18531-5011 MUG 10 Aa,Ab (PZ Tel)

 
 
18h 53m 05.87s -50° 10' 49.8" P.A. 60.00 sep 0.4 mag 6.38,11.42 Sp K0Vp+M7 dist. 51.49 pc (167.96 l.y.)
 
 
Coord 2000 18531-5011 Discov num MUG  10 Comp Aa,Ab Coord arcsec 2000 18 53 05.87 -50 10 49.8
Date first 2007 Date last 2012 Obs 14
Pa first 62 Pa last 59.6 P.A. Now (θ) 59.6°
Sep first 0.3 Sep last 0.419 Sep. Now (ρ) 0.419"
Mag pri 6.38 Mag sec 11.42 delta mag (ΔM) 5.04 Spectral class K0Vp+M7 (yellow-orange/red)
Pri motion ra +018 Sec motion ra
Pri motion dec -084 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.
 
 
18531-5011 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show PZ Tel 18 53 06 -50 10 50 MUG 10 Aa,Ab 2012 14 60 0.4 6.38 11.42 5.04 Y <===
Show 18 53 06 -50 10 50 CVN 61 AB 2007 1 166 4.0 6.37 17.10 10.73
Show 18 53 06 -50 10 50 CVN 61 AC 2007 1 336 8.3 6.37 17.50 11.13
Show 18 53 06 -50 10 50 CVN 61 AD 2007 1 160 9.0 6.37 18.30 11.93
Show 18 53 06 -50 10 50 CVN 61 AE 2007 1 128 10.7 6.37 17.90 11.53
Sextuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name PZ Tel Constellation Telescopium HIP 92680 Tycho2 8381-02435-1
Gaia DR2 6655168686921108864 HD 174429 CD CD-5012190 CP CP-5010862
Distance 51.49 Distance ly 167.96
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)1256y Periastron (T)2001.3y Semi-major axis (a)2.4a
Eccentricity (e)0.991 Inclination (i)104° Longitude of periastron (ω)160.9°
Node (Ω)47.6° Notesn ReferenceGns2014b
Equinox Last observation2012 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 39.4 0.104
2001 8.2 0.015
2002 112.4 0.020
2003 73.8 0.071
2004 67.6 0.120
2005 64.8 0.165
2006 63.2 0.207
2007 62.1 0.245
2008 61.4 0.279
2009 60.8 0.312
2010 60.3 0.345
2011 59.6 0.398
2012 59.3 0.429
2013 59.2 0.437
2014 58.8 0.491
2015 80.2 0.049
2016 53.8 3.047
2017 103.4 0.024
2018 36.4 0.071
2019 58.0 0.605
2020 51.2 3.512
2021 55.2 1.648
2022 56.1 1.108
2023 57.2 0.774
2024 29.5 0.038
2025 67.9 0.116
2026 48.2 0.865
2027 56.8 0.885
2028 56.2 1.096
2029 55.5 1.459
2030 56.2 1.090


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



 
 


wds18531-5011a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)1766.6y Periastron (T)2001.7y Semi-major axis (a)3.02a
Eccentricity (e)0.996 Inclination (i)109.6° Longitude of periastron (ω)154.9°
Node (Ω)43.1° Notesn ReferenceGns2014b
Equinox Last observation2012 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 40.8 0.156
2001 36.1 0.077
2002 129.7 0.014
2003 73.9 0.073
2004 67.2 0.131
2005 64.4 0.184
2006 63.3 0.215
2007 58.4 0.572
2008 61.7 0.283
2009 61.3 0.300
2010 53.5 3.610
2011 48.6 1.427
2012 59.8 0.411
2013 59.1 0.476
2014 59.2 0.469
2015 54.9 1.891
2016 58.6 0.540
2017 58.5 0.551
2018 58.3 0.583
2019 58.1 0.619
2020 58.0 0.628
2021 57.9 0.650
2022 48.7 1.446
2023 51.6 5.358
2024 56.4 1.055
2025 53.6 3.473
2026 53.3 3.994
2027 57.3 0.788
2028 55.8 1.317
2029 57.1 0.831
2030 52.3 5.422


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



 
 


wds18531-5011b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #3
 
 
Period (P)386.9y Periastron (T)2000.7y Semi-major axis (a)1.1a
Eccentricity (e)0.965 Inclination (i)100.6° Longitude of periastron (ω)169.1°
Node (Ω)51.1° Notesn ReferenceGns2014b
Equinox Last observation2012 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 357.9 0.016
2001 222.1 0.036
2002 103.0 0.026
2003 73.6 0.074
2004 67.6 0.121
2005 64.9 0.164
2006 63.2 0.205
2007 62.2 0.243
2008 61.4 0.279
2009 60.7 0.314
2010 60.2 0.347
2011 59.8 0.378
2012 59.5 0.409
2013 59.2 0.439
2014 58.9 0.467
2015 58.7 0.495
2016 58.5 0.522
2017 58.3 0.548
2018 58.1 0.574
2019 57.9 0.599
2020 57.8 0.624
2021 57.7 0.648
2022 57.5 0.671
2023 57.4 0.694
2024 57.3 0.716
2025 57.2 0.738
2026 57.1 0.760
2027 57.0 0.781
2028 56.9 0.802
2029 56.8 0.822
2030 56.8 0.842


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



 
 


wds18531-5011c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic