18544+1118 HJ 1353

 
 
18h 54m 21.17s +11 18' 02.3" P.A. 207 sep 8.4 mag 10.05,11.10 Sp A0
 
 
Coord 2000
18544+1118
Discov num
HJ 1353
Comp
Coord arcsec 2000
18 54 21.17 +11 18 02.3
Date first
1828
Date last
2010
Obs
12
Pa first
212
Pa last
207
P.A. Now (θ)
207°
Sep first
5.0
Sep last
8.4
Sep. Now (ρ)
8.4"
Mag pri
10.05
Mag sec
11.10
delta mag (ΔM)
1.05
Spectral class
A0 (white)
Pri motion ra
-004
Sec motion ra
-001
Pri motion dec
-006
Sec motion dec
-007
Notes
rPM=0.439
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
207.1
Precise sep
8.42
Constellation
Aquila
Tycho2
1047-01203-1
HD
229971
last precise pa
207.1
last precise sep
8.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18544+1118 HJ 1353 1999 9 207 8.4 10.05 11.10 A0 D 185421.17+111802.3
18544+1118 HJ 1353 2010 11 207 8.4 10.05 11.10 A0 D 185421.17+111802.3

If you need more information about this double, apply for a data request form to the WDS.