18394-0239 BRT1948

 
 
18h 39m 21.80s -02 38' 36.3" P.A. 247 sep 4.1 mag 9.80,12.30 Sp F0
 
 
Coord 2000
18394-0239
Discov num
BRT1948
Comp
Coord arcsec 2000
18 39 21.80 -02 38 36.3
Date first
1931
Date last
2003
Obs
5
Pa first
251
Pa last
247
P.A. Now (θ)
247°
Sep first
3.3
Sep last
4.1
Sep. Now (ρ)
4.1"
Mag pri
9.80
Mag sec
12.30
delta mag (ΔM)
2.5
Spectral class
F0 (yellow-white)
Pri motion ra
-009
Sec motion ra
Pri motion dec
-014
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246.8
Precise sep
4.14
Constellation
Serpens
Tycho2
5117-00577-1
HD
172274
last precise pa
246.8
last precise sep
4.14
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18394-0239 BRT1948 2003 5 247 4.1 9.80 12.30 F0 D 183921.80-023836.3

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