01361-2954 HJ 3447 (Tau Scl)

 
 
01H 36M 08.50S -29 54' 26.5" P.A. 196.8 SEP 0.85 MAG 5.97,7.35 SP F2V DIST. 69.35 PC (226.22 L.Y.)
 
 
Coord 2000
01361-2954
Discov num
HJ 3447
Comp
Coord arcsec 2000
01 36 08.50 -29 54 26.5
Date first
1835
Date last
2015
Obs
115
Pa first
254
Pa last
194
P.A. Now (θ)
196.8°
Sep first
3.0
Sep last
0.8
Sep. Now (ρ)
0.85"
Mag pri
5.97
Mag sec
7.35
delta mag (ΔM)
1.38
Spectral class
F2V (yellow-white)
Pri motion ra
+105
Sec motion ra
+105
Pri motion dec
+038
Sec motion dec
+038
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
Tau Scl
Constellation
Sculptor
SAO
193201
HIP
7463
Tycho2
6428-02436-1
HD
9906
HR
462
GC
1947
CD
CD-30 540
CP
CP-30 186
Bayer
Tau Sculptoris
Bayer name
Tau Scl
Distance
69.35
Distance ly
226.22
last precise pa
193.6
last precise sep
0.817
 
 
ORBITAL ELEMENTS
 
 
Period (P)1503.58y± 35.32 Periastron (T)2039.79y± 33.8 Semi-major axis (a)3.155a± 0.132
Eccentricity (e)0.604± 0.019 Inclination (i)55.6°± 0.8 Longitude of periastron (ω)140.2°± 2.8
Node (Ω)69.6°± 0.8 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2001
label rho theta
2000 0.800 169.2
2001 0.799 170.9
2002 0.798 172.6
2003 0.798 174.3
2004 0.799 175.9
2005 0.800 177.6
2006 0.801 179.3
2007 0.803 181.0
2008 0.806 182.6
2009 0.809 184.3
2010 0.812 185.9
2011 0.816 187.5
2012 0.821 189.1
2013 0.826 190.7
2014 0.831 192.3
2015 0.837 193.8
2016 0.843 195.3
2017 0.849 196.8
2018 0.856 198.3
2019 0.863 199.8
2020 0.871 201.2
2021 0.879 202.6
2022 0.887 204.0
2023 0.895 205.3
2024 0.904 206.6
2025 0.913 207.9
2026 0.922 209.2
2027 0.931 210.5
2028 0.941 211.7
2029 0.950 212.9
2030 0.960 214.1

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic