WDS 01535+1918 STF 180 BC : NOTES
 
 
discov_num notes refcode
STF 180 gam Ari = 5 Ari = Mesarthim. According to R.G. Aitken, Robert Hooke A__1935f
noted this as a double in 1664. Hooke wrote: "I took notice that it Hoo1665
consisted of two small stars very near together; a like instance to
which I have not else met in all the heavens." HFC1928
A is a variable of the Alpha CVn type.
AB: H 3 9. MEv2010
Uniform disk diameter 0.336 +/- 0.019 mas,
Limb darkened diameter 0.346 +/- 0.019 mas,
Teff = 11000 +/- 1100 K based on LDD.
Radius is 1.97 +/- 0.12 \rsun. CIA2019a
BU 512 Primary is C component of STF 180. WDS designation changed from
01538+1918 and components labelled CD.
 
 
REFERENCES
 
 
refcode metd author reference
A__1935f - Aitken, R.G. 1935QB821.A3.......
A__1935f The Binary Stars, 1935
CIA2019a not j Gordon, K.D., Gies, D.R., Schaefer, G.H., Huber, D. & Ireland, M. 2019ApJ...873...91G
CIA2019a ApJ 869, 37, 2018
HFC1928 - Henroteau, F.C. 1928HDA.....6..299H
HFC1928 Handbuch der Astrophysik 6, part 2, 299, 1928 (no data)
Hoo1665 - Hooke, Robert ...................
Hoo1665 London R S Phil Trans 1665, p 150
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 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
01535+1918 STF 180 BC 2007 6 82 216.5 4.58 8.63 N 015331.77+191746.3
01535+1918 STF 180 BC 2008 7 83 215.7 4.58 8.63 N 015331.77+191746.3
01535+1918 STF 180 BC 2012 9 83 215.7 4.58 8.63 N 015331.77+191746.3
01535+1918 STF 180 BC 2015 11 83 214.0 4.58 8.63 B9V N 015331.77+191746.3

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