20458+0445 BAL2971

 
 
20h 45m 43.17s +04 44' 59.5" P.A. 22 sep 17 mag 11.83,11.36
 
 
Coord 2000
20458+0445
Discov num
BAL2971
Comp
Coord arcsec 2000
20 45 43.17 +04 44 59.5
Date first
1910
Date last
2013
Obs
6
Pa first
31
Pa last
22
P.A. Now (θ)
22°
Sep first
18.7
Sep last
17.0
Sep. Now (ρ)
17"
Mag pri
11.83
Mag sec
11.36
delta mag (ΔM)
0.47
Spectral class
Pri motion ra
+019
Sec motion ra
-009
Pri motion dec
-005
Sec motion dec
-006
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Delphinus
Tycho2
0520-01868-1
last precise pa
21.8
last precise sep
16.98
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20458+0445 BAL2971 2000 3 23 17.1 11.83 11.36 D 204543.17+044459.5
20458+0445 BAL2971 2013 5 22 17.0 11.83 11.36 204543.17+044459.5

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