12078-2520 B   220

 
 
12h 07m 46.55s -25 20' 28.2" P.A. 302 sep 6.2 mag 9.34,11.60 Sp F7/8V
 
 
Coord 2000
12078-2520
Discov num
B   220
Comp
Coord arcsec 2000
12 07 46.55 -25 20 28.2
Date first
1911
Date last
2010
Obs
8
Pa first
302
Pa last
302
P.A. Now (θ)
302°
Sep first
7.1
Sep last
6.2
Sep. Now (ρ)
6.2"
Mag pri
9.34
Mag sec
11.60
delta mag (ΔM)
2.26
Spectral class
F7/8V (yellow-white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-024
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
301.6
Precise sep
6.21
Constellation
Hydra
SAO
180492
Tycho2
6671-00204-1
HD
105347
last precise pa
301.6
last precise sep
6.21
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12078-2520 B 220 1998 6 302 6.5 9.34 11.60 F7/8V D 120746.55-252028.2
12078-2520 B 220 1999 7 303 6.4 9.34 11.60 F7/8V D 120746.55-252028.2
12078-2520 B 220 2010 8 303 5.9 9.34 11.60 F7/8V 120746.55-252028.2

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