18303+3120 LDS4789

 
 
18h 30m 19.03s +31 19' 02.9" P.A. 154 sep 56.2 mag 13.80,14.00
 
 
Coord 2000
18303+3120
Discov num
LDS4789
Comp
Coord arcsec 2000
18 30 19.03 +31 19 02.9
Date first
1960
Date last
2010
Obs
4
Pa first
154
Pa last
154
P.A. Now (θ)
154°
Sep first
57.0
Sep last
56.2
Sep. Now (ρ)
56.2"
Mag pri
13.80
Mag sec
14.00
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-003
Sec motion ra
-013
Pri motion dec
-006
Sec motion dec
-008
Notes
rPM=0.668
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
153.5
Precise sep
56.21
Constellation
Lyra
last precise pa
153.5
last precise sep
56.21
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18303+3120 LDS4789 1998 2 154 56.3 13.80 14.00 D 183019.03+311902.9
18303+3120 LDS4789 2002 3 154 56.3 13.80 14.00 D 183019.03+311902.9
18303+3120 LDS4789 2010 4 154 56.2 13.80 14.00 183019.03+311902.9

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