SIMBAD references

2002A&A...391..659F - Astronomy and Astrophysics, volume 391659-663 (2002/8-4)

EK Draconis: Long-term photometry on Sonneberg Sky-Patrol plates.

FROEHLICH H.-E., TSCHAEPE R., RUEDIGER G. and STRASSMEIER K.G.

Abstract (from CDS):

We performed long-term photometry of the young solar analog EK Draconis (HD 129333) using 1030 blue-sensitive Sky-Patrol plates taken at Sonneberg Observatory from 1958 onwards. A secular dimming of 0.0057±0.0008mag/y beginning around 1975 was found. Hence, the recent trend first observed with Automatic Photoelectric Telescopes (APTs) is confirmed and traced back to the mid-seventies.

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Journal keyword(s): stars: activity - stars: individual: HD 129333 (EK Dra) - stars: late-type - stars: rotation - stars: variables: other

Simbad objects: 9

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