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
Cdsa2 id
STF 2490
Constellation
Aquila
Ra deg
19.29998888888889
De deg
-3.473027777777778
last precise pa
247.1
last precise sep
3.49
 
 
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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