16453+5647 MCA  44

 
 
16H 45M 17.79S +56 46' 54.1" P.A. 144 MAG 4.85, SP F2V DIST. 26.11 PC (85.17 L.Y.)
 
 
Coord 2000
16453+5647
Discov num
MCA  44
Comp
Coord arcsec 2000
16 45 17.79 +56 46 54.1
Date first
1977
Date last
1981
Obs
2
Pa first
52
Pa last
144
P.A. Now (θ)
144°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
4.85
Mag sec
delta mag (ΔM)
Spectral class
F2V (yellow-white)
Pri motion ra
+018
Sec motion ra
Pri motion dec
+066
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Draco
SAO
30076
HIP
82020
Tycho2
3882-02597-1
HD
151613
HR
6237
GL
Wo 9578
BD
BD+57 1702
Distance
26.11
Distance ly
85.17
last precise pa
143.5
last precise sep
0.047
 
 
ORBITAL ELEMENTS
 
 
Period (P)1385.7281d (3.79y) Periastron (T)48616.7148d (1991.984y)± 5.3981 Semi-major axis (a)39.26m± 1.14
Eccentricity (e)0.72 Inclination (i)112.44°± 1.54 Longitude of periastron (ω)99°
Node (Ω)249.02°± 2.11 Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1991
label rho theta
2000-01-01 0.025 45.5
2001-01-01 0.025 343.6
2002-01-01 0.032 293.4
2003-01-01 0.029 259.1
2004-01-01 0.026 33.3
2005-01-01 0.026 331.0
2006-01-01 0.034 286.2
2007-01-01 0.019 245.4
2008-01-01 0.025 21.1
2009-01-01 0.027 319.4
2010-01-01 0.035 279.5
2011-01-01 0.009 89.6
2012-01-01 0.025 8.2
2013-01-01 0.029 309.2
2014-01-01 0.035 273.0
2015-01-01 0.022 57.3
2016-01-01 0.024 354.9
2017-01-01 0.031 300.3
2018-01-01 0.033 266.1
2019-01-01 0.025 43.7
2020-01-01 0.025 341.7
2021-01-01 0.033 292.3
2022-01-01 0.028 257.7
2023-01-01 0.026 31.6
2024-01-01 0.026 329.2
2025-01-01 0.034 285.2
2026-01-01 0.016 241.5
2027-01-01 0.025 19.2
2028-01-01 0.027 317.9
2029-01-01 0.035 278.5
2030-01-01 0.012 79.3

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