02579+6400 STI 409 AB (HD 18138)

02h 57m 56.81s +63° 59' 46.9" P.A. 208.00 sep 8.9 mag 9.49,10.71 Sp A2

Coord 2000 02579+6400 Discov num STI 409 Comp AB Coord arcsec 2000 02 57 56.81 +63 59 46.9
Date first 1904 Date last 2016 Obs 18
Pa first 197 Pa last 208.1 P.A. Now (θ) 208.1°
Sep first 8.6 Sep last 8.89 Sep. Now (ρ) 8.89"
Mag pri 9.49 Mag sec 10.71 delta mag (ΔM) 1.22 Spectral class A2 (white)
Pri motion ra +000 Sec motion ra +002
Pri motion dec -006 Sec motion dec -006
Notes N V (See Notes, Proper motion indicates physical)




rPM=0.316

This double is physical.



02579+6400 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 18138 12535 02 57 57 +63 59 47 STI 409 AB 2016 18 208 8.9 9.49 10.71 1.22 <===
Show 12535 02 57 57 +63 59 47 STI 409 AC 2015 8 64 44.0 9.49 14.60 5.11


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 18138 Constellation Cassiopeia SAO 12535 Tycho2 4056-01551-1
Gaia DR2 467885220313421952 HD 18138 ADS 2228