20155+4030 A   390

 
 
20h 15m 27.59s +40 30' 08.6" P.A. 328 sep 0.8 mag 9.02,10.32 Sp A0
 
 
Coord 2000
20155+4030
Discov num
A   390
Comp
Coord arcsec 2000
20 15 27.59 +40 30 08.6
Date first
1902
Date last
2017
Obs
11
Pa first
324
Pa last
328
P.A. Now (θ)
328°
Sep first
0.7
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
9.02
Mag sec
10.32
delta mag (ΔM)
1.3
Spectral class
A0 (white)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
-005
Sec motion dec
-005
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
327.5
Precise sep
0.8
Constellation
Cygnus
SAO
49376
Tycho2
3155-01818-1
Gaia DR2
56186967296
HD
228608
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20155+4030 A 390 2005 9 325 0.8 9.02 10.32 A0 201527.59+403008.6
20155+4030 A 390 2017 11 328 0.8 9.02 10.32 A0 201527.59+403008.6

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