01456-2503 HJ 3461 AB (Eps Scl)

 
 
01h 45m 38.65s -25 03' 08.8" P.A. 18.00 sep 5.0 mag 5.38,8.50 Sp F2V dist. 28.11 pc (91.69 l.y.)
 
 
Coord 2000 01456-2503 Discov num HJ 3461 Comp AB Coord arcsec 2000 01 45 38.65 -25 03 08.8
Date first 1835 Date last 2017 Obs 68
Pa first 73 Pa last 17.9 P.A. Now (θ) 17.9°
Sep first 3.0 Sep last 4.957 Sep. Now (ρ) 4.957"
Mag pri 5.38 Mag sec 8.50 delta mag (ΔM) 3.12 Spectral class F2V (yellow-white)
Pri motion ra +162 Sec motion ra +160
Pri motion dec -057 Sec motion dec -072
Notes N O (See Notes, Orbital solution)
rPM=0.086 (< 0.3, Physical double)
This double is physical.
 
 
01456-2503 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Eps Scl 167275 01 45 39 -25 03 09 HJ 3461 AB 2017 68 18 5.0 5.38 8.50 3.12 Y <===
Show 167275 01 45 39 -25 03 09 HJ 3461 AC 2000 3 12 10.6 5.38 15.00 9.62
Show 167275 01 45 39 -25 03 09 HJ 3461 AD 1998 5 204 141.7 5.38 11.74 6.36
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Eps Scl Constellation Sculptor SAO 167275 HIP 8209
Tycho2 6429-02283-1 Gaia DR2 5037943144391354496 HD 10830 HR 514
GC 2145 ADS 1394 CD CD-25 704 CP CP-25 201
Bayer Epsilon Sculptoris Bayer name Eps Scl FK5 61 Distance 28.11
Distance ly 91.69 Bayer greek ε Scl
 
 
ORBITAL ELEMENTS
 
 
Period (P)2198.2863y± 1027.977 Periastron (T)1715.3398y± 418.8804 Semi-major axis (a)17.06118a± 10.01164
Eccentricity (e)0.85702± 0.12641 Inclination (i)105.297°± 8.361 Longitude of periastron (ω)295.982°± 39.854
Node (Ω)105.271°± 50.393 Notesn ReferenceIzm2019
Equinox Last observation2009 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 24.0 4.923
2001 23.7 4.930
2002 23.4 4.937
2003 23.2 4.945
2004 22.9 4.952
2005 22.6 4.959
2006 22.4 4.967
2007 22.1 4.974
2008 21.9 4.982
2009 21.6 4.989
2010 21.3 4.997
2011 21.1 5.005
2012 20.8 5.012
2013 20.6 5.020
2014 20.3 5.028
2015 20.1 5.036
2016 19.8 5.044
2017 19.5 5.053
2018 19.3 5.061
2019 19.0 5.069
2020 18.8 5.078
2021 18.5 5.086
2022 18.3 5.095
2023 18.0 5.103
2024 17.8 5.112
2025 17.5 5.121
2026 17.3 5.129
2027 17.0 5.138
2028 16.8 5.147
2029 16.6 5.156
2030 16.3 5.165


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



 
 


wds01456-2503c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic