18100-2157 BRT1515

 
 
18h 09m 57.72s -21 57' 19.2" P.A. 36 sep 4.4 mag 10.24,10.66
 
 
Coord 2000
18100-2157
Discov num
BRT1515
Comp
Coord arcsec 2000
18 09 57.72 -21 57 19.2
Date first
1920
Date last
2010
Obs
7
Pa first
27
Pa last
36
P.A. Now (θ)
36°
Sep first
2.7
Sep last
4.4
Sep. Now (ρ)
4.4"
Mag pri
10.24
Mag sec
10.66
delta mag (ΔM)
0.42
Spectral class
Pri motion ra
-043
Sec motion ra
+012
Pri motion dec
-102
Sec motion dec
-003
Notes
rPM=1.023
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
35.5
Precise sep
4.39
Constellation
Sagittarius
Tycho2
6276-00387-2
HD
313941
last precise pa
35.5
last precise sep
4.39
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18100-2157 BRT1515 1999 5 37 4.2 10.24 10.66 D 180957.72-215719.2
18100-2157 BRT1515 2010 7 36 4.4 10.24 10.66 180957.72-215719.2

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