15514+2921 COU 617

 
 
15h 51m 26.69s +29 21' 24.0" P.A. 97 sep 4.8 mag 9.53,12.53 Sp F2 dist. 265.96 pc (867.56 l.y.)
 
 
Coord 2000
15514+2921
Discov num
COU 617
Comp
Coord arcsec 2000
15 51 26.69 +29 21 24.0
Date first
1971
Date last
2015
Obs
10
Pa first
100
Pa last
97
P.A. Now (θ)
97°
Sep first
4.3
Sep last
4.8
Sep. Now (ρ)
4.8"
Mag pri
9.53
Mag sec
12.53
delta mag (ΔM)
3
Spectral class
F2 (yellow-white)
Pri motion ra
-015
Sec motion ra
-009
Pri motion dec
-015
Sec motion dec
-012
Notes
rPM=0.316
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
97.2
Precise sep
4.77
Constellation
Corona Borealis
SAO
84041
HIP
77671
Tycho2
2040-01765-1
HD
142068
BD
BD+29 2724
Distance
265.96
Distance ly
867.56
last precise pa
97.2
last precise sep
4.77
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15514+2921 COU 617 2000 7 99 4.5 9.53 12.53 F2 D 155126.69+292124.0
15514+2921 COU 617 2002 9 98 4.7 9.53 12.53 F2 D 155126.69+292124.0
15514+2921 COU 617 2015 10 97 4.8 9.53 12.53 F2 155126.69+292124.0

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