15271+5127 TDS9521

 
 
15h 27m 07.44s +51 26' 53.9" P.A. 138 sep 3.3 mag 11.87,12.40
 
 
Coord 2000
15271+5127
Discov num
TDS9521
Comp
Coord arcsec 2000
15 27 07.44 +51 26 53.9
Date first
1903
Date last
2016
Obs
6
Pa first
123
Pa last
138
P.A. Now (θ)
138°
Sep first
2.5
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
11.87
Mag sec
12.40
delta mag (ΔM)
0.53
Spectral class
Pri motion ra
-018
Sec motion ra
+005
Pri motion dec
+021
Sec motion dec
-002
Notes
rPM=1.176
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
138.3
Precise sep
3.306
Constellation
Bootes
Tycho2
3488-00785-1
last precise pa
138.3
last precise sep
3.306
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15271+5127 TDS9521 1991 2 135 3.3 11.87 12.40 152707.44+512653.9
15271+5127 TDS9521 2003 3 136 3.3 11.87 12.40 152707.44+512653.9
15271+5127 TDS9521 2016 6 138 3.3 11.87 12.40 152707.44+512653.9

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