00457+7459 H N 122 (21 Cas)

 
 
00h 45m 39.08s +74 59' 17.1" P.A. 161.00 sep 35.9 mag 5.66,10.57 Sp A2IV dist. 93.02 pc (303.43 l.y.)
 
 
Coord 2000 00457+7459 Discov num H N 122 Comp Coord arcsec 2000 00 45 39.08 +74 59 17.1
Date first 1896 Date last 2015 Obs 15
Pa first 160 Pa last 160.5 P.A. Now (θ) 160.5°
Sep first 36.6 Sep last 35.883 Sep. Now (ρ) 35.883"
Mag pri 5.66 Mag sec 10.57 delta mag (ΔM) 4.91 Spectral class A2IV (white)
Pri motion ra -015 Sec motion ra -012
Pri motion dec -022 Sec motion dec -025
Notes N (See Notes)
rPM=0.153 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 21 Cas Var name YZ Cas Constellation Cassiopeia SAO 4216
HIP 3572 Tycho2 4307-02167-1 Gaia DR2 539047365205648128 HD 4161
HR 192 GC 891 ADS 624 BD BD+74 27
Flamsteed 21 Cassiopeiae Flamsteed name 21 Cas FK5 24 Distance 93.02
Distance ly 303.43