20001+1737 S 730 BC

20h 00m 10.25s +17° 38' 28.3" P.A. 237.00 sep 68.6 mag 8.45,10.21 Sp F5

Coord 2000 20001+1737 Discov num S   730 Comp BC Coord arcsec 2000 20 00 10.25 +17 38 28.3
Date first 1879 Date last 2019 Obs 17
Pa first 239 Pa last 236.6 P.A. Now (θ) 236.6°
Sep first 70.4 Sep last 68.632 Sep. Now (ρ) 68.632"
Mag pri 8.45 Mag sec 10.21 delta mag (ΔM) 1.76 Spectral class F5 (yellow-white)
Pri motion ra -012 Sec motion ra +000
Pri motion dec -006 Sec motion dec -004
Notes N (See Notes)




rPM=0.907

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 SAO 105525 Tycho2 1621-01662-1 Gaia DR2 1820490474772431872
HD 189575 DM BD+17 4187