20401-2852 SEE 423BC

 
 
20h 40m 08.91s -28 52' 20.2" P.A. 281 sep 0.2 mag 9.68,10.00 Sp F5V
 
 
Coord 2000
20401-2852
Discov num
SEE 423
Comp
BC
Coord arcsec 2000
20 40 08.91 -28 52 20.2
Date first
2008
Date last
2017
Obs
8
Pa first
285
Pa last
281
P.A. Now (θ)
281°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.68
Mag sec
10.00
delta mag (ΔM)
0.32
Spectral class
F5V (yellow-white)
Pri motion ra
+012
Sec motion ra
Pri motion dec
-027
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20401-2852 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20401-2852 SEE 423 AB 1897 2017 20 39 1.2 9.04 9.68 0.64
Show 20401-2852 SEE 423 BC 2008 2017 8 281 0.2 9.68 10.00 0.32 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280.6
Precise sep
0.204
Cdsa2 id
SEE 423 BC
Constellation
Microscopium
Ra deg
20.66914166666667
De deg
-28.87227777777778
last precise pa
280.6
last precise sep
0.204
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20401-2852 SEE 423 BC 2008 4 285 0.2 10.30 10.60 204008.91-285220.2
20401-2852 SEE 423 BC 2013 6 283 0.2 9.68 10.00 204008.91-285220.2
20401-2852 SEE 423 BC 2014 7 281 0.2 9.68 10.00 F5V 204008.91-285220.2
20401-2852 SEE 423 BC 2017 8 281 0.2 9.68 10.00 F5V 204008.91-285220.2

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