16057-0617 BU  948AB

 
 
16h 05m 44.53s -06 17' 28.1" P.A. 79 sep 0.71 mag 6.46,9.01 Sp F3V dist. 87.34 pc (284.9 l.y.)
 
 
Coord 2000
16057-0617
Discov num
BU  948
Comp
AB
Coord arcsec 2000
16 05 44.53 -06 17 28.1
Date first
1879
Date last
2015
Obs
62
Pa first
151
Pa last
80
P.A. Now (θ)
79°
Sep first
1.5
Sep last
0.7
Sep. Now (ρ)
0.71"
Mag pri
6.46
Mag sec
9.01
delta mag (ΔM)
2.55
Spectral class
F3V (yellow-white)
Pri motion ra
+050
Sec motion ra
+050
Pri motion dec
+007
Sec motion dec
+007
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
16057-0617 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 140945 16057-0617 FIN 384 Aa,Ab 1964 2015 24 251 0.1 7.10 7.10 0.00 Y
Show 140945 16057-0617 BU 948 AB 1879 2015 62 79 0.7 6.46 9.01 2.55 Y <===
Show 140945 16057-0617 STF2005 AC 1835 2014 16 232 30.1 6.46 11.31 4.85
Show 140945 16057-0617 STF2005 AD 1835 2014 11 202 55.3 6.46 11.87 5.41
Show 140945 16057-0617 SHY 696 AE 1991 2014 5 271 260.0 6.46 7.90 1.44
Show 140945 16057-0617 STF2005 CD 1835 2014 13 176 34.1 11.31 11.87 0.56
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
80
Precise sep
0.683
Constellation
Ophiuchus
SAO
140945
HIP
78849
Tycho2
5044-00998-1
HD
144362
HR
5989
ADS
9918
BD
BD-05 4234
Distance
87.34
Distance ly
284.9
last precise pa
80
last precise sep
0.683
 
 
ORBITAL ELEMENTS
 
 
Period (P)459y Periastron (T)2050y Semi-major axis (a)1.123a
Eccentricity (e)0.65 Inclination (i)152.5° Longitude of periastron (ω)70.4°
Node (Ω)52.6° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.880 97.0
2001 0.871 96.2
2002 0.861 95.3
2003 0.852 94.4
2004 0.842 93.4
2005 0.833 92.5
2006 0.823 91.5
2007 0.813 90.5
2008 0.803 89.5
2009 0.793 88.4
2010 0.783 87.4
2011 0.772 86.3
2012 0.762 85.1
2013 0.752 84.0
2014 0.741 82.8
2015 0.730 81.5
2016 0.720 80.3
2017 0.709 79.0
2018 0.698 77.6
2019 0.687 76.2
2020 0.675 74.8
2021 0.664 73.3
2022 0.653 71.8
2023 0.641 70.2
2024 0.629 68.5
2025 0.618 66.8
2026 0.606 65.0
2027 0.594 63.2
2028 0.582 61.2
2029 0.569 59.2
2030 0.557 57.1

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

grafico orbita





wds16057-0617a.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
16057-0617 BU 948 AB 1994 53 99 0.9 6.46 9.01 F3V D 160544.53-061728.1
16057-0617 BU 948 AB 2009 59 87 0.8 6.46 9.01 F3V D 160544.53-061728.1
16057-0617 BU 948 AB 2010 60 86 0.7 6.46 9.01 F3V N D 160544.53-061728.1
16057-0617 BU 948 AB 2014 61 81 0.7 6.46 9.01 F3V NO 160544.53-061728.1
16057-0617 BU 948 AB 2015 62 80 0.7 6.46 9.01 F3V NO 160544.53-061728.1

If you need more information about this double, apply for a data request form to the WDS.