16425-3705 R   283

 
 
16h 42m 29.08s -37 04' 45.7" P.A. 244.7 sep 0.84 mag 6.98,7.83 Sp G3III dist. 94.79 pc (309.2 l.y.)
 
 
Coord 2000
16425-3705
Discov num
R   283
Comp
Coord arcsec 2000
16 42 29.08 -37 04 45.7
Date first
1881
Date last
2016
Obs
44
Pa first
88
Pa last
245
P.A. Now (θ)
244.7°
Sep first
0.4
Sep last
0.9
Sep. Now (ρ)
0.84"
Mag pri
6.98
Mag sec
7.83
delta mag (ΔM)
0.85
Spectral class
G3III (yellow)
Pri motion ra
-028
Sec motion ra
-028
Pri motion dec
-089
Sec motion dec
-089
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
244.7
Precise sep
0.91
Constellation
Scorpius
SAO
207943
HIP
81803
Tycho2
7358-00528-1
HD
150420
CD
CD-3610916
CP
CP-36 7024
Distance
94.79
Distance ly
309.2
last precise pa
244.7
last precise sep
0.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)691y Periastron (T)1965.72y Semi-major axis (a)1.3a
Eccentricity (e)0.656 Inclination (i)122° Longitude of periastron (ω)91.6°
Node (Ω)72.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.684 255.0
2001 0.695 254.2
2002 0.706 253.5
2003 0.717 252.8
2004 0.727 252.1
2005 0.737 251.5
2006 0.747 250.8
2007 0.757 250.2
2008 0.766 249.6
2009 0.775 249.0
2010 0.784 248.4
2011 0.793 247.9
2012 0.802 247.3
2013 0.810 246.8
2014 0.818 246.2
2015 0.826 245.7
2016 0.834 245.2
2017 0.842 244.7
2018 0.849 244.2
2019 0.857 243.7
2020 0.864 243.2
2021 0.871 242.8
2022 0.877 242.3
2023 0.884 241.9
2024 0.890 241.4
2025 0.897 241.0
2026 0.903 240.5
2027 0.909 240.1
2028 0.915 239.7
2029 0.921 239.3
2030 0.926 238.9

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





wds16425-3705b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16425-3705 R 283 1996 35 255 0.7 6.98 7.83 G3III NOD 164229.08-370445.7
16425-3705 R 283 2009 38 250 0.8 6.98 7.83 G3III NOD 164229.08-370445.7
16425-3705 R 283 2014 39 247 0.8 6.98 7.83 G3III NO 164229.08-370445.7
16425-3705 R 283 2016 44 245 0.9 6.98 7.83 G3III NO 164229.08-370445.7

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