19563+3505 BU 980 AB (Eta Cyg)

 
 
19h 56m 18.40s +35 05' 00.6" P.A. 206.00 sep 7.2 mag 3.89,12.00 Sp K0III dist. 41.37 pc (134.95 l.y.)
 
 
Coord 2000 19563+3505 Discov num BU  980 Comp AB Coord arcsec 2000 19 56 18.40 +35 05 00.6
Date first 1879 Date last 2017 Obs 17
Pa first 209 Pa last 206.3 P.A. Now (θ) 206.3°
Sep first 7.2 Sep last 7.15 Sep. Now (ρ) 7.15"
Mag pri 3.89 Mag sec 12.00 delta mag (ΔM) 8.11 Spectral class K0III (yellow-orange)
Pri motion ra -034 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
19563+3505 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Eta Cyg 69116 19 56 18 +35 05 01 BU 980 AB 2017 17 206 7.2 3.89 12.00 8.11 <===
Show 69116 19 56 18 +35 05 01 HJ 1455 AC 2016 14 333 45.9 3.89 10.50 6.61
Show 69116 19 56 18 +35 05 01 HJ 1455 AD 2016 12 163 47.5 3.89 10.40 6.51
Show 69116 19 56 18 +35 05 01 BU 980 AE 2016 8 247 56.5 3.89 11.50 7.61
Show 19 56 17 +35 05 41 BU 980 CE 2015 6 206 70.3 12.50 12.90 0.40
Show 19 56 17 +35 05 41 BU 980 CF 2013 2 264 8.3 12.50 14.70 2.20
Sextuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Eta Cyg Var name NSV12586 Cyg Constellation Cygnus SAO 69116
HIP 98110 Tycho2 2677-01816-1 Gaia DR2 2059372363881617536 HD 188947
HR 7615 GC 27622 ADS 13149 BD BD+34 3798
Bayer Eta Cygni Bayer name Eta Cyg Flamsteed 21 Cygni Flamsteed name 21 Cyg
FK5 1521 Distance 41.37 Distance ly 134.95 Bayer greek η Cyg