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V725 Tau photometry needed urgently

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weo
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V725 Tau photometry needed urgently

AAVSO Alert Notice 562 announces an urgent observing campaign on V725 Tau. Photometry is needed now to provide essential optical coverage before, during, and after the periastron passage of the high-mass transient X-ray system of which V725 Tau is a component. Periastron passage is NOVEMBER 16. Please see the notice for instructions and information on the duration of this campaign.

Many thanks, and Good observing,

Elizabeth Waagen, AAVSO HQ

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484