15121+1859 COU 189 (FL Ser)

 
 
15h 12m 04.27s +18° 58' 33.7" P.A. 142.00 sep 0.5 mag 6.16,8.94 Sp M4III+K5 dist. 221.73 pc (723.28 l.y.)
 
 
Coord 2000 15121+1859 Discov num COU 189 Comp Coord arcsec 2000 15 12 04.27 +18 58 33.7
Date first 1967 Date last 2017 Obs 82
Pa first 141 Pa last 141.5 P.A. Now (θ) 141.5°
Sep first 0.4 Sep last 0.481 Sep. Now (ρ) 0.481"
Mag pri 6.16 Mag sec 8.94 delta mag (ΔM) 2.78 Spectral class M4III+K5 (red/yellow-orange)
Pri motion ra -014 Sec motion ra -014
Pri motion dec +010 Sec motion dec +010
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name FL Ser Constellation Serpens SAO 101429 HIP 74386
Tycho2 1489-01253-1 Gaia DR2 1211957655452767744 HD 134943 HR 5654
GC 20442 BD BD+19 2935 FK5 3199 Distance 221.73
Distance ly 723.28