19181-1557 S   716

 
 
19h 18m 05.55s -15 57' 13.4" P.A. 196 sep 5 mag 8.37,8.62 Sp B9.5V dist. 193.42 pc (630.94 l.y.)
 
 
Coord 2000
19181-1557
Discov num
S   716
Comp
Coord arcsec 2000
19 18 05.55 -15 57 13.4
Date first
1825
Date last
2015
Obs
51
Pa first
196
Pa last
196
P.A. Now (θ)
196°
Sep first
4.9
Sep last
5.0
Sep. Now (ρ)
5"
Mag pri
8.37
Mag sec
8.62
delta mag (ΔM)
0.25
Spectral class
B9.5V (blue-white)
Pri motion ra
+011
Sec motion ra
+009
Pri motion dec
+002
Sec motion dec
-001
Notes
N (See Notes)
rPM=0.322
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
196.1
Precise sep
4.961
Constellation
Sagittarius
HIP
94855
Tycho2
6296-01534-1
Gaia DR2
89554020608
HD
180695
BD
BD-16 5256
Distance
193.42
Distance ly
630.94
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19181-1557 S 716 2004 47 195 5.4 8.37 8.62 B9.5V N D 191805.55-155713.4
19181-1557 S 716 2010 50 194 5.0 8.37 8.62 B9.5V N 191805.55-155713.4
19181-1557 S 716 2015 51 196 5.0 8.37 8.62 B9.5V N 191805.55-155713.4

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