20042+3728 ALI 654

 
 
20h 04m 06.30s +37 27' 59.8" P.A. 351 sep 10.9 mag 9.03,12.60 Sp B9
 
 
Coord 2000
20042+3728
Discov num
ALI 654
Comp
Coord arcsec 2000
20 04 06.30 +37 27 59.8
Date first
1929
Date last
2015
Obs
9
Pa first
350
Pa last
351
P.A. Now (θ)
351°
Sep first
11.6
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
9.03
Mag sec
12.60
delta mag (ΔM)
3.57
Spectral class
B9 (blue-white)
Pri motion ra
-002
Sec motion ra
-005
Pri motion dec
-005
Sec motion dec
+001
Notes
rPM=1.246
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
351.3
Precise sep
10.945
Constellation
Cygnus
SAO
69349
Tycho2
2682-00072-1
Gaia DR2
90504316544
HD
190550
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20042+3728 ALI 654 1998 2 352 11.0 9.03 12.60 D 200406.30+372759.8
20042+3728 ALI 654 2002 3 351 11.0 9.03 12.60 D 200406.30+372759.8
20042+3728 ALI 654 2010 4 350 11.4 9.03 12.60 B9 200406.30+372759.8
20042+3728 ALI 654 2015 5 351 11.0 9.03 12.60 B9 200406.30+372759.8

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