02456-7114 HDS 357

 
 
02H 45M 36.86S -71 14' 09.4" P.A. 32.1 SEP 0.37 MAG 6.79,10.56 SP F6V DIST. 60.06 PC (195.92 L.Y.)
 
 
Coord 2000
02456-7114
Discov num
HDS 357
Comp
Coord arcsec 2000
02 45 36.86 -71 14 09.4
Date first
1991
Date last
2014
Obs
10
Pa first
132
Pa last
43
P.A. Now (θ)
32.1°
Sep first
0.5
Sep last
0.3
Sep. Now (ρ)
0.37"
Mag pri
6.79
Mag sec
10.56
delta mag (ΔM)
3.77
Spectral class
F6V (yellow-white)
Pri motion ra
+064
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hydrus
SAO
255919
HIP
12884
Tycho2
9148-01833-1
HD
17653
CP
CP-71 165
Distance
60.06
Distance ly
195.92
last precise pa
42.9
last precise sep
0.345
 
 
ORBITAL ELEMENTS
 
 
Period (P)78.7y Periastron (T)2041.99y Semi-major axis (a)0.545a
Eccentricity (e)0.401 Inclination (i)116.1° Longitude of periastron (ω)256.6°
Node (Ω)160.8° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.402 108.9
2001 0.390 105.4
2002 0.379 101.7
2003 0.368 97.8
2004 0.358 93.6
2005 0.349 89.3
2006 0.342 84.7
2007 0.336 79.9
2008 0.332 75.0
2009 0.330 70.0
2010 0.329 64.9
2011 0.330 59.9
2012 0.332 54.9
2013 0.337 50.0
2014 0.342 45.2
2015 0.349 40.7
2016 0.358 36.3
2017 0.367 32.1
2018 0.377 28.1
2019 0.387 24.4
2020 0.397 20.8
2021 0.408 17.4
2022 0.418 14.2
2023 0.428 11.2
2024 0.437 8.2
2025 0.445 5.4
2026 0.452 2.7
2027 0.457
2028 0.460 357.4
2029 0.462 354.9
2030 0.460 352.3

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