15171+2851 BGH  57

 
 
15h 17m 05.13s +28 50' 53.7" P.A. 41 sep 574.4 mag 9.30,8.91 Sp K0+G5 dist. 135.69 pc (442.62 l.y.)
 
 
Coord 2000
15171+2851
Discov num
BGH  57
Comp
Coord arcsec 2000
15 17 05.13 +28 50 53.7
Date first
1946
Date last
2010
Obs
7
Pa first
41
Pa last
41
P.A. Now (θ)
41°
Sep first
575.4
Sep last
574.4
Sep. Now (ρ)
574.4"
Mag pri
9.30
Mag sec
8.91
delta mag (ΔM)
0.39
Spectral class
K0+G5 (yellow-orange/yellow)
Pri motion ra
-136
Sec motion ra
-160
Pri motion dec
+074
Sec motion dec
+080
Notes
rPM=0.138 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
40.7
Precise sep
574.44
Constellation
Corona Borealis
SAO
83746
HIP
74792
Tycho2
2031-01275-1
HD
135965
BD
BD+29 2648
Distance
135.69
Distance ly
442.62
last precise pa
40.7
last precise sep
574.44
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15171+2851 BGH 57 2007 2 41 574.3 8.80 9.00 K0+G5 151705.13+285053.7
15171+2851 BGH 57 2010 7 41 574.4 9.30 8.91 K0+G5 151705.13+285053.7

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