19180-0328 STF2490

 
 
19h 17m 59.96s -03 28' 22.9" P.A. 247 sep 3.5 mag 9.18,11.40 Sp B8
 
 
Coord 2000
19180-0328
Discov num
STF2490
Comp
Coord arcsec 2000
19 17 59.96 -03 28 22.9
Date first
1828
Date last
2014
Obs
23
Pa first
249
Pa last
247
P.A. Now (θ)
247°
Sep first
3.2
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
9.18
Mag sec
11.40
delta mag (ΔM)
2.22
Spectral class
B8 (blue-white)
Pri motion ra
+016
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247.1
Precise sep
3.49
Constellation
Aquila
Tycho2
5134-01830-1
Gaia DR2
4212888512478766592
HD
180784
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19180-0328 STF2490 1999 20 249 2.9 9.18 11.40 B8 D 191759.96-032822.9
19180-0328 STF2490 2000 22 246 3.4 9.18 11.40 B8 D 191759.96-032822.9
19180-0328 STF2490 2014 23 247 3.5 9.18 11.40 B8 191759.96-032822.9

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