20275+1454 A  1674AC

 
 
20h 27m 31.64s +14 53' 33.6" P.A. 294 sep 8.4 mag 9.72,12.50 Sp A0
 
 
Coord 2000
20275+1454
Discov num
A  1674
Comp
AC
Coord arcsec 2000
20 27 31.64 +14 53 33.6
Date first
1897
Date last
2015
Obs
12
Pa first
293
Pa last
294
P.A. Now (θ)
294°
Sep first
8.4
Sep last
8.4
Sep. Now (ρ)
8.4"
Mag pri
9.72
Mag sec
12.50
delta mag (ΔM)
2.78
Spectral class
A0 (white)
Pri motion ra
+000
Sec motion ra
+001
Pri motion dec
-001
Sec motion dec
-001
Notes
rPM=0.707
Nature of this double is uncertain.
 
 
20275+1454 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20275+1454 A 1674 AB 1907 2018 9 14 0.9 9.80 13.10 3.30
Show 20275+1454 A 1674 AC 1897 2015 12 294 8.4 9.72 12.50 2.78 <===
Show 20275+1454 A 1674 CD 1907 2018 4 171 1.3 12.50 13.50 1.00
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
294.2
Precise sep
8.377
Constellation
Delphinus
SAO
106127
Tycho2
1099-01659-1
Gaia DR2
09142322432
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20275+1454 A 1674 AC 2006 8 290 8.1 9.72 12.50 D 202731.64+145333.6
20275+1454 A 1674 AC 2010 10 289 7.7 9.72 12.50 A0 202731.64+145333.6
20275+1454 A 1674 AC 2011 11 290 8.1 9.72 12.50 A0 202731.64+145333.6
20275+1454 A 1674 AC 2015 12 294 8.4 9.72 12.50 A0 202731.64+145333.6

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