21027-5030 B  2489

 
 
21h 02m 39.58s -50 29' 36.0" P.A. 7.00 sep 5.4 mag 9.23,12.06 Sp K3V dist. 44.54 pc (145.29 l.y.)
 
 
Coord 2000
21027-5030
Discov num
B  2489
Comp
Coord arcsec 2000
21 02 39.58 -50 29 36.0
Date first
1930
Date last
2015
Obs
7
Pa first
0
Pa last
7
P.A. Now (θ)
Sep first
6.0
Sep last
5.4
Sep. Now (ρ)
5.4"
Mag pri
9.23
Mag sec
12.06
delta mag (ΔM)
2.83
Spectral class
K3V (yellow-orange)
Pri motion ra
+235
Sec motion ra
+237
Pri motion dec
-107
Sec motion dec
-102
Notes
rPM=0.021 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
6.7
Precise sep
5.392
Constellation
Indus
SAO
246832
HIP
103855
Tycho2
8429-01229-1
Gaia DR2
6477912672193822592
HD
200014
CD
CD-5013215
CP
CP-5011482
Distance
44.54
Distance ly
145.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21027-5030 B 2489 1999 4 8 5.3 9.23 12.06 K3V D 210239.58-502936.0
21027-5030 B 2489 2015 6 7 5.4 9.23 12.06 K3V 210239.58-502936.0

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