04220+2818 ITO 21 AD

04h 21m 58.84s +28° 18' 06.6" P.A. 14.00 sep 6.5 mag 7.01,17.73 Sp G5IV

Coord 2000 04220+2818 Discov num ITO  21 Comp AD Coord arcsec 2000 04 21 58.84 +28 18 06.6
Date first 1997 Date last 2011 Obs 3
Pa first 16 Pa last 14.2 P.A. Now (θ) 14.2°
Sep first 6.1 Sep last 6.53 Sep. Now (ρ) 6.53"
Mag pri 7.01 Mag sec 17.73 delta mag (ΔM) 10.72 Spectral class G5IV (yellow)
Pri motion ra +007 Sec motion ra
Pri motion dec -027 Sec motion dec
Notes N U W K (See Notes, Proper motion indicates non-physical, , K-band or other infrared magnitudes)


Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is not physical.



04220+2818 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 04 21 59 +28 18 07 ITO 21 AB 2003 2 56 5.7 7.01 15.87 8.86
Show 04 21 59 +28 18 07 ITO 21 AC 2011 3 152 8.1 7.01 16.73 9.72
Show 04 21 59 +28 18 07 ITO 21 AD 2011 3 14 6.5 7.01 17.73 10.72 <===


Quadruple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Taurus Gaia DR2 164536250037820160