18402+3822 HDS2644

 
 
18h 40m 12.19s +38 22' 01.8" P.A. 60 sep 0.1 mag 6.87,8.06 Sp A6m dist. 146.2 pc (476.9 l.y.)
 
 
Coord 2000
18402+3822
Discov num
HDS2644
Comp
Coord arcsec 2000
18 40 12.19 +38 22 01.8
Date first
1991
Date last
2003
Obs
3
Pa first
275
Pa last
60
P.A. Now (θ)
60°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
6.87
Mag sec
8.06
delta mag (ΔM)
1.19
Spectral class
A6m (white)
Pri motion ra
+019
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
60.1
Precise sep
0.078
Constellation
Lyra
SAO
67233
HIP
91552
Tycho2
3118-01380-1
HD
172741
HR
7019
BD
BD+38 3254
Distance
146.2
Distance ly
476.9
last precise pa
60.1
last precise sep
0.078
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18402+3822 HDS2644 2003 3 60 0.1 6.87 8.06 A6m D 184012.19+382201.8

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