03006+4753 A 1529 (HD 18549)

 
 
03h 00m 37.99s +47° 53' 06.4" P.A. 167.00 sep 0.3 mag 8.10,9.68 Sp A2 dist. 336.7 pc (1098.32 l.y.)
 
 
Coord 2000 03006+4753 Discov num A  1529 Comp Coord arcsec 2000 03 00 37.99 +47 53 06.4
Date first 1907 Date last 2008 Obs 21
Pa first 166 Pa last 167.3 P.A. Now (θ) 167.3°
Sep first 0.3 Sep last 0.311 Sep. Now (ρ) 0.311"
Mag pri 8.10 Mag sec 9.68 delta mag (ΔM) 1.58 Spectral class A2 (white)
Pri motion ra -008 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 18549 Constellation Perseus SAO 38504 HIP 14029
Tycho2 3314-01458-1 Gaia DR2 434579192038469248 HD 18549 ADS 2271
BD BD+47 752 Distance 336.7 Distance ly 1098.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)105.48y± 2 Periastron (T)1966y± 5 Semi-major axis (a)0.159a± 0.005
Eccentricity (e)0.731± 0.1 Inclination (i)98°± 0.5 Longitude of periastron (ω)208.1°± 1.5
Node (Ω)165.4°± 3 Notesn ReferenceTam2006
Equinox2000 Last observation2004 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 163.6 0.245
2001 163.5 0.246
2002 163.3 0.248
2003 163.2 0.249
2004 163.1 0.250
2005 163.0 0.251
2006 162.8 0.251
2007 162.7 0.252
2008 162.6 0.252
2009 162.4 0.252
2010 162.3 0.252
2011 162.2 0.252
2012 162.0 0.251
2013 161.9 0.251
2014 161.8 0.250
2015 161.7 0.249
2016 161.5 0.248
2017 161.4 0.246
2018 161.3 0.245
2019 161.1 0.243
2020 161.0 0.241
2021 160.8 0.239
2022 160.7 0.237
2023 160.5 0.235
2024 160.4 0.232
2025 160.2 0.229
2026 160.1 0.227
2027 159.9 0.224
2028 159.8 0.221
2029 159.6 0.217
2030 159.4 0.214


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



 
 


wds03006%2B4753b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic