20442+0648 SKF2552AB

 
 
20h 44m 09.96s +06 48' 02.4" P.A. 60 sep 17.6 mag 9.80,17.00 Sp G0+M:
 
 
Coord 2000
20442+0648
Discov num
SKF2552
Comp
AB
Coord arcsec 2000
20 44 09.96 +06 48 02.4
Date first
1953
Date last
2013
Obs
7
Pa first
59
Pa last
60
P.A. Now (θ)
60°
Sep first
16.8
Sep last
17.6
Sep. Now (ρ)
17.6"
Mag pri
9.80
Mag sec
17.00
delta mag (ΔM)
7.2
Spectral class
G0+M: (yellow/red)
Pri motion ra
+040
Sec motion ra
+038
Pri motion dec
+028
Sec motion dec
+025
Notes
V (Proper motion indicates physical)
rPM=0.074 (< 0.3, Physical double)
This double is physical.
 
 
20442+0648 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20442+0648 SKF2552 AB 1953 2013 7 60 17.6 9.80 17.00 7.20 <===
Show 20442+0648 SKF2552 AC 1953 2013 6 31 23.1 9.80 17.60 7.80
Show 20442+0648 SKF2552 BC 1953 2013 6 344 11.4 17.00 17.60 0.60
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
59.7
Precise sep
17.56
Constellation
Delphinus
last precise pa
59.7
last precise sep
17.56
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20442+0648 SKF2552 AB 2013 6 60 17.6 9.80 17.00 G0+M: V 204409.96+064802.4

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