03040+2831 STF 339 AB,C (HD 18984)

03h 03m 59.69s +28° 30' 32.9" P.A. 328.00 sep 13.6 mag 8.24,11.19 Sp B8 dist. 203.25 pc (663 l.y.)

Coord 2000 03040+2831 Discov num STF 339 Comp AB,C Coord arcsec 2000 03 03 59.69 +28 30 32.9
Date first 1828 Date last 2014 Obs 21
Pa first 328 Pa last 327.5 P.A. Now (θ) 327.5°
Sep first 8.0 Sep last 13.559 Sep. Now (ρ) 13.559"
Mag pri 8.24 Mag sec 11.19 delta mag (ΔM) 2.95 Spectral class B8 (blue-white)
Pri motion ra +013 Sec motion ra +009
Pri motion dec -009 Sec motion dec -005
Notes




rPM=0.358

Nature of this double is uncertain.



03040+2831 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 75713 03 03 60 +28 30 33 A 1824 AB 2007 13 272 0.4 8.49 10.05 1.56
Show HD 18984 75713 03 03 60 +28 30 33 STF 339 AB,C 2014 21 328 13.6 8.24 11.19 2.95 <===


Triple system
4 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 18984 Constellation Aries SAO 75713 HIP 14270
Tycho2 1794-00866-1 Gaia DR2 116712785628702208 HD 18984 BD BD+27 471
Distance 203.25 Distance ly 663