09273+0614 STF1355

 
 
09H 27M 16.69S +06 13' 59.0" P.A. 355.1 SEP 1.78 MAG 7.71,7.76 SP F7V DIST. 54.32 PC (177.19 L.Y.)
 
 
Coord 2000
09273+0614
Discov num
STF1355
Comp
Coord arcsec 2000
09 27 16.69 +06 13 59.0
Date first
1822
Date last
2016
Obs
176
Pa first
328
Pa last
355
P.A. Now (θ)
355.1°
Sep first
2.7
Sep last
1.7
Sep. Now (ρ)
1.78"
Mag pri
7.71
Mag sec
7.76
delta mag (ΔM)
0.05
Spectral class
F7V (yellow-white)
Pri motion ra
-178
Sec motion ra
-178
Pri motion dec
-151
Sec motion dec
-151
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hydra
HIP
46367
Tycho2
0234-00650-1
HD
81670
ADS
7380
BD
BD+06 2177
Distance
54.32
Distance ly
177.19
last precise pa
354.7
last precise sep
1.728
 
 
ORBITAL ELEMENTS
 
 
Period (P)591y Periastron (T)2139.52y Semi-major axis (a)1.733a
Eccentricity (e)0.623 Inclination (i)51.1° Longitude of periastron (ω)2.8°
Node (Ω)146.4° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 1.977 350.8
2001 1.966 351.0
2002 1.955 351.2
2003 1.944 351.5
2004 1.933 351.7
2005 1.922 352.0
2006 1.911 352.2
2007 1.900 352.4
2008 1.889 352.7
2009 1.877 353.0
2010 1.866 353.2
2011 1.854 353.5
2012 1.843 353.7
2013 1.831 354.0
2014 1.819 354.3
2015 1.807 354.5
2016 1.795 354.8
2017 1.783 355.1
2018 1.771 355.4
2019 1.759 355.7
2020 1.747 356.0
2021 1.735 356.3
2022 1.722 356.6
2023 1.710 356.9
2024 1.698 357.2
2025 1.685 357.5
2026 1.672 357.8
2027 1.660 358.1
2028 1.647 358.5
2029 1.634 358.8
2030 1.621 359.1

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