15390-5742 NLS 2 Aa,Ab

 
 
15h 38m 57.55s -57° 42' 27.3" P.A. 40.00 sep 0.1 mag 5.90,8.80 Sp K0V dist. 38.54 pc (125.72 l.y.)
 
 
Coord 2000 15390-5742 Discov num NLS   2 Comp Aa,Ab Coord arcsec 2000 15 38 57.55 -57 42 27.3
Date first 2003 Date last 2016 Obs 7
Pa first 55 Pa last 40.4 P.A. Now (θ) 40.4°
Sep first 0.1 Sep last 0.102 Sep. Now (ρ) 0.102"
Mag pri 5.90 Mag sec 8.80 delta mag (ΔM) 2.9 Spectral class K0V (yellow-orange)
Pri motion ra -049 Sec motion ra
Pri motion dec -097 Sec motion dec
Notes N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
15390-5742 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 15 38 58 -57 42 27 NLS 2 Aa,Ab 2016 7 40 0.1 5.90 8.80 2.90 Y <===
Show 15 38 58 -57 42 27 SKF 1501 AB 2016 6 323 10.3 8.10 14.80 6.70
Show 15 38 58 -57 42 27 VGT 4 AI 2015 3 303 7.6 5.90
Show 15 38 58 -57 42 27 VGT 4 AJ 2011 2 338 5.7 5.90
Show 15 38 58 -57 42 27 VGT 4 AT 2011 2 353 3.2 5.90
Show 15 38 58 -57 42 27 VGT 4 AU 2011 2 197 2.1 5.90
Show 15 38 58 -57 42 27 VGT 4 AV 2011 2 261 3.6 5.90
Show 15 38 58 -57 42 27 VGT 4 AW 2011 2 205 4.2 5.90
Show 242791 15 38 58 -57 42 27 VGT 4 AX 2011 2 78 4.4 5.90
Show 15 38 58 -57 42 27 VGT 4 AY 2011 2 212 4.4 5.90
Show 15 38 58 -57 42 27 VGT 4 A,Za 2011 2 63 4.8 5.90
Show 15 38 58 -57 42 27 VGT 4 A,Zb 2011 2 59 6.6 5.90
Show 15 38 58 -57 42 27 VGT 4 A,Zc 2011 2 184 6.5 5.90
Show 15 38 58 -57 42 27 VGT 4 A,Zd 2011 2 70 6.9 5.90
Show 15 38 57 -57 42 19 CVN 52 BC 2004 1 205 1.4 9.19 16.50 7.31
Show 15 38 57 -57 42 19 CVN 52 BD 2004 1 42 2.3 9.19 15.90 6.71
Show 15 38 57 -57 42 19 CVN 52 BE 2004 1 248 2.4 9.19 18.30 9.11
Show 15 38 57 -57 42 19 CVN 52 BF 2004 1 222 2.7 9.19 16.60 7.41
Show 15 38 57 -57 42 19 CVN 52 BG 2004 1 104 3.3 9.19 16.70 7.51
Show 15 38 57 -57 42 19 CVN 52 BH 2015 2 183 4.2 9.19 16.60 7.41
Show 15 38 57 -57 42 19 CVN 52 BI 2004 1 188 5.2 9.19 14.40 5.21
Show 15 38 57 -57 42 19 CVN 52 BJ 2004 1 135 5.2 9.19 13.90 4.71
Show 15 38 57 -57 42 19 CVN 52 BK 2004 1 158 5.2 9.19 17.30 8.11
Show 15 38 57 -57 42 19 CVN 52 BL 2004 1 63 5.7 9.19 17.90 8.71
Show 15 38 57 -57 42 19 CVN 52 BM 2004 2 296 5.9 9.19 14.30 5.11
Show 15 38 57 -57 42 19 CVN 52 BN 2004 1 226 6.0 9.19 15.00 5.81
Show 15 38 57 -57 42 19 CVN 52 BO 2004 1 79 6.1 9.19 16.40 7.21
Show 15 38 57 -57 42 19 CVN 52 BP 2004 1 170 6.5 9.19 16.40 7.21
Show 15 38 57 -57 42 19 CVN 52 BQ 2004 1 314 6.8 9.19 16.90 7.71
Show 15 38 57 -57 42 19 CVN 52 BR 2004 1 227 7.2 9.19 16.60 7.41
Show 15 38 57 -57 42 19 CVN 52 BS 2004 1 161 7.6 9.19 16.90 7.71
Show 15 38 57 -57 42 19 CVN 52 BT 2004 1 136 7.9 9.19 13.70 4.51
30-fold system
25 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V343 Nor Constellation Norma HIP 76629 Tycho2 8704-01271-1
Gaia DR2 5882581895219921024 HD 139084 CP CP-57 7121 Distance 38.54
Distance ly 125.72
 
 
ORBITAL ELEMENTS
 
 
Period (P)4.58y± 0.02 Periastron (T)2008.41y± 0.04 Semi-major axis (a)0.0797a± 0.0021
Eccentricity (e)0.534± 0.019 Inclination (i)55°± 4 Longitude of periastron (ω)130°± 3
Node (Ω)49.4°± 1.6 Notesn ReferenceNls2016
Equinox2000 Last observation2016 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 289.7 0.050
2001 357.6 0.078
2002 26.2 0.103
2003 51.1 0.084
2004 228.2 0.042
2005 326.1 0.058
2006 11.7 0.092
2007 35.6 0.103
2008 74.6 0.049
2009 273.8 0.049
2010 350.8 0.072
2011 22.5 0.101
2012 46.1 0.092
2013 197.9 0.030
2014 313.6 0.054
2015 6.9 0.087
2016 32.0 0.104
2017 62.5 0.065
2018 257.6 0.049
2019 342.7 0.066
2020 18.7 0.098
2021 41.8 0.098
2022 134.3 0.024
2023 299.3 0.051
2024 1.4 0.082
2025 28.5 0.104
2026 54.9 0.077
2027 240.6 0.046
2028 333.0 0.061
2029 14.5 0.095
2030 37.9 0.101


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



 
 


wds15390-5742a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic