16035-5747 SEE 258 AB

 
 
16h 03m 32.22s -57° 46' 29.5" P.A. 327.00 sep 0.3 mag 5.20,5.76 Sp A7IV dist. 39.39 pc (128.49 l.y.)
 
 
Coord 2000 16035-5747 Discov num SEE 258 Comp AB Coord arcsec 2000 16 03 32.22 -57 46 29.5
Date first 1897 Date last 2021 Obs 123
Pa first 266 Pa last 326.5 P.A. Now (θ) 312.8°
Sep first 0.8 Sep last 0.291 Sep. Now (ρ) 0.35"
Mag pri 5.20 Mag sec 5.76 delta mag (ΔM) 0.56 Spectral class A7IV (white)
Pri motion ra -157 Sec motion ra -157
Pri motion dec -095 Sec motion dec -095
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
16035-5747 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 243279 16 03 32 -57 46 30 SEE 258 AB 2021 123 327 0.3 5.20 5.76 0.56 Y <===
Show Iot1 Nor 243279 16 03 32 -57 46 30 HJ 4825 AB,C 2019 43 242 11.0 4.64 8.02 3.38
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Norma SAO 243279 HIP 78662 Tycho2 8718-02860-1
HD 143474 HR 5961 GC 21535 CP CP-57 7500
Bayer Iota 1 Normae Bayer name Iot1 Nor Distance 39.39 Distance ly 128.49
Bayer greek ι1 Nor
 
 
ORBITAL ELEMENTS
 
 
Period (P)26.84y± 0.09 Periastron (T)1990.87y± 0.21 Semi-major axis (a)0.328a± 0.006
Eccentricity (e)0.515± 0.012 Inclination (i)168.7°± 9.9 Longitude of periastron (ω)320°± 44.1
Node (Ω)42°± 43.2 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 284.2 0.452
2001 278.5 0.468
2002 273.1 0.481
2003 267.9 0.489
2004 262.9 0.493
2005 257.9 0.493
2006 252.9 0.488
2007 247.7 0.480
2008 242.3 0.468
2009 236.6 0.451
2010 230.3 0.429
2011 223.3 0.403
2012 215.3 0.372
2013 205.5 0.335
2014 193.3 0.294
2015 176.6 0.248
2016 152.2 0.201
2017 115.1 0.166
2018 67.5 0.160
2019 26.0 0.187
2020 357.5 0.228
2021 338.0 0.272
2022 323.8 0.313
2023 312.8 0.350
2024 303.8 0.383
2025 296.1 0.412
2026 289.4 0.435
2027 283.2 0.455
2028 277.6 0.471
2029 272.3 0.482
2030 267.1 0.489


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



 
 


wds16035-5747a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic