20047+6353 STF2640AB

 
 
20h 04m 44.51s +63 53' 24.4" P.A. 14 sep 5.7 mag 6.29,9.54 Sp A2II-III
 
 
Coord 2000
20047+6353
Discov num
STF2640
Comp
AB
Coord arcsec 2000
20 04 44.51 +63 53 24.4
Date first
1832
Date last
2013
Obs
73
Pa first
27
Pa last
14
P.A. Now (θ)
14°
Sep first
4.9
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
6.29
Mag sec
9.54
delta mag (ΔM)
3.25
Spectral class
A2II-III (white)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
+038
Sec motion dec
+038
Notes
Nature of this double is uncertain.
 
 
20047+6353 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18692 20047+6353 STF2640 AB 1832 2013 73 14 5.7 6.29 9.54 3.25 <===
Show 18692 20047+6353 STF2640 AC 1880 2003 9 81 153.0 6.29 11.42 5.13
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
13.9
Precise sep
5.694
Constellation
Draco
SAO
18692
Tycho2
4240-01067-1
HD
191174
HR
7695
last precise pa
13.9
last precise sep
5.694
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20047+6353 STF2640 AB 2005 64 17 5.5 6.29 9.54 A2II-III D 200444.51+635324.4
20047+6353 STF2640 AB 2006 66 15 5.7 6.29 9.54 A2II-III D 200444.51+635324.4
20047+6353 STF2640 AB 2010 68 17 5.4 6.29 9.54 A2II-III 200444.51+635324.4
20047+6353 STF2640 AB 2013 73 14 5.7 6.29 9.54 A2II-III 200444.51+635324.4

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