20049+3641 SEI 842

 
 
20h 04m 52.03s +36 40' 39.0" P.A. 243 sep 22.7 mag 10.30,13.19 Sp F8V
 
 
Coord 2000
20049+3641
Discov num
SEI 842
Comp
Coord arcsec 2000
20 04 52.03 +36 40 39.0
Date first
1896
Date last
2015
Obs
9
Pa first
240
Pa last
243
P.A. Now (θ)
243°
Sep first
24.7
Sep last
22.7
Sep. Now (ρ)
22.7"
Mag pri
10.30
Mag sec
13.19
delta mag (ΔM)
2.89
Spectral class
F8V (yellow-white)
Pri motion ra
-010
Sec motion ra
-009
Pri motion dec
-029
Sec motion dec
-008
Notes
rPM=0.685
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
242.7
Precise sep
22.69
Constellation
Cygnus
SAO
69373
Tycho2
2682-02704-1
Gaia DR2
50546140288
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20049+3641 SEI 842 1998 2 242 22.9 10.30 12.50 F8V D 200452.03+364039.0
20049+3641 SEI 842 2002 3 242 22.8 10.30 12.50 F8V D 200452.03+364039.0
20049+3641 SEI 842 2010 4 242 22.8 10.30 13.19 F8V 200452.03+364039.0
20049+3641 SEI 842 2015 5 243 22.7 10.30 13.19 F8V 200452.03+364039.0

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