.010
2014-01-01 247.0 0.013
2015-01-01 24.4 0.012
2016-01-01 236.5 0.013
2017-01-01 12.0 0.012
2018-01-01 226.7 0.014
2019-01-01 0.3 0.013
2020-01-01 217.1 0.014
2021-01-01 348.5 0.012
2022-01-01 206.9 0.013
2023-01-01 335.9 0.012
2024-01-01 195.1 0.012
2025-01-01 322.4 0.011
2026-01-01 179.6 0.010
2027-01-01 308.0 0.011
2028-01-01 155.9 0.008
2029-01-01 293.4 0.011
2030-01-01 118.3 0.006


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



 
 


wds03447%2B2755r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic