WDS 09144+0219 HJ 2489 AB (The Hya) : NOTES
 
 
discov_num notes refcode
HJ 2489 the Hya = 22 Hya. A is a SB.
AB: Optical pair, based on study of relative motion of the components
using the method of apparent motion parameters. Kiy2008
AB: H 5 54. MEv2010
B and C optical. No earlier measures of D. B__1963b
 
 
REFERENCES
 
 
refcode metd author reference
B__1963b Ma j van den Bos, W.H. 1963AJ.....68..582V
B__1963b AJ 68, 582, 1963
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
212 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09144+0219 HJ 2489 AB 2000 20 234 20.7 3.85 9.90 B9.5V NLD 091421.86+021851.3
09144+0219 HJ 2489 AB 2008 21 241 20.3 3.85 9.90 B9.5V NLD 091421.86+021851.3
09144+0219 HJ 2489 AB 2011 22 243 20.4 3.85 9.90 B9.5V NLD 091421.86+021851.3
09144+0219 HJ 2489 AB 2013 23 247 20.0 3.85 9.90 B9.5V NLD 091421.86+021851.3
09144+0219 HJ 2489 AB 2019 25 248 20.9 3.85 9.90 B9.5V NL U 091421.86+021851.3

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