02580-1550 HU  811AB

 
 
02h 58m 02.43s -15 50' 17.5" P.A. 235 sep 1.8 mag 8.13,10.22 Sp F5V dist. 83.4 pc (272.05 l.y.)
 
 
Coord 2000
02580-1550
Discov num
HU  811
Comp
AB
Coord arcsec 2000
02 58 02.43 -15 50 17.5
Date first
1903
Date last
2001
Obs
12
Pa first
221
Pa last
235
P.A. Now (θ)
235°
Sep first
2.1
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
8.13
Mag sec
10.22
delta mag (ΔM)
2.09
Spectral class
F5V (yellow-white)
Pri motion ra
+159
Sec motion ra
+155
Pri motion dec
+146
Sec motion dec
+137
Notes
rPM=0.046 (< 0.3, Physical double)
This double is physical.
 
 
02580-1550 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 148689 02580-1550 HU 811 AB 1903 2001 12 235 1.8 8.13 10.22 2.09 <===
Show 148689 02580-1550 WIS 78 AC 1998 2010 2 351 144.0 6.61 13.06 6.45
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
235
Precise sep
1.758
Cdsa2 id
HU 811 AB
Constellation
Eridanus
SAO
148689
HIP
13831
Tycho2
5864-00954-1
HD
18498
BD
BD-16 538
Ra deg
2.967341666666667
De deg
-15.838194444444445
Distance
83.4
Distance ly
272.05
last precise pa
235
last precise sep
1.758
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02580-1550 HU 811 AB 2001 12 235 1.8 8.13 10.22 F5V 025802.43-155017.5

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