18530-1623 RST4022

 
 
18h 53m 00.44s -16 22' 53.3" P.A. 314 sep 0.4 mag 7.22,9.35 Sp B8/9II dist. 555.56 pc (1812.24 l.y.)
 
 
Coord 2000
18530-1623
Discov num
RST4022
Comp
Coord arcsec 2000
18 53 00.44 -16 22 53.3
Date first
1938
Date last
1991
Obs
4
Pa first
318
Pa last
314
P.A. Now (θ)
314°
Sep first
0.6
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
7.22
Mag sec
9.35
delta mag (ΔM)
2.13
Spectral class
B8/9II (blue-white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-010
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
314
Precise sep
0.367
Constellation
Sagittarius
SAO
161933
HIP
92671
Tycho2
6281-01454-1
Gaia DR2
4099307282029083904
HD
174801
BD
BD-16 5060
Distance
555.56
Distance ly
1812.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18530-1623 RST4022 1991 4 314 0.4 7.22 9.35 B8/9II D 185300.44-162253.3

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