00427-3828 HDO 182 (Lam1 Scl)

 
 
00h 42m 42.89s -38 27' 48.6" P.A. 24.00 sep 0.7 mag 6.60,7.01 Sp A0V dist. 145.14 pc (473.45 l.y.)
 
 
Coord 2000 00427-3828 Discov num HDO 182 Comp Coord arcsec 2000 00 42 42.89 -38 27 48.6
Date first 1901 Date last 2017 Obs 41
Pa first 322 Pa last 23.7 P.A. Now (θ) 23.7°
Sep first 0.5 Sep last 0.665 Sep. Now (ρ) 0.665"
Mag pri 6.60 Mag sec 7.01 delta mag (ΔM) 0.41 Spectral class A0V (white)
Pri motion ra +003 Sec motion ra +003
Pri motion dec -010 Sec motion dec -010
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Lam1 Scl Constellation Sculptor SAO 192690 HIP 3356
Tycho2 7532-01096-1 Gaia DR2 5000371045362994816 HD 4065 HR 185
GC 849 CD CD-39 175 CP CP-39 46 Bayer Lambda 1 Sculptoris
Bayer name Lam1 Scl Distance 145.14 Distance ly 473.45 Bayer greek λ1 Scl
 
 
ORBITAL ELEMENTS
 
 
Period (P)840y Periastron (T)1989.9y Semi-major axis (a)1.175a
Eccentricity (e)0.88 Inclination (i)16.88° Longitude of periastron (ω)0.66°
Node (Ω)13.06° Notesn ReferenceGMc2016
Equinox2000 Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 103.0 0.251
2001 107.0 0.266
2002 110.6 0.282
2003 113.8 0.298
2004 116.6 0.313
2005 119.3 0.329
2006 121.6 0.344
2007 123.8 0.359
2008 125.8 0.374
2009 127.7 0.389
2010 129.4 0.404
2011 131.0 0.419
2012 132.4 0.433
2013 133.8 0.447
2014 135.1 0.462
2015 136.3 0.475
2016 137.5 0.489
2017 138.6 0.503
2018 139.6 0.516
2019 140.6 0.530
2020 141.6 0.543
2021 142.4 0.556
2022 143.3 0.569
2023 144.1 0.581
2024 144.9 0.594
2025 145.6 0.606
2026 146.4 0.619
2027 147.0 0.631
2028 147.7 0.643
2029 148.3 0.655
2030 149.0 0.667


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



 
 


wds00427-3828a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic