21080+0539 HJ 3011AB

 
 
21h 07m 59.02s +05 39' 06.0" P.A. 254 sep 11.5 mag 8.30,14.50 Sp K0
 
 
Coord 2000
21080+0539
Discov num
HJ 3011
Comp
AB
Coord arcsec 2000
21 07 59.02 +05 39 06.0
Date first
1830
Date last
2000
Obs
4
Pa first
255
Pa last
254
P.A. Now (θ)
254°
Sep first
20.0
Sep last
11.5
Sep. Now (ρ)
11.5"
Mag pri
8.30
Mag sec
14.50
delta mag (ΔM)
6.2
Spectral class
K0 (yellow-orange)
Pri motion ra
-022
Sec motion ra
Pri motion dec
-117
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
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
 
 
Precise pa
254.2
Precise sep
11.5
Cdsa2 id
HJ 3011 AB
Constellation
Equuleus
Ra deg
21.13306111111111
De deg
5.651666666666667
last precise pa
254.2
last precise sep
11.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21080+0539 HJ 3011 AB 2000 4 254 11.5 8.30 14.50 K0 210759.02+053906.0

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