20318+4118 CAN   4AB

 
 
20h 31m 45.40s +41 18' 26.8" P.A. 38.00 sep 1.3 mag 12.30,15.10 Sp O8I
 
 
Coord 2000
20318+4118
Discov num
CAN   4
Comp
AB
Coord arcsec 2000
20 31 45.40 +41 18 26.8
Date first
2008
Date last
2008
Obs
2
Pa first
38
Pa last
38
P.A. Now (θ)
38°
Sep first
1.3
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
12.30
Mag sec
15.10
delta mag (ΔM)
2.8
Spectral class
O8I (blue)
Pri motion ra
-006
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
20318+4118 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 49745 20318+4118 CAN 4 AB 2008 2008 2 38 1.3 12.30 15.10 2.80 <===
Show 49745 20318+4118 CAN 32 AC 2008 2008 2 282 6.4 7.30 13.20 5.90
Show 49745 20318+4118 CAN 32 AD 2008 2008 2 338 6.9 7.30 12.90 5.60
Show 49745 20318+4118 CAN 32 AE 2008 2008 2 0 8.0 7.30 14.40 7.10
Show 49745 20318+4118 CAN 32 AF 2008 2008 1 226 9.0 7.30 15.50 8.20
Show 49745 20318+4118 CAN 32 AG 2008 2008 1 348 11.9 7.30 15.60 8.30
Show 49745 20318+4118 CAN 32 AH 1998 2008 3 183 13.0 7.30 13.40 6.10
Octuple system
8 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
37.6
Precise sep
1.31
Constellation
Cygnus
SAO
49745
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20318+4118 CAN 4 AB 2008 2 38 1.3 12.30 15.10 O8I V 203145.40+411826.8

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