20052+4044 A   381

 
 
20h 05m 10.88s +40 44' 05.1" P.A. 281 sep 0.8 mag 9.75,9.96 Sp A
 
 
Coord 2000
20052+4044
Discov num
A   381
Comp
Coord arcsec 2000
20 05 10.88 +40 44 05.1
Date first
1902
Date last
2011
Obs
8
Pa first
283
Pa last
281
P.A. Now (θ)
281°
Sep first
0.8
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
9.75
Mag sec
9.96
delta mag (ΔM)
0.21
Spectral class
A (white)
Pri motion ra
+010
Sec motion ra
+010
Pri motion dec
+004
Sec motion dec
+004
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
281.4
Precise sep
0.77
Constellation
Cygnus
SAO
49160
Tycho2
3154-02568-1
Gaia DR2
74511126912
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20052+4044 A 381 1991 6 283 0.4 9.75 9.96 A 200510.88+404405.1
20052+4044 A 381 2008 7 277 0.8 9.75 9.96 A 200510.88+404405.1
20052+4044 A 381 2011 8 281 0.8 9.75 9.96 A 200510.88+404405.1

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