18548+3306 DAL  10

 
 
18h 54m 46.08s +33 06' 24.8" P.A. 51 sep 30.5 mag 10.43,12.55 Sp K2
 
 
Coord 2000
18548+3306
Discov num
DAL  10
Comp
Coord arcsec 2000
18 54 46.08 +33 06 24.8
Date first
1983
Date last
2010
Obs
5
Pa first
52
Pa last
51
P.A. Now (θ)
51°
Sep first
30.5
Sep last
30.5
Sep. Now (ρ)
30.5"
Mag pri
10.43
Mag sec
12.55
delta mag (ΔM)
2.12
Spectral class
K2 (yellow-orange)
Pri motion ra
-003
Sec motion ra
-002
Pri motion dec
-019
Sec motion dec
-011
Notes
U (Proper motion indicates non-physical)
rPM=0.419
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
50.7
Precise sep
30.54
Constellation
Lyra
last precise pa
50.7
last precise sep
30.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18548+3306 DAL 10 2002 2 51 30.9 10.43 12.55 D 185446.08+330624.8
18548+3306 DAL 10 2010 5 51 30.5 10.43 12.55 K2 U 185446.08+330624.8

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