20027+3349 SEI 815AB

 
 
20h 02m 44.05s +33 48' 26.9" P.A. 358 sep 19.4 mag 10.91,12.60
 
 
Coord 2000
20027+3349
Discov num
SEI 815
Comp
AB
Coord arcsec 2000
20 02 44.05 +33 48 26.9
Date first
1894
Date last
2015
Obs
10
Pa first
1
Pa last
358
P.A. Now (θ)
358°
Sep first
20.1
Sep last
19.4
Sep. Now (ρ)
19.4"
Mag pri
10.91
Mag sec
12.60
delta mag (ΔM)
1.69
Spectral class
Pri motion ra
+005
Sec motion ra
-003
Pri motion dec
-005
Sec motion dec
-006
Notes
N (See Notes)
rPM=1.14
This double is not physical.
 
 
20027+3349 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20027+3349 SEI 815 AB 1894 2015 10 358 19.4 10.91 12.60 1.69 <===
Show 20027+3349 SEI 816 AC 1894 2015 10 113 20.6 10.50 11.00 0.50
Show 20027+3349 BKO 523 AD 1998 2015 7 341 5.0 10.50 13.00 2.50
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
358.3
Precise sep
19.391
Constellation
Cygnus
Tycho2
2678-01576-1
Gaia DR2
11751580544
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20027+3349 SEI 815 AB 1998 3 359 19.3 10.50 11.00 D 200244.03+334826.5
20027+3349 SEI 815 AB 2008 4 359 19.6 10.50 11.00 D 200244.03+334826.5
20027+3349 SEI 815 AB 2015 6 358 19.4 10.91 12.60 N 200244.05+334826.9

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