20001+1737 S 730 AD

 
 
20h 00m 08.28s +17 36' 38.6" P.A. 198.00 sep 41.1 mag 7.16,9.90 Sp K0 dist. 666.67 pc (2174.68 l.y.)
 
 
Coord 2000 20001+1737 Discov num S   730 Comp AD Coord arcsec 2000 20 00 08.28 +17 36 38.6
Date first 1879 Date last 2015 Obs 17
Pa first 198 Pa last 198.2 P.A. Now (θ) 198.2°
Sep first 39.8 Sep last 41.083 Sep. Now (ρ) 41.083"
Mag pri 7.16 Mag sec 9.90 delta mag (ΔM) 2.74 Spectral class K0 (yellow-orange)
Pri motion ra +005 Sec motion ra +000
Pri motion dec +011 Sec motion dec -007
Notes N (See Notes)
rPM=1.546
This double is not physical.
 
 
20001+1737 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 189576 105525 20 00 08 +17 36 39 S 730 AB 2014 27 14 112.8 7.16 8.45 1.29
Show 20 00 08 +17 36 39 S 730 AC 2015 23 338 78.6 7.16 10.21 3.05
Show 20 00 08 +17 36 39 S 730 AD 2015 17 198 41.1 7.16 9.90 2.74 <===
Show 20 00 08 +17 36 39 HO 638 AE 1928 4 283 2.7 7.16 10.20 3.04
Show 105525 20 00 10 +17 38 28 S 730 BC 2019 17 237 68.6 8.45 10.21 1.76
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta HIP 98443 Tycho2 1621-01879-1 Gaia DR2 1820490268613989504
HD 189576 BD BD+17 4185 Distance 666.67 Distance ly 2174.68