16115+1507 A  1799

 
 
16H 11M 28.81S +15 07' 25.3" P.A. 114.9 SEP 0.8 MAG 9.53,9.75 SP G5 DIST. 185.53 PC (605.2 L.Y.)
 
 
Coord 2000
16115+1507
Discov num
A  1799
Comp
Coord arcsec 2000
16 11 28.81 +15 07 25.3
Date first
1908
Date last
2014
Obs
70
Pa first
171
Pa last
116
P.A. Now (θ)
114.9°
Sep first
0.3
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
9.53
Mag sec
9.75
delta mag (ΔM)
0.22
Spectral class
G5 (yellow)
Pri motion ra
+002
Sec motion ra
+002
Pri motion dec
+000
Sec motion dec
+000
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
101993
HIP
79333
Tycho2
1504-00937-1
HD
145648
ADS
9952
BD
BD+15 2964
Distance
185.53
Distance ly
605.2
last precise pa
116.4
last precise sep
0.783
 
 
ORBITAL ELEMENTS
 
 
Period (P)540y Periastron (T)1833y Semi-major axis (a)0.693a
Eccentricity (e)0.48 Inclination (i)123.1° Longitude of periastron (ω)163.6°
Node (Ω)90.1° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.729 119.7
2001 0.734 119.4
2002 0.738 119.1
2003 0.742 118.8
2004 0.746 118.5
2005 0.750 118.3
2006 0.754 118.0
2007 0.758 117.7
2008 0.761 117.5
2009 0.765 117.2
2010 0.769 116.9
2011 0.773 116.7
2012 0.777 116.4
2013 0.781 116.2
2014 0.784 115.9
2015 0.788 115.7
2016 0.792 115.4
2017 0.795 115.2
2018 0.799 114.9
2019 0.803 114.7
2020 0.806 114.5
2021 0.810 114.2
2022 0.813 114.0
2023 0.817 113.8
2024 0.820 113.5
2025 0.824 113.3
2026 0.827 113.1
2027 0.831 112.9
2028 0.834 112.6
2029 0.837 112.4
2030 0.841 112.2

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