20177+2025 J 2308 AC

 
 
20h 17m 44.53s +20 25' 23.0" P.A. 284.00 sep 42.5 mag 8.30,14.00 Sp K2
 
 
Coord 2000 20177+2025 Discov num J  2308 Comp AC Coord arcsec 2000 20 17 44.53 +20 25 23.0
Date first 1999 Date last 2019 Obs 10
Pa first 284 Pa last 283.8 P.A. Now (θ) 283.8°
Sep first 42.4 Sep last 42.5 Sep. Now (ρ) 42.5"
Mag pri 8.30 Mag sec 14.00 delta mag (ΔM) 5.7 Spectral class K2 (yellow-orange)
Pri motion ra +009 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes U (Proper motion indicates non-physical)
This double is not physical.
 
 
20177+2025 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 193079 88476 20 17 45 +20 25 23 COU 219 Aa,Ab 2013 14 109 0.4 8.50 9.80 1.30
Show 88476 20 17 45 +20 25 23 J 2308 AB 2019 11 283 37.0 8.30 15.50 7.20
Show 88476 20 17 45 +20 25 23 J 2308 AC 2019 10 284 42.5 8.30 14.00 5.70 <===
Show 88476 20 17 45 +20 25 23 BTG 4 AD 2015 8 170 33.8 8.30 13.50 5.20
Show 88476 20 17 45 +20 25 23 BTG 4 AE 2015 8 267 28.9 8.30 14.20 5.90
Show 20 17 42 +20 25 31 J 2308 BC 2019 10 297 5.7 15.50 14.00 1.50
Sextuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta SAO 88476 Tycho2 1639-00122-1 Gaia DR2 1828622703275056512
HD 193079