18477-1633 RST4020

 
 
18h 47m 41.01s -16 32' 43.1" P.A. 28 sep 3.2 mag 10.28,13.60 Sp A0
 
 
Coord 2000
18477-1633
Discov num
RST4020
Comp
Coord arcsec 2000
18 47 41.01 -16 32 43.1
Date first
1937
Date last
1943
Obs
3
Pa first
24
Pa last
28
P.A. Now (θ)
28°
Sep first
3.1
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
10.28
Mag sec
13.60
delta mag (ΔM)
3.32
Spectral class
A0 (white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
27.5
Precise sep
3.15
Constellation
Sagittarius
SAO
161829
Tycho2
6280-01883-1
last precise pa
27.5
last precise sep
3.15
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18477-1633 RST4020 1943 3 28 3.2 10.28 13.60 A0 184741.01-163243.1

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