observer: Makoto Iida (VSOLJ) instruments: 20-cm refl. + ST-6 unfiltered date & time: 1996 Feb. 12 11h 46m UT exposure: 120 s
SU Tau is located at the center. The object is estimated to be as faint as 17-th magnitude even with a red-sensitive CCD. The variable may be further fainter in the V-band, probably attaining the faintest ever observed minimum of this R CrB-type star.
(original image taken by D. Nogami , Ouda Station)
List of hydrogen-deficient stars
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