16169+0113 A  2181

 
 
16H 16M 52.42S +01 13' 17.3" P.A. 107.3 SEP 0.42 MAG 10.12,10.20 SP G0 DIST. 162.34 PC (529.55 L.Y.)
 
 
Coord 2000
16169+0113
Discov num
A  2181
Comp
Coord arcsec 2000
16 16 52.42 +01 13 17.3
Date first
1910
Date last
2007
Obs
43
Pa first
300
Pa last
77
P.A. Now (θ)
107.3°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.42"
Mag pri
10.12
Mag sec
10.20
delta mag (ΔM)
0.08
Spectral class
G0 (yellow)
Pri motion ra
-045
Sec motion ra
-045
Pri motion dec
+018
Sec motion dec
+018
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Serpens
HIP
79774
Tycho2
0368-01562-1
HD
146564
ADS
9989
BD
BD+01 3191
Distance
162.34
Distance ly
529.55
last precise pa
77.1
last precise sep
0.485
 
 
ORBITAL ELEMENTS
 
 
Period (P)285.69y Periastron (T)1962.37y Semi-major axis (a)0.4331a
Eccentricity (e)0.1259 Inclination (i)11.94° Longitude of periastron (ω)245.12°
Node (Ω)137.33° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation1981
label rho theta
2000 0.395 82.3
2001 0.396 83.7
2002 0.397 85.2
2003 0.398 86.6
2004 0.400 88.1
2005 0.401 89.5
2006 0.402 90.9
2007 0.404 92.3
2008 0.405 93.7
2009 0.406 95.1
2010 0.408 96.5
2011 0.409 97.9
2012 0.410 99.3
2013 0.412 100.6
2014 0.413 102.0
2015 0.414 103.3
2016 0.416 104.6
2017 0.417 106.0
2018 0.419 107.3
2019 0.420 108.6
2020 0.421 109.9
2021 0.423 111.2
2022 0.424 112.4
2023 0.425 113.7
2024 0.427 115.0
2025 0.428 116.2
2026 0.430 117.5
2027 0.431 118.7
2028 0.432 120.0
2029 0.433 121.2
2030 0.435 122.4

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