18383-2525 HO 436 (HD 171878)

 
 
18h 38m 15.25s -25° 25' 17.2" P.A. 178.00 sep 4.1 mag 8.30,10.12 Sp B9.5IV dist. 395.26 pc (1289.34 l.y.)
 
 
Coord 2000 18383-2525 Discov num HO  436 Comp Coord arcsec 2000 18 38 15.25 -25 25 17.2
Date first 1889 Date last 1999 Obs 14
Pa first 177 Pa last 177.6 P.A. Now (θ) 177.6°
Sep first 4.2 Sep last 4.05 Sep. Now (ρ) 4.05"
Mag pri 8.30 Mag sec 10.12 delta mag (ΔM) 1.82 Spectral class B9.5IV (blue-white)
Pri motion ra +007 Sec motion ra +004
Pri motion dec +006 Sec motion dec -008
Notes
rPM=1.553
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 171878 Constellation Sagittarius SAO 187073 HIP 91380
Tycho2 6862-01675-1 Gaia DR2 4076395108993661952 HD 171878 GC 25461
CD CD-2513305 Distance 395.26 Distance ly 1289.34