18583+0347 HDS2690

 
 
18h 58m 20.02s +03 46' 47.3" P.A. 19 sep 0.1 mag 8.70,10.17 Sp B9 dist. 317.46 pc (1035.55 l.y.)
 
 
Coord 2000
18583+0347
Discov num
HDS2690
Comp
Coord arcsec 2000
18 58 20.02 +03 46 47.3
Date first
1991
Date last
2015
Obs
2
Pa first
51
Pa last
19
P.A. Now (θ)
19°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
8.70
Mag sec
10.17
delta mag (ΔM)
1.47
Spectral class
B9 (blue-white)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
19.3
Precise sep
0.131
Constellation
Aquila
HIP
93128
Tycho2
0457-00551-1
HD
176055
BD
BD+03 3853
Distance
317.46
Distance ly
1035.55
last precise pa
19.3
last precise sep
0.131
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18583+0347 HDS2690 1991 1 51 0.2 8.70 10.17 B9 185820.02+034647.3
18583+0347 HDS2690 2015 2 19 0.1 8.70 10.17 B9 185820.02+034647.3

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