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
 
 
Precise pa
324.4
Precise sep
27.51
Var name
V989 Cas
Cdsa2 id
ENG 10 AB
Constellation
Cassiopeia
SAO
12190
HIP
10531
Tycho2
4311-01205-1
HD
13579
GL
Gl 90
BD
BD+67 191
Ra deg
2.2618194444444444
De deg
67.67230555555555
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

If you need more information about this double, apply for a data request form to the WDS.