WDS 02193-0259 STG 1 AD : NOTES
 
 
discov_num notes refcode
JOY 1 Aa,Ab: The primary is omi Cet = VZ Cet = 68 Cet = Mira , prototype of
the Mira-type variables. "Orbits" have been computed for the visual
pair, but are most likely false. B has in the past been identified as a
Cepheid, VZ Cet; however, it appears that the component seen as
variable is the Joy component, recently determined to be a White Dwarf. Skl2010
Recent papers (in particular 1995 PhD thesis by Harold L. Chambers II)
suggest that the visible companion is not the star itself, but the
accretion disc around it (material captured from Mira's stellar wind).
Rapid fluctuations of brightness are described by Warner (1972 MNRAS
159, 95).
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Aa,Ab: Pair seen but not measured. Cou1958c
Aa,Ab: Additional notes may be found in Couteau (1963). Cou1963a
H 6 1 H VI 1. C is BD-03@355.
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Cou1958c Ma j Couteau, P. 1958JO.....41...81C
Cou1958c +Mc J. Obs. 41, 81-90, 1958
Cou1963a Ma j Couteau, P. 1963JO.....46..155C
Cou1963a +Mc J. Obs. 46, 155, 1963
Skl2010 - Sololoski, J.L. & Bildsten, L. 2010ApJ...723.1188S
Skl2010 ApJ 723, 1188, 2010
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 JOY Joy, A.H. & Humason, M.L.
191 STG Struve, G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02193-0259 STG 1 AD 1921 2 319 148.5 6.65 9.30 021920.78-025839.5
02193-0259 STG 1 AD 1995 4 322 159.0 6.65 13.39 N 021920.78-025839.5
02193-0259 STG 1 AD 1999 5 323 161.8 6.65 13.39 N 021920.78-025839.5
02193-0259 STG 1 AD 2017 6 324 166.6 6.64 13.66 M7IIIe NU 021920.78-025839.5
02193-0259 STG 1 AD 2019 8 324 166.9 6.64 13.66 M7IIIe NU 021920.78-025839.5

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