15209+4540 HDS2157

 
 
15h 20m 52.92s +45 39' 53.5" P.A. 281 sep 0.7 mag 6.88,9.21 Sp K0 dist. 147.93 pc (482.55 l.y.)
 
 
Coord 2000
15209+4540
Discov num
HDS2157
Comp
Coord arcsec 2000
15 20 52.92 +45 39 53.5
Date first
1991
Date last
2012
Obs
9
Pa first
273
Pa last
281
P.A. Now (θ)
281°
Sep first
0.7
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
6.88
Mag sec
9.21
delta mag (ΔM)
2.33
Spectral class
K0 (yellow-orange)
Pri motion ra
+043
Sec motion ra
+043
Pri motion dec
-026
Sec motion dec
-026
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
281.3
Precise sep
0.717
Constellation
Bootes
SAO
45500
HIP
75107
Tycho2
3482-00905-1
HD
136795
BD
BD+46 2059
Distance
147.93
Distance ly
482.55
last precise pa
281.3
last precise sep
0.717
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15209+4540 HDS2157 1991 2 279 0.4 6.88 9.21 K0 D 152052.92+453953.5
15209+4540 HDS2157 2008 5 280 0.7 6.88 9.21 K0 D 152052.92+453953.5
15209+4540 HDS2157 2010 6 280 0.7 6.88 9.21 K0 D 152052.92+453953.5
15209+4540 HDS2157 2012 9 281 0.7 6.88 9.21 K0 152052.92+453953.5

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