02157+6740 ENG  10AB (V989 Cas)

 
 
02h 15m 42.55s +67 40' 20.3" P.A. 324 sep 27.5 mag 7.30,9.36 Sp K2V+F2 dist. 18.58 pc (60.61 l.y.)
 
 
Coord 2000
02157+6740
Discov num
ENG  10
Comp
AB
Coord arcsec 2000
02 15 42.55 +67 40 20.3
Date first
1875
Date last
2016
Obs
33
Pa first
109
Pa last
324
P.A. Now (θ)
324°
Sep first
62.4
Sep last
27.5
Sep. Now (ρ)
27.5"
Mag pri
7.30
Mag sec
9.36
delta mag (ΔM)
2.06
Spectral class
K2V+F2 (yellow-orange/yellow-white)
Pri motion ra
+520
Sec motion ra
-002
Pri motion dec
-304
Sec motion dec
-003
Notes
N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=1
This double is not physical.
 
 
02157+6740 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show V989 Cas 12190 02157+6740 ENG 10 AB 1875 2016 33 324 27.5 7.30 9.36 2.06 <===
Show 12192 02157+6740 SHY 10 BC 1991 1999 3 177 999.9 9.36 11.10 1.74
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
V989 Cas
Constellation
Cassiopeia
SAO
12190
HIP
10531
Tycho2
4311-01205-1
HD
13579
GL
Gl 90
BD
BD+67 191
Distance
18.58
Distance ly
60.61
last precise pa
324.4
last precise sep
27.51
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02157+6740 ENG 10 AB 2006 24 330 21.7 7.30 9.36 K2V NLD 021542.55+674020.3
02157+6740 ENG 10 AB 2011 26 328 24.3 7.30 9.36 K2V NLD 021542.55+674020.3
02157+6740 ENG 10 AB 2012 28 327 24.8 7.30 9.36 K2V NLD 021542.55+674020.3
02157+6740 ENG 10 AB 2014 30 325 25.6 7.30 9.36 K2V NL U 021542.55+674020.3
02157+6740 ENG 10 AB 2016 33 324 27.5 7.30 9.36 K2V+F2 NL U 021542.55+674020.3

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