18402+3822 HDS 2644 (HD 172741)

18h 40m 12.19s +38° 22' 01.8" P.A. 76.00 sep 0.1 mag 6.87,8.06 Sp A6m dist. 146.2 pc (476.9 l.y.)

Coord 2000 18402+3822 Discov num HDS2644 Comp Coord arcsec 2000 18 40 12.19 +38 22 01.8
Date first 1991 Date last 2016 Obs 4
Pa first 275 Pa last 76.4 P.A. Now (θ) 76.4°
Sep first 0.1 Sep last 0.095 Sep. Now (ρ) 0.095"
Mag pri 6.87 Mag sec 8.06 delta mag (ΔM) 1.19 Spectral class A6m (white)
Pri motion ra +019 Sec motion ra
Pri motion dec +007 Sec motion dec
Notes O (Orbital solution)




This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Name HD 172741 Constellation Lyra SAO 67233 HIP 91552
Tycho2 3118-01380-1 Gaia DR2 2097673095503916288 HD 172741 HR 7019
GC 25553 BD BD+38 3254 Distance 146.2 Distance ly 476.9