20316+2929 MLB 571

 
 
20h 31m 40.22s +29 29' 20.3" P.A. 261 sep 3.4 mag 12.02,13.50
 
 
Coord 2000
20316+2929
Discov num
MLB 571
Comp
Coord arcsec 2000
20 31 40.22 +29 29 20.3
Date first
1928
Date last
2015
Obs
5
Pa first
265
Pa last
261
P.A. Now (θ)
261°
Sep first
3.0
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
12.02
Mag sec
13.50
delta mag (ΔM)
1.48
Spectral class
Pri motion ra
+033
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
261
Precise sep
3.411
Constellation
Cygnus
SAO
88811
Tycho2
2169-01578-1
Gaia DR2
10522584320
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20316+2929 MLB 571 1999 3 261 3.2 12.02 13.50 D 203140.22+292920.3
20316+2929 MLB 571 2002 4 260 3.3 12.02 13.50 D 203140.22+292920.3
20316+2929 MLB 571 2015 5 261 3.4 12.02 13.50 203140.22+292920.3

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