02216+7212 HJ 2122

 
 
02h 21m 44.24s +72 11' 41.9" P.A. 139 sep 31.3 mag 10.38,10.41
 
 
Coord 2000
02216+7212
Discov num
HJ 2122
Comp
Coord arcsec 2000
02 21 44.24 +72 11 41.9
Date first
1831
Date last
2015
Obs
14
Pa first
139
Pa last
139
P.A. Now (θ)
139°
Sep first
30.0
Sep last
31.3
Sep. Now (ρ)
31.3"
Mag pri
10.38
Mag sec
10.41
delta mag (ΔM)
0.03
Spectral class
Pri motion ra
+024
Sec motion ra
+025
Pri motion dec
-024
Sec motion dec
-023
Notes
rPM=0.042 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
139.4
Precise sep
31.269
Constellation
Cassiopeia
Tycho2
4319-01415-1
last precise pa
139.4
last precise sep
31.269
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02216+7212 HJ 2122 1999 10 140 31.4 10.38 10.41 D 022144.24+721141.9
02216+7212 HJ 2122 2011 11 140 31.5 10.38 10.41 D 022144.24+721141.9
02216+7212 HJ 2122 2015 13 139 31.3 10.38 10.41 022144.24+721141.9

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