11000-0328 STF1500

 
 
11H 00M 02.02S -03 28' 16.5" P.A. 299.5 SEP 1.32 MAG 7.91,8.27 SP F8V DIST. 53.59 PC (174.81 L.Y.)
 
 
Coord 2000
11000-0328
Discov num
STF1500
Comp
Coord arcsec 2000
11 00 02.02 -03 28 16.5
Date first
1825
Date last
2014
Obs
143
Pa first
331
Pa last
300
P.A. Now (θ)
299.5°
Sep first
1.1
Sep last
1.4
Sep. Now (ρ)
1.32"
Mag pri
7.91
Mag sec
8.27
delta mag (ΔM)
0.36
Spectral class
F8V (yellow-white)
Pri motion ra
+064
Sec motion ra
+064
Pri motion dec
+031
Sec motion dec
+031
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
HIP
53765
Tycho2
4924-00881-1
HD
95280
ADS
8007
BD
BD-02 3264
Distance
53.59
Distance ly
174.81
last precise pa
300
last precise sep
1.352
 
 
ORBITAL ELEMENTS
 
 
Period (P)2120.7y Periastron (T)1873.1y Semi-major axis (a)3.371a
Eccentricity (e)0.544 Inclination (i)98.9° Longitude of periastron (ω)334.7°
Node (Ω)311° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 1.420 301.9
2001 1.415 301.7
2002 1.409 301.6
2003 1.404 301.5
2004 1.398 301.4
2005 1.393 301.2
2006 1.387 301.1
2007 1.381 301.0
2008 1.376 300.8
2009 1.370 300.7
2010 1.364 300.6
2011 1.358 300.4
2012 1.352 300.3
2013 1.346 300.2
2014 1.340 300.0
2015 1.334 299.9
2016 1.328 299.7
2017 1.322 299.6
2018 1.316 299.5
2019 1.310 299.3
2020 1.303 299.2
2021 1.297 299.0
2022 1.291 298.9
2023 1.284 298.7
2024 1.278 298.6
2025 1.272 298.4
2026 1.265 298.3
2027 1.259 298.1
2028 1.252 297.9
2029 1.246 297.8
2030 1.239 297.6

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