20190+4938 ES 2693BC

 
 
20h 19m 01.10s +49 37' 25.3" P.A. 189 sep 18.5 mag 9.59,12.20 Sp A2
 
 
Coord 2000
20190+4938
Discov num
ES 2693
Comp
BC
Coord arcsec 2000
20 19 01.10 +49 37 25.3
Date first
1911
Date last
2015
Obs
4
Pa first
186
Pa last
189
P.A. Now (θ)
189°
Sep first
17.4
Sep last
18.5
Sep. Now (ρ)
18.5"
Mag pri
9.59
Mag sec
12.20
delta mag (ΔM)
2.61
Spectral class
A2 (white)
Pri motion ra
+005
Sec motion ra
+007
Pri motion dec
+001
Sec motion dec
-010
Notes
rPM=0.916
This double is not physical.
 
 
20190+4938 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 49464 20190+4938 ES 2693 AB 1899 2015 12 110 30.6 8.76 9.59 0.83
Show 49464 20190+4938 ES 2693 BC 1911 2015 4 189 18.5 9.59 12.20 2.61 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
188.9
Precise sep
18.494
Constellation
Cygnus
SAO
49464
Tycho2
3580-01461-1
Gaia DR2
2084930649095703168
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20190+4938 ES 2693 BC 2000 2 189 18.4 9.59 12.20 D 201901.10+493725.3
20190+4938 ES 2693 BC 2003 3 189 18.4 9.59 12.20 D 201901.10+493725.3
20190+4938 ES 2693 BC 2015 4 189 18.5 9.59 12.20 A2 201901.10+493725.3

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