15206+5520 HJ 2779

 
 
15h 20m 38.11s +55 19' 30.9" P.A. 347 sep 10.9 mag 8.07,10.78 Sp F5 dist. 87.41 pc (285.13 l.y.)
 
 
Coord 2000
15206+5520
Discov num
HJ 2779
Comp
Coord arcsec 2000
15 20 38.11 +55 19 30.9
Date first
1831
Date last
2013
Obs
22
Pa first
352
Pa last
347
P.A. Now (θ)
347°
Sep first
12.0
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
8.07
Mag sec
10.78
delta mag (ΔM)
2.71
Spectral class
F5 (yellow-white)
Pri motion ra
+004
Sec motion ra
+003
Pri motion dec
+032
Sec motion dec
+032
Notes
N (See Notes)
rPM=0.031 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
347.1
Precise sep
10.9
Constellation
Draco
SAO
29488
HIP
75088
Tycho2
3871-01359-1
HD
136883
BD
BD+55 1744
Distance
87.41
Distance ly
285.13
last precise pa
347.1
last precise sep
10.9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15206+5520 HJ 2779 2005 18 348 11.2 8.07 10.78 F5 D 152038.11+551930.9
15206+5520 HJ 2779 2008 19 347 10.9 8.07 10.78 F5 D 152038.11+551930.9
15206+5520 HJ 2779 2013 21 347 10.9 8.07 10.78 F5 N 152038.11+551930.9

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