Alert Notice 797: Monitoring requested for V730 Cep

October 28, 2022

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AAVSO Young Stellar Object (YSO) Section leader Michael Poxon (Great Plumstead, Norfolk, UK) requests coverage of the YSO V730 Cep beginning immediately and continuing until further notice.

He writes: "Following a series of deeper than usual fades on the Herbig B star V730 Cephei (most recently to magnitude 16.1 visual, 16.3B) it would be good to have as 'wide a wavelength as possible' coverage of this object at all stages of its behaviour, especially at times leading up to, as well as just after, any fades that take place. Fades are typically quite sudden and are becoming increasingly deep.

"In view of the above, observations using a variety of filters over a period of several fades, as well as purely visual observations, are needed to form a more complete picture of the star and its environment."

The most recent observations in the AAVSO International Database showed V730 Cep at visual magnitudes 14.6 on 2022 October 24.936 UT (G. Poyner, Birmingham, UK) and 15.3 on 2022 October 28.7354 UT (M. Poxon, Great Plumstead, Norfolk, UK).

Coordinates (2000):  RA 22 54 03.78  Dec. +58 54 01.6  (from VSX entry for V730 Cep)

Charts: Finder charts with comparison stars for V730 Cep may be created using the AAVSO Variable Star Plotter (VSP).

Submit observations: Please submit observations to the AAVSO International Database using the name V730 CEP.

This AAVSO Alert Notice was compiled by Elizabeth O. Waagen using material provided by Michael Poxon.


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