12487-2534 DON 558

 
 
12h 48m 47.48s -25 33' 42.2" P.A. 279 sep 4.9 mag 11.75,11.89
 
 
Coord 2000
12487-2534
Discov num
DON 558
Comp
Coord arcsec 2000
12 48 47.48 -25 33 42.2
Date first
1911
Date last
2010
Obs
7
Pa first
273
Pa last
279
P.A. Now (θ)
279°
Sep first
5.1
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
11.75
Mag sec
11.89
delta mag (ΔM)
0.14
Spectral class
Pri motion ra
+049
Sec motion ra
-096
Pri motion dec
-011
Sec motion dec
+011
Notes
B (Blue magnitudes)
rPM=1.518
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
279.4
Precise sep
4.89
Constellation
Hydra
last precise pa
279.4
last precise sep
4.89
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12487-2534 DON 558 1998 5 280 4.9 11.75 11.89 DB 124847.48-253342.2
12487-2534 DON 558 1999 6 279 4.9 11.75 11.89 DB 124847.48-253342.2
12487-2534 DON 558 2010 7 280 3.8 11.75 11.89 B 124847.48-253342.2

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