21040+2841 HJ 1609CD

 
 
21h 04m 01.39s +28 41' 27.3" P.A. 194 sep 6.1 mag 13.50,13.80
 
 
Coord 2000
21040+2841
Discov num
HJ 1609
Comp
CD
Coord arcsec 2000
21 04 01.39 +28 41 27.3
Date first
1927
Date last
2002
Obs
3
Pa first
195
Pa last
194
P.A. Now (θ)
194°
Sep first
4.9
Sep last
6.1
Sep. Now (ρ)
6.1"
Mag pri
13.50
Mag sec
13.80
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-003
Sec motion ra
-007
Pri motion dec
+003
Sec motion dec
-014
Notes
rPM=1.116
This double is not physical.
 
 
21040+2841 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 21040+2841 HJ 1609 AB 1828 2012 14 36 8.0 11.04 11.22 0.18
Show 21040+2841 HJ 1609 CD 1927 2002 3 194 6.1 13.50 13.80 0.30 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
193.8
Precise sep
6.062
Constellation
Cygnus
last precise pa
193.8
last precise sep
6.062
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21040+2841 HJ 1609 CD 1998 2 193 6.1 13.50 13.80 D 210401.39+284127.3
21040+2841 HJ 1609 CD 2002 3 194 6.1 13.50 13.80 D 210401.39+284127.3

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