03575-0110 BU  543

 
 
03H 57M 28.70S -01 09' 34.0" P.A. 14.4 SEP 11.1 MAG 8.21,11.45 SP K4V DIST. 15.53 PC (50.66 L.Y.)
 
 
Coord 2000
03575-0110
Discov num
BU  543
Comp
Coord arcsec 2000
03 57 28.70 -01 09 34.0
Date first
1877
Date last
2010
Obs
34
Pa first
32
Pa last
15
P.A. Now (θ)
14.4°
Sep first
11.2
Sep last
11.1
Sep. Now (ρ)
11.1"
Mag pri
8.21
Mag sec
11.45
delta mag (ΔM)
3.24
Spectral class
K4V (yellow-orange)
Pri motion ra
-182
Sec motion ra
-182
Pri motion dec
-142
Sec motion dec
-139
Notes
N O (See Notes, Orbital solution)
rPM=0.013 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
HIP
18512
Tycho2
4718-00032-1
HD
24916
ADS
2894
GL
Gl 157A
BD
BD-01 565
Distance
15.53
Distance ly
50.66
last precise pa
15.3
last precise sep
11.06
 
 
ORBITAL ELEMENTS
 
 
Period (P)3200y Periastron (T)1900y Semi-major axis (a)11.1a
Eccentricity (e)0 Inclination (i)180° Longitude of periastron (ω)
Node (Ω)27.6° Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation1972
label rho theta
2000 11.100 16.4
2001 11.100 16.2
2002 11.100 16.1
2003 11.100 16.0
2004 11.100 15.9
2005 11.100 15.8
2006 11.100 15.7
2007 11.100 15.6
2008 11.100 15.5
2009 11.100 15.3
2010 11.100 15.2
2011 11.100 15.1
2012 11.100 15.0
2013 11.100 14.9
2014 11.100 14.8
2015 11.100 14.7
2016 11.100 14.6
2017 11.100 14.4
2018 11.100 14.3
2019 11.100 14.2
2020 11.100 14.1
2021 11.100 14.0
2022 11.100 13.9
2023 11.100 13.8
2024 11.100 13.7
2025 11.100 13.5
2026 11.100 13.4
2027 11.100 13.3
2028 11.100 13.2
2029 11.100 13.1
2030 11.100 13.0

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