20313+4121 MZA  39AB

 
 
20h 31m 18.33s +41 21' 21.7" P.A. 215.00 sep 4.4 mag 11.80,16.30 Sp O9.5IV
 
 
Coord 2000
20313+4121
Discov num
MZA  39
Comp
AB
Coord arcsec 2000
20 31 18.33 +41 21 21.7
Date first
2008
Date last
2018
Obs
3
Pa first
342
Pa last
215
P.A. Now (θ)
215°
Sep first
1.2
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
11.80
Mag sec
16.30
delta mag (ΔM)
4.5
Spectral class
O9.5IV (blue)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
V R (Proper motion indicates physical, Red magnitudes)
This double is physical.
 
 
20313+4121 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20313+4121 MZA 39 AB 2008 2018 3 215 4.4 11.80 16.30 4.50 <===
Show 20313+4121 CAN 30 AC 2008 2008 1 185 6.6 7.70 15.30 7.60
Show 20313+4121 CAN 30 AD 2008 2008 1 101 10.7 7.70 15.00 7.30
Show 20313+4121 CAN 30 AE 2008 2008 1 116 11.1 7.70 15.10 7.40
Show 20313+4121 CAN 30 AF 2008 2008 1 234 11.4 7.70 14.70 7.00
Show 20313+4121 CAN 30 AG 1998 2008 2 274 12.4 7.70 15.00 7.30
Show 20313+4121 CAN 30 AH 2008 2008 1 275 12.7 7.70 15.40 7.70
Show 20313+4121 CAN 30 AI 2008 2008 1 272 13.3 7.70 13.60 5.90
Ninefold system
9 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
214.6
Precise sep
4.367
Constellation
Cygnus
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20313+4121 MZA 39 AB 2018 3 215 4.4 11.80 16.30 O9.5IV V R 203118.33+412121.7

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