21080+0539 BU 9018CD

 
 
21H 07M 50.14S +05 38' 20.1" P.A. 338 SEP 5.9 MAG 13.00,13.30
 
 
Coord 2000
21080+0539
Discov num
BU 9018
Comp
CD
Coord arcsec 2000
21 07 50.14 +05 38 20.1
Date first
2000
Date last
2015
Obs
3
Pa first
341
Pa last
338
P.A. Now (θ)
338°
Sep first
5.9
Sep last
5.9
Sep. Now (ρ)
5.9"
Mag pri
13.00
Mag sec
13.30
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
+007
Sec motion ra
-006
Pri motion dec
-010
Sec motion dec
+011
Notes
R (Red magnitudes)
rPM=1.971
This double is not physical.
 
 
21080+0539 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21080+0539 HJ 3011 AB 1830 2000 4 254 11.5 8.30 14.50 6.20
Show 21080+0539 BU 9018 AC 1901 2000 3 251 140.3 8.30 12.49 4.19
Show 21080+0539 BU 9018 CD 2000 2015 3 338 5.9 13.00 13.30 0.30 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Equuleus
last precise pa
338
last precise sep
5.93