18435-1725 RST3194

 
 
18h 43m 29.98s -17 25' 01.0" P.A. 87 sep 4 mag 9.76,13.40 Sp B9II
 
 
Coord 2000
18435-1725
Discov num
RST3194
Comp
Coord arcsec 2000
18 43 29.98 -17 25 01.0
Date first
1935
Date last
1999
Obs
5
Pa first
88
Pa last
87
P.A. Now (θ)
87°
Sep first
3.7
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
9.76
Mag sec
13.40
delta mag (ΔM)
3.64
Spectral class
B9II (blue-white)
Pri motion ra
-004
Sec motion ra
Pri motion dec
-008
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
87.3
Precise sep
3.967
Constellation
Sagittarius
SAO
161765
Tycho2
6284-01547-1
HD
172932
last precise pa
87.3
last precise sep
3.967
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18435-1725 RST3194 1998 4 88 3.9 9.76 13.40 B9II D 184329.98-172501.0
18435-1725 RST3194 1999 5 88 4.0 9.76 13.40 B9II D 184329.98-172501.0

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