WDS 02186+4017 STF 245 AB (HD 14189) : NOTES
 
 
discov_num notes refcode
STF 245 ALI1193.
EGG 2 Aa,Ab: This system has spectral type F2 from SIMBAD and parallax of
10.26 +/- 2.92 mas from van Leeuwen (2007). A previous orbit was VlF2007
calculated by Cvetkovic (2008) with period of 109 years and semimajor Cve2008c
axis of 0.344 arcsec. However, our new observation shows that the
system has a much shorter period and smaller semimajor axis. However,
our orbit yields roughly the same total mass, with large uncertainty.
The system appears to have executed nearly a full orbit since the
first speckle observations taken of it in 1985 by McAlister et al.
(1987). More data will be needed to confirm this orbital trajectory,
but if correct, the smaller period makes the system much more
attractive for future study. Hor2015b
 
 
REFERENCES
 
 
refcode metd author reference
Cve2008c orb - Cvetkovic, Z. 2008AJ....136.1746C
Cve2008c AJ 136, 1746, 2008
Hor2015b S j Horch, E.P., van Belle, G.T., Davidson, J.W., Jr., Ciastko, L.A., Everett, M.E., & 2015AJ....150..151H
Hor2015b Bjorkman, K.S.
Hor2015b AJ 150, 151, 2015
VlF2007 - van Leeuwen, F. 2007A&A...474..653V
VlF2007 A&A 474, 653, 2007
 
 
DISCOVERER
 
 
idgroup discov author
1 EGG Eggen, O.J.
36 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02186+4017 STF 245 AB 2001 46 294 11.4 7.26 8.03 F3V F3V NZD 021836.27+401643.7
02186+4017 STF 245 AB 2009 47 294 11.4 7.26 8.03 F3V F3V NZD 021836.27+401643.7
02186+4017 STF 245 AB 2010 49 293 11.1 7.26 8.03 F3V F3V NZD 021836.27+401643.7
02186+4017 STF 245 AB 2011 52 293 11.0 7.26 8.03 F3V F3V NZD 021836.27+401643.7
02186+4017 STF 245 AB 2015 53 294 11.0 7.26 8.03 F3V+F3V NZ 021836.27+401643.7
02186+4017 STF 245 AB 2020 58 293 11.3 7.26 8.03 F3V+F3V NT 021836.27+401643.7

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