19108-1209 HO  100

 
 
19h 10m 50.78s -12 08' 35.7" P.A. 325 sep 4.9 mag 8.05,10.25 Sp B9IV
 
 
Coord 2000
19108-1209
Discov num
HO  100
Comp
Coord arcsec 2000
19 10 50.78 -12 08 35.7
Date first
1884
Date last
2016
Obs
13
Pa first
328
Pa last
325
P.A. Now (θ)
325°
Sep first
4.8
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
8.05
Mag sec
10.25
delta mag (ΔM)
2.2
Spectral class
B9IV (blue-white)
Pri motion ra
+014
Sec motion ra
-064
Pri motion dec
-033
Sec motion dec
+124
Notes
rPM=1.256
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
325.2
Precise sep
4.902
Cdsa2 id
HO 100
Constellation
Sagittarius
Tycho2
5716-00269-1
HD
178881
Ra deg
19.180772222222224
De deg
-12.14325
last precise pa
325.2
last precise sep
4.902
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19108-1209 HO 100 1999 10 327 4.8 8.05 10.25 B9IV D 191050.78-120835.7
19108-1209 HO 100 2000 11 325 4.8 8.05 10.25 B9IV D 191050.78-120835.7
19108-1209 HO 100 2015 12 322 5.8 8.05 10.25 B9IV 191050.78-120835.7
19108-1209 HO 100 2016 13 325 4.9 8.05 10.25 B9IV 191050.78-120835.7

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