12151-0715 STF1619AB

 
 
12h 15m 06.57s -07 15' 26.4" P.A. 265.6 sep 6.82 mag 8.06,8.30 Sp G5 dist. 35.19 pc (114.79 l.y.)
 
 
Coord 2000
12151-0715
Discov num
STF1619
Comp
AB
Coord arcsec 2000
12 15 06.57 -07 15 26.4
Date first
1795
Date last
2017
Obs
141
Pa first
295
Pa last
266
P.A. Now (θ)
265.6°
Sep first
8.0
Sep last
6.8
Sep. Now (ρ)
6.82"
Mag pri
8.06
Mag sec
8.30
delta mag (ΔM)
0.24
Spectral class
G5 (yellow)
Pri motion ra
-249
Sec motion ra
-241
Pri motion dec
-055
Sec motion dec
-070
Notes
N C (See Notes, Has orbit and linear solution)
rPM=0.067 (< 0.3, Physical double)
This double is physical.
 
 
12151-0715 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12151-0715 STF1619 AB 1795 2017 141 266 6.8 8.06 8.30 0.24 Y <===
Show 12151-0715 STF1619 AC 1893 2015 14 163 99.1 8.06 10.46 2.40
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
266.2
Precise sep
6.84
Cdsa2 id
STF 1619 AB
Constellation
Virgo
HIP
59743
Tycho2
4946-01328-1
HD
106515
ADS
8477
BD
BD-06 3532
Ra deg
12.251825
De deg
-7.257333333333333
Distance
35.19
Distance ly
114.79
last precise pa
266.2
last precise sep
6.84
 
 
ORBITAL ELEMENTS
 
 
Period (P)4802.1y± 1769 Periastron (T)2376.4y± 61.7 Semi-major axis (a)9.822a± 2.009
Eccentricity (e)0.42± 0.105 Inclination (i)164.45°± 7.4 Longitude of periastron (ω)250.5°± 26.15
Node (Ω)92.06°± 23.9 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 6.921 268.0
2001 6.915 267.9
2002 6.910 267.8
2003 6.904 267.6
2004 6.899 267.5
2005 6.893 267.4
2006 6.888 267.2
2007 6.882 267.1
2008 6.876 267.0
2009 6.871 266.8
2010 6.865 266.7
2011 6.860 266.6
2012 6.854 266.4
2013 6.849 266.3
2014 6.843 266.2
2015 6.838 266.0
2016 6.833 265.9
2017 6.827 265.8
2018 6.822 265.6
2019 6.816 265.5
2020 6.811 265.4
2021 6.805 265.2
2022 6.800 265.1
2023 6.794 264.9
2024 6.789 264.8
2025 6.783 264.7
2026 6.778 264.5
2027 6.772 264.4
2028 6.767 264.3
2029 6.762 264.1
2030 6.756 264.0

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

grafico orbita





wds12151-0715a.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
12151-0715 STF1619 AB 2007 124 267 6.9 8.06 8.30 G5 NLD 121506.57-071526.4
12151-0715 STF1619 AB 2008 125 267 6.9 8.06 8.30 G5 NLD 121506.57-071526.4
12151-0715 STF1619 AB 2010 129 267 6.8 8.06 8.30 G5 NLD 121506.57-071526.4
12151-0715 STF1619 AB 2012 131 266 6.9 8.06 8.30 G5 NLD 121506.57-071526.4
12151-0715 STF1619 AB 2014 135 266 6.9 8.06 8.30 G5 NLD 121506.57-071526.4
12151-0715 STF1619 AB 2016 139 266 7.0 8.06 8.30 G5 NC 121506.57-071526.4
12151-0715 STF1619 AB 2017 141 266 6.8 8.06 8.30 G5 NC 121506.57-071526.4

If you need more information about this double, apply for a data request form to the WDS.
 
 
WDS 12151-0715 STF1619AB : NOTES
 
 
discov_num notes refcode
STF1619 AB: NLTT 30106/30107 Chm2004
C is BD-06@3533.
A rectilinear solution to AB gives a poor fit, due to slight apparent
curvature suggesting very long-period orbital motion.
AB: The AB pair is comprised of a K0V and a K1V star, at a distance of
35.19 +/- 0.74pc. The C component is not a physical companion. Rica et
al. (2017) derive a combined spectroscopic/astrometric orbit of AB,
finding a period of 4800 years and a separation of 345au. The orbit is
perturbed by a circumprimary planet of mass 9.6 Mjup, previously
discovered through radial velocity variations (Mayor et al., 2011 A&A
submitted, arXiv:1109.2497M) FMR2017
 
 
REFERENCES
 
 
refcode metd author reference
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
FMR2017 orb j Rica, F.M., Barrena, R., Henriquez, J.A., Perez, F.M., & Vargas, P. 2017PASA...14....4R
FMR2017 +Hw Pub. Astr. Soc. Australia 14, 4, 2017
 
 
DISCOVERER
 
 
discov author
STF (F. Struve DD - Appendix list #1)
STF (F. Struve DD - Appendix list #2)
STF Struve, F.G.W.

 
 
WDS 12151-0715 STF1619AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12151-0715 STF1619AB : MEASURES
 
 
No records found.

 
 
WDS 12151-0715 STF1619AB : Virtual Eyepiece
 
 

12151-0715  STF1619 A 12151-0715  STF1619AB sep 6.82 P.A. 265.6 mag 8.06,8.30 Sp G5 12151-0715  STF1619AC sep 99.1 P.A. 163 mag 8.06,10.46 Sp G5 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Radius:
 
 
WDS 12151-0715 STF1619AB : Aladin DSS image @ 12h 15m 06.57s -07 15' 26.4"