20072+3531 SEI 890AB

 
 
20h 07m 12.14s +35 31' 02.9" P.A. 94 sep 15.3 mag 11.39,12.50 Sp B5
 
 
Coord 2000
20072+3531
Discov num
SEI 890
Comp
AB
Coord arcsec 2000
20 07 12.14 +35 31 02.9
Date first
1896
Date last
2015
Obs
10
Pa first
100
Pa last
94
P.A. Now (θ)
94°
Sep first
15.7
Sep last
15.3
Sep. Now (ρ)
15.3"
Mag pri
11.39
Mag sec
12.50
delta mag (ΔM)
1.11
Spectral class
B5 (blue-white)
Pri motion ra
-004
Sec motion ra
+000
Pri motion dec
-006
Sec motion dec
+010
Notes
rPM=1.649
This double is not physical.
 
 
20072+3531 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20072+3531 SEI 890 AB 1896 2015 10 94 15.3 11.39 12.50 1.11 <===
Show 20072+3531 BKO 90 AC 1998 2015 8 52 13.8 11.39 15.10 3.71
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
94.3
Precise sep
15.262
Constellation
Cygnus
SAO
69444
Tycho2
2679-00745-1
Gaia DR2
36539959296
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20072+3531 SEI 890 AB 2002 4 94 15.2 11.39 12.50 D 200712.14+353102.9
20072+3531 SEI 890 AB 2015 6 94 15.2 11.39 12.50 B5 200712.14+353102.9

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