20084+8127 HU  957

 
 
20h 08m 26.62s +81 27' 24.0" P.A. 144 sep 4.9 mag 9.08,11.88 Sp F0 dist. 174.22 pc (568.31 l.y.)
 
 
Coord 2000
20084+8127
Discov num
HU  957
Comp
Coord arcsec 2000
20 08 26.62 +81 27 24.0
Date first
1904
Date last
2015
Obs
11
Pa first
149
Pa last
144
P.A. Now (θ)
144°
Sep first
4.9
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
9.08
Mag sec
11.88
delta mag (ΔM)
2.8
Spectral class
F0 (yellow-white)
Pri motion ra
+016
Sec motion ra
+013
Pri motion dec
+009
Sec motion dec
+006
Notes
rPM=0.231 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
143.5
Precise sep
4.941
Constellation
Draco
SAO
3349
HIP
99209
Tycho2
4597-00945-1
BD
BD+81 698
Distance
174.22
Distance ly
568.31
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20084+8127 HU 957 1999 8 143 4.7 9.08 11.88 F0 D 200826.62+812724.0
20084+8127 HU 957 2004 9 144 5.0 9.08 11.88 F0 D 200826.62+812724.0
20084+8127 HU 957 2010 10 146 4.3 9.08 11.88 F0 200826.62+812724.0
20084+8127 HU 957 2015 11 144 4.9 9.08 11.88 F0 200826.62+812724.0

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