18388-0136 BAL 581

 
 
18h 38m 45.99s -01 35' 38.4" P.A. 125 sep 3.9 mag 11.01,11.13 Sp G5
 
 
Coord 2000
18388-0136
Discov num
BAL 581
Comp
Coord arcsec 2000
18 38 45.99 -01 35 38.4
Date first
1892
Date last
2013
Obs
6
Pa first
122
Pa last
125
P.A. Now (θ)
125°
Sep first
4.1
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
11.01
Mag sec
11.13
delta mag (ΔM)
0.12
Spectral class
G5 (yellow)
Pri motion ra
-066
Sec motion ra
-014
Pri motion dec
+012
Sec motion dec
-022
Notes
rPM=0.926
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.5
Precise sep
3.93
Constellation
Serpens
Tycho2
5113-00222-1
last precise pa
124.5
last precise sep
3.93
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18388-0136 BAL 581 1998 4 125 3.9 11.01 11.13 G5 D 183845.99-013538.4
18388-0136 BAL 581 2000 5 125 3.9 11.01 11.13 G5 D 183845.99-013538.4
18388-0136 BAL 581 2013 6 125 3.9 11.01 11.13 G5 183845.99-013538.4

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