18509-0821 J  1638

 
 
18h 50m 55.60s -08 20' 57.1" P.A. 264 sep 7.9 mag 11.20,11.20
 
 
Coord 2000
18509-0821
Discov num
J  1638
Comp
Coord arcsec 2000
18 50 55.60 -08 20 57.1
Date first
1892
Date last
2016
Obs
7
Pa first
261
Pa last
264
P.A. Now (θ)
264°
Sep first
7.8
Sep last
7.9
Sep. Now (ρ)
7.9"
Mag pri
11.20
Mag sec
11.20
delta mag (ΔM)
0
Spectral class
Pri motion ra
-001
Sec motion ra
-002
Pri motion dec
-004
Sec motion dec
-001
Notes
rPM=0.767
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
263.8
Precise sep
7.92
Constellation
Scutum
last precise pa
263.8
last precise sep
7.92
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18509-0821 J 1638 1999 4 264 8.1 11.20 11.20 D 185055.60-082057.1
18509-0821 J 1638 2000 5 264 7.9 11.20 11.20 D 185055.60-082057.1
18509-0821 J 1638 2013 6 265 7.9 11.20 11.20 185055.60-082057.1
18509-0821 J 1638 2016 7 264 7.9 11.20 11.20 185055.60-082057.1

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