20231-3315 B  2484

 
 
20h 23m 04.89s -33 15' 19.9" P.A. 239 sep 11.2 mag 8.65,13.80 Sp A9V
 
 
Coord 2000
20231-3315
Discov num
B  2484
Comp
Coord arcsec 2000
20 23 04.89 -33 15 19.9
Date first
1930
Date last
2015
Obs
3
Pa first
135
Pa last
239
P.A. Now (θ)
239°
Sep first
8.0
Sep last
11.2
Sep. Now (ρ)
11.2"
Mag pri
8.65
Mag sec
13.80
delta mag (ΔM)
5.15
Spectral class
A9V (white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
+020
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
239.2
Precise sep
11.164
Constellation
Sagittarius
SAO
212063
Tycho2
7446-00335-1
Gaia DR2
00162531200
HD
193750
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20231-3315 B 2484 1930 1 135 8.0 8.65 13.80 A9V 202304.89-331519.9
20231-3315 B 2484 1999 2 241 10.7 8.65 13.80 A9V 202304.89-331519.9
20231-3315 B 2484 2015 3 239 11.2 8.65 13.80 A9V 202304.89-331519.9

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