10163+1744 STT 215

 
 
10H 16M 16.05S +17 44' 24.6" P.A. 178.1 SEP 1.57 MAG 7.25,7.46 SP A9IV DIST. 114.55 PC (373.66 L.Y.)
 
 
Coord 2000
10163+1744
Discov num
STT 215
Comp
Coord arcsec 2000
10 16 16.05 +17 44 24.6
Date first
1843
Date last
2016
Obs
432
Pa first
256
Pa last
177
P.A. Now (θ)
178.1°
Sep first
0.3
Sep last
1.7
Sep. Now (ρ)
1.57"
Mag pri
7.25
Mag sec
7.46
delta mag (ΔM)
0.21
Spectral class
A9IV (white)
Pri motion ra
-007
Sec motion ra
-007
Pri motion dec
+001
Sec motion dec
+001
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
SAO
99032
HIP
50305
Tycho2
1422-00314-1
HD
88987
HR
4028
ADS
7704
BD
BD+18 2338
Distance
114.55
Distance ly
373.66
last precise pa
176.8
last precise sep
1.74
 
 
ORBITAL ELEMENTS
 
 
Period (P)670.27y Periastron (T)1816.4y Semi-major axis (a)1.335a
Eccentricity (e)0.8 Inclination (i)130.4° Longitude of periastron (ω)131.6°
Node (Ω)126.4° Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation1981
label rho theta
2000 1.486 180.8
2001 1.491 180.6
2002 1.496 180.5
2003 1.501 180.3
2004 1.506 180.1
2005 1.511 180.0
2006 1.516 179.8
2007 1.520 179.7
2008 1.525 179.5
2009 1.530 179.3
2010 1.535 179.2
2011 1.540 179.0
2012 1.544 178.9
2013 1.549 178.7
2014 1.554 178.5
2015 1.558 178.4
2016 1.563 178.2
2017 1.567 178.1
2018 1.572 177.9
2019 1.576 177.8
2020 1.581 177.6
2021 1.585 177.5
2022 1.590 177.3
2023 1.594 177.2
2024 1.599 177.1
2025 1.603 176.9
2026 1.608 176.8
2027 1.612 176.6
2028 1.616 176.5
2029 1.621 176.3
2030 1.625 176.2

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