19191-2018 I   647

 
 
19h 19m 06.66s -20 17' 45.9" P.A. 345 sep 1.6 mag 9.85,11.46 Sp A6/8III
 
 
Coord 2000
19191-2018
Discov num
I   647
Comp
Coord arcsec 2000
19 19 06.66 -20 17 45.9
Date first
1909
Date last
1991
Obs
7
Pa first
340
Pa last
345
P.A. Now (θ)
345°
Sep first
0.9
Sep last
1.6
Sep. Now (ρ)
1.6"
Mag pri
9.85
Mag sec
11.46
delta mag (ΔM)
1.61
Spectral class
A6/8III (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-002
Sec motion dec
-002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
344.6
Precise sep
1.603
Constellation
Sagittarius
Tycho2
6304-00563-1
HD
180930
last precise pa
344.6
last precise sep
1.603
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19191-2018 I 647 1991 7 345 1.6 9.85 11.46 A6/8III 191906.66-201745.9

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