12340-2312 DON 537BC

 
 
12h 34m 03.08s -23 12' 03.7" P.A. 239 sep 0.7 mag 11.50,13.00
 
 
Coord 2000
12340-2312
Discov num
DON 537
Comp
BC
Coord arcsec 2000
12 34 03.08 -23 12 03.7
Date first
1930
Date last
2015
Obs
3
Pa first
240
Pa last
239
P.A. Now (θ)
239°
Sep first
0.6
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
11.50
Mag sec
13.00
delta mag (ΔM)
1.5
Spectral class
Pri motion ra
+012
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
12340-2312 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12340-2312 DON 537 A,BC 1920 2017 7 76 14.9 10.60 11.10 0.50
Show 12340-2312 DON 537 BC 1930 2015 3 239 0.7 11.50 13.00 1.50 <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Tycho2
7688-00402-1
last precise pa
239.1
last precise sep
0.698
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12340-2312 DON 537 BC 1938 2 240 0.6 9.80 11.30 123400.00-231200.0
12340-2312 DON 537 BC 2015 3 239 0.7 11.50 13.00 123403.08-231203.7

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