10474+0236 HDS1542AB

 
 
10h 47m 24.29s +02 35' 32.0" P.A. 260.30 sep 0.5 mag 12.91,13.20 Sp M1 dist. 41.96 pc (136.87 l.y.)
 
 
Coord 2000
10474+0236
Discov num
HDS1542
Comp
AB
Coord arcsec 2000
10 47 24.29 +02 35 32.0
Date first
1991
Date last
2018
Obs
9
Pa first
219
Pa last
258
P.A. Now (θ)
260.3°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.54"
Mag pri
12.91
Mag sec
13.20
delta mag (ΔM)
0.29
Spectral class
M1 (red)
Pri motion ra
+180
Sec motion ra
Pri motion dec
+030
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
10474+0236 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 10 47 24 +02 35 32 HDS 1542 AB 2018 9 260 0.5 12.91 13.20 0.29 Y <===
Show 10 47 24 +02 35 32 TOK 542 AC 2015 7 226 756.0 12.28 14.84 2.56
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
258.3
Precise sep
0.528
Constellation
Sextans
HIP
52774
Gaia DR2
3809351492919091968
Distance
41.96
Distance ly
136.87
last precise pa
258.3
last precise sep
0.528
 
 
ORBITAL ELEMENTS
 
 
Period (P)121.7y± 8.2 Periastron (T)2100.6y± 8.2 Semi-major axis (a)0.518a± 0.031
Eccentricity (e)0.412± 0.069 Inclination (i)60.5°± 2.7 Longitude of periastron (ω)250.4°± 6.8
Node (Ω)235°± 3.4 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.503 235.5
2001 0.513 236.9
2002 0.523 238.2
2003 0.531 239.5
2004 0.538 240.7
2005 0.544 241.9
2006 0.550 243.1
2007 0.554 244.3
2008 0.558 245.5
2009 0.560 246.6
2010 0.562 247.7
2011 0.564 248.8
2012 0.564 250.0
2013 0.564 251.1
2014 0.563 252.2
2015 0.562 253.3
2016 0.560 254.5
2017 0.558 255.6
2018 0.555 256.7
2019 0.552 257.9
2020 0.548 259.1
2021 0.543 260.3
2022 0.539 261.5
2023 0.534 262.7
2024 0.528 264.0
2025 0.523 265.3
2026 0.517 266.6
2027 0.510 268.0
2028 0.504 269.3
2029 0.497 270.8
2030 0.490 272.2


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



 
 


wds10474%2B0236a.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
10474+0236 HDS1542 AB 2014 3 252 0.6 12.91 13.20 M1 104724.20+023531.8
10474+0236 HDS1542 AB 2018 7 258 0.5 12.91 13.20 M1 104724.29+023532.0

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