15549+3422 STT 302 AB (HD 142742)

 
 
15h 54m 56.85s +34° 21' 45.0" P.A. 51.00 sep 27.9 mag 7.16,10.42 Sp A3V dist. 183.82 pc (599.62 l.y.)
 
 
Coord 2000 15549+3422 Discov num STT 302 Comp AB Coord arcsec 2000 15 54 56.85 +34 21 45.0
Date first 1843 Date last 2017 Obs 29
Pa first 54 Pa last 50.5 P.A. Now (θ) 50.5°
Sep first 28.6 Sep last 27.9 Sep. Now (ρ) 27.9"
Mag pri 7.16 Mag sec 10.42 delta mag (ΔM) 3.26 Spectral class A3V (white)
Pri motion ra -006 Sec motion ra -015
Pri motion dec +005 Sec motion dec +009
Notes
rPM=0.563
Nature of this double is uncertain.
 
 
15549+3422 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 142742 64970 15 54 57 +34 21 45 STT 302 AB 2017 29 51 27.9 7.16 10.42 3.26 <===
Show 64970 15 54 57 +34 21 45 WAL 68 AC 2015 9 358 65.3 7.14 12.92 5.78
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 142742 Constellation Corona Borealis SAO 64970 HIP 77933
Tycho2 2575-01509-1 Gaia DR2 1371690959524666496 HD 142742 GC 21385
BD BD+34 2709 Distance 183.82 Distance ly 599.62