20027+3340 DAM   7AC

 
 
20h 02m 46.30s +33 39' 58.0" P.A. 308 sep 60.7 mag 9.59,12.21 Sp G
 
 
Coord 2000
20027+3340
Discov num
DAM   7
Comp
AC
Coord arcsec 2000
20 02 46.30 +33 39 58.0
Date first
1934
Date last
2015
Obs
5
Pa first
305
Pa last
308
P.A. Now (θ)
308°
Sep first
60.6
Sep last
60.7
Sep. Now (ρ)
60.7"
Mag pri
9.59
Mag sec
12.21
delta mag (ΔM)
2.62
Spectral class
G (yellow)
Pri motion ra
-007
Sec motion ra
+012
Pri motion dec
-025
Sec motion dec
-008
Notes
rPM=0.982
This double is not physical.
 
 
20027+3340 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20027+3340 HO 118 AB 1883 2002 12 28 3.0 10.00 11.90 1.90
Show 20027+3340 DAM 7 AC 1934 2015 5 308 60.7 9.59 12.21 2.62 <===
Show 20027+3340 WAK 13 CD 1971 2015 4 6 2.9 12.20 14.50 2.30
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
307.9
Precise sep
60.703
Constellation
Cygnus
SAO
69306
Tycho2
2674-05721-1
Gaia DR2
36768873600
HD
331635
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20027+3340 DAM 7 AC 2000 1 308 60.7 10.00 10.00 200246.30+333958.0
20027+3340 DAM 7 AC 2002 5 308 60.7 10.00 10.00 D 200246.30+333958.0
20027+3340 DAM 7 AC 2015 5 308 60.7 9.59 12.21 G 200246.30+333958.0

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