18540+3723 BU 137 AC

 
 
18h 53m 57.56s +37° 22' 49.7" P.A. 146.00 sep 23.6 mag 8.69,12.00 Sp G5III-IV
 
 
Coord 2000 18540+3723 Discov num BU  137 Comp AC Coord arcsec 2000 18 53 57.56 +37 22 49.7
Date first 1880 Date last 2015 Obs 20
Pa first 142 Pa last 145.8 P.A. Now (θ) 145.8°
Sep first 17.9 Sep last 23.617 Sep. Now (ρ) 23.617"
Mag pri 8.69 Mag sec 12.00 delta mag (ΔM) 3.31 Spectral class G5III-IV (yellow)
Pri motion ra -021 Sec motion ra -007
Pri motion dec +047 Sec motion dec -011
Notes
rPM=1.159
This double is not physical.
 
 
18540+3723 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 175491 67544 18 53 58 +37 22 50 BU 137 AB 2022 136 167 1.6 8.69 9.02 0.33 Y
Show 67544 18 53 58 +37 22 50 BU 137 AC 2015 20 146 23.6 8.69 12.00 3.31 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra SAO 67544 Tycho2 2650-01881-1 Gaia DR2 2094001134684220800
HD 175491