20047+6353 STF2640AC

 
 
20h 04m 44.51s +63 53' 24.4" P.A. 81 sep 153 mag 6.29,11.42 Sp A2II-III dist. 79.18 pc (258.29 l.y.)
 
 
Coord 2000
20047+6353
Discov num
STF2640
Comp
AC
Coord arcsec 2000
20 04 44.51 +63 53 24.4
Date first
1880
Date last
2003
Obs
9
Pa first
81
Pa last
81
P.A. Now (θ)
81°
Sep first
153.4
Sep last
153.0
Sep. Now (ρ)
153"
Mag pri
6.29
Mag sec
11.42
delta mag (ΔM)
5.13
Spectral class
A2II-III (white)
Pri motion ra
+003
Sec motion ra
+000
Pri motion dec
+038
Sec motion dec
+015
Notes
rPM=0.608
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 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
80.8
Precise sep
153.025
Constellation
Draco
SAO
18692
HIP
98872
Tycho2
4240-01067-1
Gaia DR2
02453812992
HD
191174
HR
7695
BD
BD+63 1593
Distance
79.18
Distance ly
258.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20047+6353 STF2640 AC 1999 8 81 153.1 6.29 11.42 D 200444.51+635324.4
20047+6353 STF2640 AC 2003 9 81 153.0 6.29 11.42 D 200444.51+635324.4

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