21424+1750 BU  691AE

 
 
21h 42m 25.22s +17 50' 09.5" P.A. 80.00 sep 118.8 mag 8.90,12.30 Sp K0
 
 
Coord 2000
21424+1750
Discov num
BU  691
Comp
AE
Coord arcsec 2000
21 42 25.22 +17 50 09.5
Date first
1900
Date last
2015
Obs
12
Pa first
68
Pa last
80
P.A. Now (θ)
80°
Sep first
90.3
Sep last
118.8
Sep. Now (ρ)
118.8"
Mag pri
8.90
Mag sec
12.30
delta mag (ΔM)
3.4
Spectral class
K0 (yellow-orange)
Pri motion ra
+024
Sec motion ra
+264
Pri motion dec
-006
Sec motion dec
-112
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.915
This double is not physical.
 
 
21424+1750 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 107339 21 42 25 +17 50 10 HU 373 AB 2011 17 300 0.9 8.90 10.44 1.54
Show 107339 21 42 25 +17 50 10 BU 691 AC 2015 9 249 84.3 8.90 12.53 3.63
Show 107339 21 42 25 +17 50 10 BU 691 AE 2015 12 80 118.8 8.90 12.30 3.40 <===
Show 107339 21 42 20 +17 49 39 FOX 9057 CD 2015 8 238 14.7 11.70 12.30 0.60
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
79.6
Precise sep
118.77
Constellation
Pegasus
SAO
107339
Tycho2
1669-00828-1
Gaia DR2
1774144371710713856
HD
206556
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21424+1750 BU 691 AE 2001 6 79 115.4 8.90 12.30 NU 214225.22+175009.5
21424+1750 BU 691 AE 2015 8 80 118.8 8.90 12.30 K0 NU 214225.22+175009.5

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