20377+3322 STF2705AB

 
 
20h 37m 44.32s +33 21' 59.4" P.A. 264.00 sep 3.1 mag 7.48,8.54 Sp K0IIb dist. 595.24 pc (1941.67 l.y.)
 
 
Coord 2000
20377+3322
Discov num
STF2705
Comp
AB
Coord arcsec 2000
20 37 44.32 +33 21 59.4
Date first
1828
Date last
2019
Obs
76
Pa first
263
Pa last
264
P.A. Now (θ)
264°
Sep first
2.5
Sep last
3.1
Sep. Now (ρ)
3.1"
Mag pri
7.48
Mag sec
8.54
delta mag (ΔM)
1.06
Spectral class
K0IIb (yellow-orange)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-005
Sec motion dec
-005
Notes
N (See Notes)
Visually invisible, K-band or other infrared star Nature of this double is uncertain.
 
 
20377+3322 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 70300 20377+3322 STF2705 AB 1828 2019 76 264 3.1 7.48 8.54 1.06 <===
Show 70300 20377+3322 STF2705 AC 1880 2015 9 341 183.4 7.48 12.59 5.11
Show 70300 20377+3322 STF2705 AD 1953 2015 4 3 54.5 7.48 12.93 5.45
Show 70300 20377+3322 STF2705 AE 1930 2015 7 42 74.2 7.48 12.42 4.94
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
263.5
Precise sep
3.11
Constellation
Cygnus
SAO
70300
HIP
101788
Tycho2
2690-01643-1
Gaia DR2
11531587840
HD
196673
BD
BD+32 3883
Distance
595.24
Distance ly
1941.67
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20377+3322 STF2705 AB 2008 80 262 3.0 7.48 8.54 N 203744.32+332159.4
20377+3322 STF2705 AB 2009 83 261 3.4 7.48 8.54 N 203744.32+332159.4
20377+3322 STF2705 AB 2012 85 262 3.1 7.48 8.54 N 203744.32+332159.4
20377+3322 STF2705 AB 2014 73 261 3.2 7.48 8.54 K0IIb N 203744.32+332159.4
20377+3322 STF2705 AB 2015 74 262 3.1 7.48 8.54 K0IIb N 203744.32+332159.4
20377+3322 STF2705 AB 2019 76 264 3.1 7.48 8.54 K0IIb N 203744.32+332159.4

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