20216-5449 COO 239

 
 
20h 21m 38.36s -54 48' 45.2" P.A. 346.00 sep 4.6 mag 8.72,10.21 Sp G5V dist. 45.56 pc (148.62 l.y.)
 
 
Coord 2000
20216-5449
Discov num
COO 239
Comp
Coord arcsec 2000
20 21 38.36 -54 48 45.2
Date first
1890
Date last
2015
Obs
17
Pa first
3
Pa last
346
P.A. Now (θ)
346°
Sep first
4.3
Sep last
4.6
Sep. Now (ρ)
4.6"
Mag pri
8.72
Mag sec
10.21
delta mag (ΔM)
1.49
Spectral class
G5V (yellow)
Pri motion ra
-219
Sec motion ra
-231
Pri motion dec
-167
Sec motion dec
-150
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=0.076 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
346.4
Precise sep
4.558
Constellation
Telescopium
SAO
246544
HIP
100405
Tycho2
8781-00245-1
Gaia DR2
46436307456
HD
193231
CD
CD-55 8462
CP
CP-55 9370
Distance
45.56
Distance ly
148.62
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20216-5449 COO 239 1999 13 348 4.6 8.72 10.21 G5V D 202138.36-544845.2
20216-5449 COO 239 2010 15 348 4.3 8.72 10.21 G5V N 202138.36-544845.2
20216-5449 COO 239 2015 16 346 4.6 8.72 10.21 G5V N 202138.36-544845.2

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