18488+6853 LDS2421

 
 
18h 48m 48.07s +68 52' 35.7" P.A. 274 sep 34.6 mag 9.73,17.40 Sp G5V+DA dist. 78.86 pc (257.24 l.y.)
 
 
Coord 2000
18488+6853
Discov num
LDS2421
Comp
Coord arcsec 2000
18 48 48.07 +68 52 35.7
Date first
1954
Date last
2015
Obs
8
Pa first
274
Pa last
274
P.A. Now (θ)
274°
Sep first
33.0
Sep last
34.6
Sep. Now (ρ)
34.6"
Mag pri
9.73
Mag sec
17.40
delta mag (ΔM)
7.67
Spectral class
G5V+DA (yellow)
Pri motion ra
+082
Sec motion ra
+111
Pri motion dec
+164
Sec motion dec
+155
Notes
V (Proper motion indicates physical)
rPM=0.159 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
274.3
Precise sep
34.59
Constellation
Draco
HIP
92306
Tycho2
4431-00619-1
BD
BD+68 1027
Distance
78.86
Distance ly
257.24
last precise pa
274.3
last precise sep
34.59
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18488+6853 LDS2421 1999 2 274 33.9 9.73 17.40 G5 DV 184847.94+685234.3
18488+6853 LDS2421 2013 6 274 34.6 9.73 17.40 G5+DA V 184847.94+685234.3
18488+6853 LDS2421 2015 8 274 34.6 9.73 17.40 G5V+DA V 184848.07+685235.7

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