15443+0626 HJ 1277AB (Unukalhai)

 
 
15h 44m 16.00s +06 25' 31.9" P.A. 334 sep 57.6 mag 2.65,11.80 Sp K2III dist. 22.68 pc (73.98 l.y.)
 
 
Coord 2000
15443+0626
Discov num
HJ 1277
Comp
AB
Coord arcsec 2000
15 44 16.00 +06 25 31.9
Date first
1828
Date last
2014
Obs
15
Pa first
2
Pa last
334
P.A. Now (θ)
334°
Sep first
50.0
Sep last
57.6
Sep. Now (ρ)
57.6"
Mag pri
2.65
Mag sec
11.80
delta mag (ΔM)
9.15
Spectral class
K2III (yellow-orange)
Pri motion ra
+134
Sec motion ra
-011
Pri motion dec
+045
Sec motion dec
-009
Notes
N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=1.095
This double is not physical.
 
 
15443+0626 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Unukalhai 121157 15443+0626 HJ 1277 AB 1828 2014 15 334 57.6 2.65 11.80 9.15 <===
Show 121157 15443+0626 HJ 1277 AC 1828 2000 4 267 142.9 2.74 13.90 11.16
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
333.8
Precise sep
57.58
Common name
Unukalhai
Meaning
snake's neck
Other names
UNUK, UNUK EL HAIA, COR SERPENTIS
Constellation
Serpens
SAO
121157
HIP
77070
HD
140573
HR
5854
GC
21158
GL
Gl 596.2
BD
BD+06 3088
Bayer
Alpha Serpentis
Bayer name
Alp Ser
Flamsteed
24 Serpentis
Flamsteed name
24 Ser
Distance
22.68
Distance ly
73.98
last precise pa
333.8
last precise sep
57.58
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15443+0626 HJ 1277 AB 2000 11 336 57.6 2.65 11.80 K2III NLD 154416.00+062531.9
15443+0626 HJ 1277 AB 2013 13 333 57.4 2.65 11.80 K2III NLD 154416.00+062531.9
15443+0626 HJ 1277 AB 2014 15 334 57.6 2.65 11.80 K2III NLDU 154416.00+062531.9

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