10217-0946 BU   25

 
 
10H 21M 43.46S -09 46' 25.9" P.A. 129.5 SEP 1.56 MAG 8.41,8.96 SP G5 DIST. 59.95 PC (195.56 L.Y.)
 
 
Coord 2000
10217-0946
Discov num
BU   25
Comp
Coord arcsec 2000
10 21 43.46 -09 46 25.9
Date first
1867
Date last
2015
Obs
82
Pa first
188
Pa last
130
P.A. Now (θ)
129.5°
Sep first
0.9
Sep last
1.6
Sep. Now (ρ)
1.56"
Mag pri
8.41
Mag sec
8.96
delta mag (ΔM)
0.55
Spectral class
G5 (yellow)
Pri motion ra
+009
Sec motion ra
Pri motion dec
-040
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sextans
HIP
50747
Tycho2
5490-00124-1
HD
89795
ADS
7738
BD
BD-09 3052
Distance
59.95
Distance ly
195.56
last precise pa
130.2
last precise sep
1.556
 
 
ORBITAL ELEMENTS
 
 
Period (P)817y Periastron (T)2295y Semi-major axis (a)1.837a
Eccentricity (e)0 Inclination (i)141.2° Longitude of periastron (ω)
Node (Ω)0.2° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2005
label rho theta
2000 1.611 137.3
2001 1.608 136.9
2002 1.605 136.4
2003 1.602 136.0
2004 1.599 135.5
2005 1.596 135.0
2006 1.593 134.6
2007 1.590 134.1
2008 1.587 133.7
2009 1.584 133.2
2010 1.581 132.8
2011 1.578 132.3
2012 1.574 131.8
2013 1.571 131.4
2014 1.568 130.9
2015 1.565 130.4
2016 1.562 129.9
2017 1.560 129.5
2018 1.557 129.0
2019 1.554 128.5
2020 1.551 128.0
2021 1.548 127.5
2022 1.545 127.1
2023 1.542 126.6
2024 1.539 126.1
2025 1.536 125.6
2026 1.534 125.1
2027 1.531 124.6
2028 1.528 124.1
2029 1.525 123.6
2030 1.523 123.1

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