02580-1550 HU 811 AB (HD 18498)

02h 58m 02.43s -15° 50' 17.5" P.A. 239.00 sep 1.7 mag 8.13,10.22 Sp F5V dist. 83.4 pc (272.05 l.y.)

Coord 2000 02580-1550 Discov num HU  811 Comp AB Coord arcsec 2000 02 58 02.43 -15 50 17.5
Date first 1903 Date last 2016 Obs 14
Pa first 221 Pa last 239.4 P.A. Now (θ) 239.4°
Sep first 2.1 Sep last 1.697 Sep. Now (ρ) 1.697"
Mag pri 8.13 Mag sec 10.22 delta mag (ΔM) 2.09 Spectral class F5V (yellow-white)
Pri motion ra +159 Sec motion ra +155
Pri motion dec +146 Sec motion dec +137
Notes




rPM=0.046 (< 0.3, Physical double)

This double is physical.



02580-1550 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 18498 148689 02 58 02 -15 50 18 HU 811 AB 2016 14 239 1.7 8.13 10.22 2.09 <===
Show 148689 02 58 02 -15 50 18 WIS 78 AC 2010 2 351 144.0 6.61 13.06 6.45


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 18498 Constellation Eridanus SAO 148689 HIP 13831
Tycho2 5864-00954-1 Gaia DR2 5154129495875420544 HD 18498 GC 3571
ADS 2247 BD BD-16 538 Distance 83.4 Distance ly 272.05