18488+3136 LDS1015

 
 
18h 48m 49.32s +31 36' 17.9" P.A. 301 sep 110.4 mag 12.50,14.60
 
 
Coord 2000
18488+3136
Discov num
LDS1015
Comp
Coord arcsec 2000
18 48 49.32 +31 36 17.9
Date first
1936
Date last
2010
Obs
4
Pa first
303
Pa last
301
P.A. Now (θ)
301°
Sep first
110.0
Sep last
110.4
Sep. Now (ρ)
110.4"
Mag pri
12.50
Mag sec
14.60
delta mag (ΔM)
2.1
Spectral class
Pri motion ra
+011
Sec motion ra
+016
Pri motion dec
+050
Sec motion dec
+036
Notes
rPM=0.29 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301.4
Precise sep
110.4
Constellation
Lyra
Tycho2
2638-00240-1
last precise pa
301.4
last precise sep
110.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18488+3136 LDS1015 1998 2 302 110.5 12.50 14.60 D 184849.32+313617.9
18488+3136 LDS1015 2002 3 301 110.5 12.50 14.60 D 184849.32+313617.9
18488+3136 LDS1015 2010 4 301 110.4 12.50 14.60 184849.32+313617.9

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