09291-0246 HJ 1167 (Tau1 Hya)

 
 
09h 29m 08.84s -02 46' 08.2" P.A. 4 sep 67.5 mag 4.64,7.28 Sp F6V+K0 dist. 17.33 pc (56.53 l.y.)
 
 
Coord 2000
09291-0246
Discov num
HJ 1167
Comp
Coord arcsec 2000
09 29 08.84 -02 46 08.2
Date first
1782
Date last
2012
Obs
46
Pa first
359
Pa last
4
P.A. Now (θ)
Sep first
61.7
Sep last
67.5
Sep. Now (ρ)
67.5"
Mag pri
4.64
Mag sec
7.28
delta mag (ΔM)
2.64
Spectral class
F6V+K0 (yellow-white/yellow-orange)
Pri motion ra
+099
Sec motion ra
+142
Pri motion dec
-003
Sec motion dec
-017
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.316
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
4
Precise sep
67.47
Name
Tau1 Hya
Constellation
Hydra
SAO
136895
HIP
46509
Tycho2
4885-01568-1
HD
81997
HR
3759
GC
13080
GL
Gl 348A
BD
BD-02 2901
Bayer
Tau 1 Hydrae
Bayer name
Tau1 Hya
Flamsteed
31 Hydrae
Flamsteed name
31 Hya
Distance
17.33
Distance ly
56.53
last precise pa
4
last precise sep
67.47
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09291-0246 HJ 1167 2002 35 5 66.2 4.64 7.28 F6V N DV 092908.84-024608.2
09291-0246 HJ 1167 2009 39 6 65.6 4.64 7.28 F6V NVD 092908.84-024608.2
09291-0246 HJ 1167 2010 40 5 65.8 4.64 7.28 F6V NVD 092908.84-024608.2
09291-0246 HJ 1167 2012 45 4 67.5 4.64 7.28 F6V K0 NVD 092908.84-024608.2

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