18424+0040 HDZ   2

 
 
18h 42m 25.12s +00 40' 13.7" P.A. 109 sep 11.8 mag 9.68,11.40 Sp A2
 
 
Coord 2000
18424+0040
Discov num
HDZ   2
Comp
Coord arcsec 2000
18 42 25.12 +00 40 13.7
Date first
1879
Date last
2010
Obs
11
Pa first
113
Pa last
109
P.A. Now (θ)
109°
Sep first
10.6
Sep last
11.8
Sep. Now (ρ)
11.8"
Mag pri
9.68
Mag sec
11.40
delta mag (ΔM)
1.72
Spectral class
A2 (white)
Pri motion ra
-001
Sec motion ra
+006
Pri motion dec
-009
Sec motion dec
-011
Notes
rPM=0.581
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
109.1
Precise sep
11.78
Constellation
Aquila
Tycho2
0447-00028-1
HD
172848
last precise pa
109.1
last precise sep
11.78
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18424+0040 HDZ 2 2001 9 110 11.8 9.68 11.40 A2 D 184225.12+004013.7
18424+0040 HDZ 2 2010 11 111 11.3 9.68 11.40 A2 184225.12+004013.7

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