02572-2458 BEU   4Ca,Cb

 
 
02h 57m 13.19s -24 58' 30.4" P.A. 100 mag 8.24,9.30 Sp K2 dist. 149.93 pc (489.07 l.y.)
 
 
Coord 2000
02572-2458
Discov num
BEU   4
Comp
Ca,Cb
Coord arcsec 2000
02 57 13.19 -24 58 30.4
Date first
2000
Date last
2017
Obs
13
Pa first
170
Pa last
100
P.A. Now (θ)
100°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
8.24
Mag sec
9.30
delta mag (ΔM)
1.06
Spectral class
K2 (yellow-orange)
Pri motion ra
+015
Sec motion ra
Pri motion dec
-033
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
02572-2458 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 168181 02572-2458 BU 741 AB 1879 2017 76 352 0.4 8.06 8.20 0.14 Y
Show 168181 02572-2458 S 423 AB,C 1824 2009 34 226 29.3 8.06 7.86 0.20
Show 194002 02572-2458 BEU 4 Ca,Cb 2000 2017 13 100 0.0 8.24 9.30 1.06 Y <===
Show 168180 02572-2458 HDS 379 CD 1991 1991 2 173 5.1 7.86 11.88 4.02
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
100.3
Precise sep
0.049
Constellation
Fornax
SAO
194002
HIP
13768
Tycho2
6437-00959-1
HD
18466
HR
884
ADS
2242
DM
CD-30 1122
CD
CD-25 1168
CP
CP-25 348
Distance
149.93
Distance ly
489.07
last precise pa
100.3
last precise sep
0.049
 
 
ORBITAL ELEMENTS
 
 
Period (P)1.518y± 0.001 Periastron (T)2007.088y± 0.021 Semi-major axis (a)0.062a± 0.002
Eccentricity (e)0.54± 0.024 Inclination (i)160.4°± 12 Longitude of periastron (ω)341.8°± 11
Node (Ω)± 9.1 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.085 221.5
2001 0.028 33.6
2002 0.089 180.5
2003 0.082 225.2
2004 0.030 64.3
2005 0.091 183.7
2006 0.079 229.1
2007 0.035 89.2
2008 0.093 186.8
2009 0.076 233.4
2010 0.040 107.8
2011 0.094 189.8
2012 0.072 238.2
2013 0.046 121.8
2014 0.094 192.7
2015 0.068 243.5
2016 0.052 132.5
2017 0.095 195.6
2018 0.064 249.5
2019 0.058 141.0
2020 0.095 198.5
2021 0.059 256.5
2022 0.063 148.1
2023 0.095 201.4
2024 0.054 264.7
2025 0.068 154.1
2026 0.094 204.3
2027 0.048 274.7
2028 0.073 159.4
2029 0.093 207.3
2030 0.043 287.2

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

grafico orbita





wds02572-2458a.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
02572-2458 BEU 4 Ca,Cb 2000 1 170 0.1 7.84   K2 D 025713.19-245830.4
02572-2458 BEU 4 Ca,Cb 2008 3 279 0.0 7.84   K2 D 025713.19-245830.4
02572-2458 BEU 4 Ca,Cb 2010 4 13 0.1 7.84   K2 N D 025713.19-245830.4
02572-2458 BEU 4 Ca,Cb 2013 6 34 0.1 7.84   K2 NO 025713.19-245830.4
02572-2458 BEU 4 Ca,Cb 2015 10 239 0.1 8.24 9.30 K2 NO 025713.19-245830.4
02572-2458 BEU 4 Ca,Cb 2017 13 100 0.0 8.24 9.30 K2 NO 025713.19-245830.4

If you need more information about this double, apply for a data request form to the WDS.