04185+2817 HAT 4 AB

 
 
04h 18m 31.13s +28° 16' 30.1" P.A. 11.00 sep 30.0 mag 15.29,15.34 Sp K6V+M2V
 
 
Coord 2000 04185+2817 Discov num HAT   4 Comp AB Coord arcsec 2000 04 18 31.13 +28 16 30.1
Date first 1955 Date last 2015 Obs 12
Pa first 12 Pa last 11.4 P.A. Now (θ) 11.4°
Sep first 30.2 Sep last 30.023 Sep. Now (ρ) 30.023"
Mag pri 15.29 Mag sec 15.34 delta mag (ΔM) 0.05 Spectral class K6V+M2V (yellow-orange/red)
Pri motion ra -017 Sec motion ra +008
Pri motion dec -066 Sec motion dec -024
Notes N (See Notes)
rPM=0.717
Nature of this double is uncertain.
 
 
04185+2817 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 04 18 31 +28 16 30 GHE 5 Aa,Ab 2018 20 177 0.6 10.10 10.40 0.30
Show 04 18 31 +28 16 30 HAT 4 AB 2015 12 11 30.0 15.29 15.34 0.05 <===
Show 04 18 32 +28 16 59 LEI 9 Ba,Bb 2018 9 89 0.4 9.50 11.30 1.80
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus Gaia DR2 164507353496637952