20124+3711 SEI 999

 
 
20h 12m 22.97s +37 10' 59.3" P.A. 270 sep 24.8 mag 10.93,12.58 Sp A
 
 
Coord 2000
20124+3711
Discov num
SEI 999
Comp
Coord arcsec 2000
20 12 22.97 +37 10 59.3
Date first
1896
Date last
2015
Obs
9
Pa first
272
Pa last
270
P.A. Now (θ)
270°
Sep first
23.9
Sep last
24.8
Sep. Now (ρ)
24.8"
Mag pri
10.93
Mag sec
12.58
delta mag (ΔM)
1.65
Spectral class
A (white)
Pri motion ra
+003
Sec motion ra
-004
Pri motion dec
-001
Sec motion dec
-005
Notes
rPM=1.259
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
269.6
Precise sep
24.841
Constellation
Cygnus
Tycho2
2683-00891-1
Gaia DR2
95257248768
HD
228292
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20124+3711 SEI 999 1998 3 270 24.7 10.93 12.90 D 201222.97+371059.3
20124+3711 SEI 999 2002 4 270 24.8 10.93 12.90 D 201222.97+371059.3
20124+3711 SEI 999 2015 5 270 24.8 10.93 12.58 A 201222.97+371059.3

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