04153-0739 STF 518BC

 
 
04H 15M 21.79S -07 39' 29.1" P.A. 332.1 SEP 9.01 MAG 10.02,11.47 SP DA3.1+M5V
 
 
Coord 2000
04153-0739
Discov num
STF 518
Comp
BC
Coord arcsec 2000
04 15 21.79 -07 39 29.1
Date first
1851
Date last
2016
Obs
179
Pa first
160
Pa last
330
P.A. Now (θ)
332.1°
Sep first
3.0
Sep last
8.3
Sep. Now (ρ)
9.01"
Mag pri
10.02
Mag sec
11.47
delta mag (ΔM)
1.45
Spectral class
DA3.1+M5V
Pri motion ra
-224
Sec motion ra
-224
Pri motion dec
-342
Sec motion dec
-342
Notes
N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
04153-0739 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Omi2 Eri 131063 04153-0739 STF 518 A,BC 1783 2016 102 102 83.7 4.43 9.70 5.27
Show 131063 04153-0739 STF 518 AC 1987 2011 5 97 77.3 4.43 11.47 7.04
Show 131063 04153-0739 STF 518 AD 1850 1998 17 38 481.4 4.43 12.62 8.19
Show 131063 04153-0739 STF 518 AE 1850 1998 11 24 569.9 4.43 12.99 8.56
Show 04153-0739 STF 518 BC 1851 2016 179 332 9.0 10.02 11.47 1.45 Y <===
Show 04153-0739 STF 518 BD 1922 1999 3 28 457.0 10.02 12.62 2.60
Show 04153-0739 STF 518 BE 1922 1999 3 16 563.7 10.02 12.99 2.97
Quintuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Eridanus
HD
26976
ADS
3093
Flamsteed
40 Eridani
Flamsteed name
40 Eri
last precise pa
330.4
last precise sep
8.332
 
 
ORBITAL ELEMENTS
 
 
Period (P)224.28y Periastron (T)1847.21y Semi-major axis (a)6.977a
Eccentricity (e)0.444 Inclination (i)107° Longitude of periastron (ω)315°
Node (Ω)151.4° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2016
label rho theta
2000 8.818 335.9
2001 8.801 335.6
2002 8.781 335.3
2003 8.758 335.1
2004 8.733 334.8
2005 8.704 334.5
2006 8.672 334.3
2007 8.636 334.0
2008 8.598 333.7
2009 8.556 333.4
2010 8.511 333.2
2011 8.462 332.9
2012 8.410 332.6
2013 8.354 332.3
2014 8.295 332.0
2015 8.232 331.7
2016 8.166 331.4
2017 8.095 331.1
2018 8.021 330.8
2019 7.943 330.5
2020 7.861 330.1
2021 7.775 329.8
2022 7.685 329.5
2023 7.591 329.1
2024 7.492 328.7
2025 7.389 328.4
2026 7.282 328.0
2027 7.171 327.6
2028 7.055 327.2
2029 6.934 326.8
2030 6.809 326.3

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic