21419-3710 BVD 154

 
 
21h 41m 54.30s -37 09' 46.6" P.A. 100.00 sep 31.9 mag 10.25,11.20 Sp G0V+G9V
 
 
Coord 2000
21419-3710
Discov num
BVD 154
Comp
Coord arcsec 2000
21 41 54.30 -37 09 46.6
Date first
1911
Date last
2015
Obs
8
Pa first
100
Pa last
100
P.A. Now (θ)
100°
Sep first
31.6
Sep last
31.9
Sep. Now (ρ)
31.9"
Mag pri
10.25
Mag sec
11.20
delta mag (ΔM)
0.95
Spectral class
G0V+G9V (yellow/yellow)
Pri motion ra
+057
Sec motion ra
+060
Pri motion dec
-022
Sec motion dec
-022
Notes
rPM=0.047 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
99.5
Precise sep
31.868
Constellation
Grus
SAO
213209
Tycho2
7493-00121-1
Gaia DR2
6586315275923449856
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21419-3710 BVD 154 1991 2 100 31.9 10.25 11.20 G0V G9V 214154.30-370946.6
21419-3710 BVD 154 2000 5 100 31.9 10.25 11.20 G0V G9V D 214154.30-370946.6
21419-3710 BVD 154 2010 6 100 31.9 10.25 11.20 G0V+G9V 214154.30-370946.6
21419-3710 BVD 154 2015 7 100 31.9 10.25 11.20 G0V+G9V 214154.30-370946.6

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