13550-0804 STF1788AB

 
 
13h 54m 58.20s -08 03' 31.9" P.A. 100.4 sep 3.6 mag 6.68,7.26 Sp F8V+G0 dist. 33.08 pc (107.91 l.y.)
 
 
Coord 2000
13550-0804
Discov num
STF1788
Comp
AB
Coord arcsec 2000
13 54 58.20 -08 03 31.9
Date first
1825
Date last
2016
Obs
246
Pa first
52
Pa last
101
P.A. Now (θ)
100.4°
Sep first
2.8
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
6.68
Mag sec
7.26
delta mag (ΔM)
0.58
Spectral class
F8V+G0 (yellow-white/yellow)
Pri motion ra
-174
Sec motion ra
-166
Pri motion dec
-036
Sec motion dec
-050
Notes
N O (See Notes, Orbital solution)
rPM=0.091 (< 0.3, Physical double)
This double is physical.
 
 
13550-0804 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 139618 13550-0804 STF1788 AB 1825 2016 246 100 3.6 6.68 7.26 0.58 Y <===
Show 139618 13550-0804 STF1788 AC 1886 2015 16 298 112.3 6.68 10.80 4.12
Show 139618 13550-0804 STF1788 AD 1886 2015 15 211 143.5 6.68 11.69 5.01
Show 139618 13550-0804 TOK 570 AE 1980 2000 3 228 647.1 6.68 12.43 5.75
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
100.7
Precise sep
3.646
Constellation
Virgo
SAO
139618
HIP
67953
Tycho2
5553-01479-1
HD
121325
HR
5233
ADS
9053
BD
BD-07 3728
Distance
33.08
Distance ly
107.91
last precise pa
100.7
last precise sep
3.646
 
 
ORBITAL ELEMENTS
 
 
Period (P)2613y Periastron (T)1823.8y Semi-major axis (a)4.998a
Eccentricity (e)0.35 Inclination (i)50.9° Longitude of periastron (ω)293.5°
Node (Ω)108.05° Note Grade5(1=Definitive, 9=Indet.)
Equinox1900 Last observation1959
label rho theta
2000 3.499 97.7
2001 3.505 97.8
2002 3.511 98.0
2003 3.517 98.2
2004 3.523 98.3
2005 3.529 98.5
2006 3.535 98.7
2007 3.540 98.8
2008 3.546 99.0
2009 3.552 99.1
2010 3.558 99.3
2011 3.563 99.5
2012 3.569 99.6
2013 3.575 99.8
2014 3.580 99.9
2015 3.586 100.1
2016 3.591 100.3
2017 3.597 100.4
2018 3.603 100.6
2019 3.608 100.7
2020 3.613 100.9
2021 3.619 101.0
2022 3.624 101.2
2023 3.630 101.3
2024 3.635 101.5
2025 3.640 101.7
2026 3.646 101.8
2027 3.651 102.0
2028 3.656 102.1
2029 3.661 102.3
2030 3.667 102.4

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

grafico orbita





wds13550-0804a.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
13550-0804 STF1788 AB 2007 232 99 3.6 6.68 7.26 F8V+G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2009 233 100 3.5 6.68 7.26 F8V+G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2010 235 100 3.7 6.68 7.26 F8V+G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2012 238 100 3.6 6.68 7.26 F8V G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2014 240 100 3.6 6.68 7.26 F8V G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2016 246 101 3.6 6.68 7.26 F8V+G0 NO 135458.20-080331.9

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