19170+0724 A   363

 
 
19h 17m 00.58s +07 24' 01.7" P.A. 172 sep 2 mag 8.77,11.94 Sp B9
 
 
Coord 2000
19170+0724
Discov num
A   363
Comp
Coord arcsec 2000
19 17 00.58 +07 24 01.7
Date first
1902
Date last
1991
Obs
9
Pa first
174
Pa last
172
P.A. Now (θ)
172°
Sep first
1.8
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
8.77
Mag sec
11.94
delta mag (ΔM)
3.17
Spectral class
B9 (blue-white)
Pri motion ra
+007
Sec motion ra
+008
Pri motion dec
+006
Sec motion dec
+002
Notes
rPM=0.447
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
171.8
Precise sep
2.01
Constellation
Aquila
Tycho2
0476-00442-1
HD
180640
last precise pa
171.8
last precise sep
2.01
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19170+0724 A 363 1991 9 172 2.0 8.77 11.94 B9 191700.58+072401.7

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