16544+5802 MLR 431

 
 
16h 54m 23.81s +58 02' 18.8" P.A. 11 sep 2.2 mag 9.50,12.50 Sp B
 
 
Coord 2000
16544+5802
Discov num
MLR 431
Comp
Coord arcsec 2000
16 54 23.81 +58 02 18.8
Date first
1973
Date last
2006
Obs
2
Pa first
6
Pa last
11
P.A. Now (θ)
11°
Sep first
1.8
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
9.50
Mag sec
12.50
delta mag (ΔM)
3
Spectral class
B (blue-white)
Pri motion ra
-024
Sec motion ra
Pri motion dec
-020
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
10.8
Precise sep
2.23
Constellation
Draco
SAO
30151
Tycho2
3894-00748-1
HD
238624
last precise pa
10.8
last precise sep
2.23
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16544+5802 MLR 431 1973 1 6 1.8 9.50 12.50 B 165423.81+580218.8
16544+5802 MLR 431 2006 2 11 2.2 9.50 12.50 B 165423.81+580218.8

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