15548-6554 NZO  65

 
 
15H 54M 48.49S -65 54' 04.3" P.A. 105.3 SEP 0.11 MAG 8.35,8.49 SP G0 DIST. 47.62 PC (155.34 L.Y.)
 
 
Coord 2000
15548-6554
Discov num
NZO  65
Comp
Coord arcsec 2000
15 54 48.49 -65 54 04.3
Date first
1905
Date last
2015
Obs
8
Pa first
300
Pa last
340
P.A. Now (θ)
105.3°
Sep first
0.5
Sep last
0.0
Sep. Now (ρ)
0.11"
Mag pri
8.35
Mag sec
8.49
delta mag (ΔM)
0.14
Spectral class
G0 (yellow)
Pri motion ra
+018
Sec motion ra
+014
Pri motion dec
+021
Sec motion dec
+024
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Triangulum Australe
HIP
77921
Tycho2
9035-00856-1
HD
141747
CP
CP-65 3165
Distance
47.62
Distance ly
155.34
last precise pa
339.6
last precise sep
0.047
 
 
ORBITAL ELEMENTS
 
 
Period (P)120.6y± 2.18 Periastron (T)2009.88y± 0.11 Semi-major axis (a)0.6831a± 0.0085
Eccentricity (e)0.464± 0.01 Inclination (i)85.7°± 0.2 Longitude of periastron (ω)219°
Node (Ω)122.2°± 0.4 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.388 299.1
2001 0.398 299.7
2002 0.404 300.3
2003 0.407 300.8
2004 0.405 301.4
2005 0.398 301.9
2006 0.386 302.5
2007 0.368 303.2
2008 0.345 303.9
2009 0.315 304.8
2010 0.281 305.8
2011 0.241 307.2
2012 0.197 309.1
2013 0.151 312.2
2014 0.103 318.2
2015 0.056 334.3
2016 0.031 39.7
2017 0.064 92.4
2018 0.112 105.3
2019 0.161 110.4
2020 0.209 113.2
2021 0.255 114.9
2022 0.301 116.1
2023 0.344 117.0
2024 0.385 117.7
2025 0.425 118.3
2026 0.463 118.7
2027 0.499 119.1
2028 0.533 119.5
2029 0.565 119.8
2030 0.595 120.1

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