16301+3353 HU 1173

 
 
16H 30M 03.67S +33 53' 11.1" P.A. 67.5 SEP 0.26 MAG 8.91,9.45 SP G5 DIST. 210.08 PC (685.28 L.Y.)
 
 
Coord 2000
16301+3353
Discov num
HU 1173
Comp
Coord arcsec 2000
16 30 03.67 +33 53 11.1
Date first
1905
Date last
2008
Obs
40
Pa first
69
Pa last
58
P.A. Now (θ)
67.5°
Sep first
0.2
Sep last
0.3
Sep. Now (ρ)
0.26"
Mag pri
8.91
Mag sec
9.45
delta mag (ΔM)
0.54
Spectral class
G5 (yellow)
Pri motion ra
-001
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
65340
HIP
80806
Tycho2
2584-01149-1
HD
148909
ADS
10085
BD
BD+34 2799
Distance
210.08
Distance ly
685.28
last precise pa
57.6
last precise sep
0.296
 
 
ORBITAL ELEMENTS
 
 
Period (P)110.5y Periastron (T)1966.5y Semi-major axis (a)0.154a
Eccentricity (e)0.75 Inclination (i)38° Longitude of periastron (ω)208°
Node (Ω)47° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.238 56.1
2001 0.240 56.8
2002 0.243 57.5
2003 0.245 58.1
2004 0.247 58.8
2005 0.249 59.5
2006 0.250 60.1
2007 0.252 60.8
2008 0.253 61.4
2009 0.254 62.0
2010 0.255 62.6
2011 0.256 63.3
2012 0.257 63.9
2013 0.258 64.5
2014 0.258 65.1
2015 0.259 65.7
2016 0.259 66.3
2017 0.259 66.9
2018 0.259 67.5
2019 0.259 68.1
2020 0.259 68.7
2021 0.258 69.3
2022 0.258 69.9
2023 0.257 70.5
2024 0.256 71.1
2025 0.256 71.7
2026 0.255 72.3
2027 0.253 73.0
2028 0.252 73.6
2029 0.251 74.2
2030 0.249 74.9

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