02583-4018 PZ    2 (The1 Eri)

 
 
02h 58m 15.71s -40 18' 17.0" P.A. 91 sep 8.6 mag 3.20,4.12 Sp A4III+A1V dist. 49.43 pc (161.24 l.y.)
 
 
Coord 2000
02583-4018
Discov num
PZ    2
Comp
Coord arcsec 2000
02 58 15.71 -40 18 17.0
Date first
1835
Date last
2013
Obs
75
Pa first
82
Pa last
91
P.A. Now (θ)
91°
Sep first
8.7
Sep last
8.6
Sep. Now (ρ)
8.6"
Mag pri
3.20
Mag sec
4.12
delta mag (ΔM)
0.92
Spectral class
A4III+A1V (white/white)
Pri motion ra
-054
Sec motion ra
-003
Pri motion dec
+026
Sec motion dec
+004
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
The1 Eri
Constellation
Eridanus
SAO
216113
HIP
13847
Tycho2
7563-01016-1
HD
18622
HR
897
GC
3584
CD
CD-40 771
CP
CP-40 253
Bayer
Theta 1 Eridani
Bayer name
The1 Eri
Distance
49.43
Distance ly
161.24
last precise pa
91.1
last precise sep
8.63
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02583-4018 PZ 2 2002 70 90 8.4 3.20 4.12 A4III A1V N D 025815.71-401817.0
02583-4018 PZ 2 2009 72 91 8.4 3.20 4.12 A4III A1V N D 025815.71-401817.0
02583-4018 PZ 2 2013 74 91 8.6 3.20 4.12 A4III A1V N D 025815.71-401817.0

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