15166-0147 BAL 557

 
 
15h 16m 36.55s -01 47' 14.1" P.A. 305 sep 2.7 mag 11.01,11.22
 
 
Coord 2000
15166-0147
Discov num
BAL 557
Comp
Coord arcsec 2000
15 16 36.55 -01 47 14.1
Date first
1892
Date last
2016
Obs
7
Pa first
286
Pa last
305
P.A. Now (θ)
305°
Sep first
2.7
Sep last
2.7
Sep. Now (ρ)
2.7"
Mag pri
11.01
Mag sec
11.22
delta mag (ΔM)
0.21
Spectral class
Pri motion ra
-006
Sec motion ra
-022
Pri motion dec
-052
Sec motion dec
-035
Notes
rPM=0.446
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
305.2
Precise sep
2.7
Constellation
Serpens
Tycho2
5002-00273-1
last precise pa
305.2
last precise sep
2.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15166-0147 BAL 557 2002 5 305 2.6 11.01 11.22 151636.55-014714.1
15166-0147 BAL 557 2016 7 305 2.7 11.01 11.22 151636.55-014714.1

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