06478+0020 STT 157 (HD 49294)

 
 
06h 47m 47.56s +00° 20' 24.5" P.A. 161.00 sep 0.6 mag 7.18,9.16 Sp A2 dist. 187.27 pc (610.87 l.y.)
 
 
Coord 2000 06478+0020 Discov num STT 157 Comp Coord arcsec 2000 06 47 47.56 +00 20 24.5
Date first 1847 Date last 2018 Obs 99
Pa first 5 Pa last 161.1 P.A. Now (θ) 161.1°
Sep first 0.6 Sep last 0.59 Sep. Now (ρ) 0.59"
Mag pri 7.18 Mag sec 9.16 delta mag (ΔM) 1.98 Spectral class A2 (white)
Pri motion ra -001 Sec motion ra -001
Pri motion dec +003 Sec motion dec +003
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 49294 Constellation Monoceros SAO 114426 HIP 32572
Tycho2 0148-02059-1 HD 49294 GC 8890 ADS 5455
BD BD+00 1604 Distance 187.27 Distance ly 610.87
 
 
ORBITAL ELEMENTS
 
 
Period (P)500y± 100 Periastron (T)1958.3y± 3.5 Semi-major axis (a)0.781a± 0.1
Eccentricity (e)0.4± 0.1 Inclination (i)129.4°± 5 Longitude of periastron (ω)238.4°± 5
Node (Ω)137.8°± 5 Notesn ReferenceDoc2018l
Equinox2000 Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 179.8 0.440
2001 178.5 0.447
2002 177.2 0.455
2003 176.0 0.462
2004 174.8 0.470
2005 173.7 0.478
2006 172.6 0.485
2007 171.5 0.493
2008 170.5 0.501
2009 169.5 0.508
2010 168.5 0.516
2011 167.6 0.524
2012 166.6 0.531
2013 165.7 0.539
2014 164.9 0.546
2015 164.0 0.554
2016 163.2 0.561
2017 162.4 0.568
2018 161.6 0.576
2019 160.9 0.583
2020 160.1 0.590
2021 159.4 0.597
2022 158.7 0.604
2023 158.0 0.611
2024 157.3 0.618
2025 156.7 0.625
2026 156.0 0.632
2027 155.4 0.638
2028 154.8 0.645
2029 154.2 0.651
2030 153.6 0.658


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


 
  


wds06478%2B0020c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic