00524-6930 DUN   2 (Lam1 Tuc)

 
 
00h 52m 24.52s -69 30' 13.6" P.A. 15 sep 91.77 mag 6.70,7.35 Sp F7IV-V dist. 63.29 pc (206.45 l.y.)
 
 
Coord 2000
00524-6930
Discov num
DUN   2
Comp
Coord arcsec 2000
00 52 24.52 -69 30 13.6
Date first
1834
Date last
2015
Obs
38
Pa first
77
Pa last
81
P.A. Now (θ)
15°
Sep first
22.5
Sep last
20.3
Sep. Now (ρ)
91.77"
Mag pri
6.70
Mag sec
7.35
delta mag (ΔM)
0.65
Spectral class
F7IV-V (yellow-white)
Pri motion ra
+004
Sec motion ra
-003
Pri motion dec
-069
Sec motion dec
-060
Notes
N L V (See Notes, Linear solution, Proper motion indicates physical)
rPM=0.165 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
80.8
Precise sep
20.303
Name
Lam1 Tuc
Constellation
Tucana
SAO
248269
HIP
4084
Tycho2
9135-01891-1
Gaia DR2
92046507520
HD
5190
HR
252
GC
1056
CD
CD-70 38
CP
CP-70 37
Bayer
Lambda 1 Tucanae
Bayer name
Lam1 Tuc
Distance
63.29
Distance ly
206.45
last precise pa
80.8
last precise sep
20.303
 
 
ORBITAL ELEMENTS
 
 
Period (P)80000y Periastron (T)6100y± 800 Semi-major axis (a)170a± 11
Eccentricity (e)0.74± 0.02 Inclination (i)66.4°± 0.5 Longitude of periastron (ω)105°± 4
Node (Ω)14.1°± 0.9 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 92.054 14.9
2001 92.040 15.0
2002 92.025 15.0
2003 92.010 15.0
2004 91.995 15.0
2005 91.980 15.0
2006 91.965 15.0
2007 91.950 15.0
2008 91.936 15.0
2009 91.921 15.0
2010 91.906 15.0
2011 91.891 15.0
2012 91.876 15.0
2013 91.861 15.0
2014 91.846 15.0
2015 91.832 15.0
2016 91.817 15.0
2017 91.802 15.0
2018 91.787 15.0
2019 91.772 15.0
2020 91.757 15.0
2021 91.742 15.0
2022 91.727 15.0
2023 91.713 15.0
2024 91.698 15.0
2025 91.683 15.1
2026 91.668 15.1
2027 91.653 15.1
2028 91.638 15.1
2029 91.623 15.1
2030 91.608 15.1

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






wds00524-6930a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00524-6930 DUN 2 1998 29 81 20.4 6.70 7.35 F7IV-V N D 005224.52-693013.6
00524-6930 DUN 2 2008 31 82 20.6 6.70 7.35 F7IV-V NVD 005224.52-693013.6
00524-6930 DUN 2 2009 33 82 20.4 6.70 7.35 F7IV-V NVD 005224.52-693013.6
00524-6930 DUN 2 2013 35 82 20.0 6.70 7.35 F7IV-V NVD 005224.52-693013.6
00524-6930 DUN 2 2015 37 82 20.4 6.70 7.35 F7IV-V NV 005224.52-693013.6

If you need more information about this double, apply for a data request form to the WDS.