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
Cdsa2 id
HJ 1609 CD
Constellation
Cygnus
Ra deg
21.06705277777778
De deg
28.690916666666666
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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