V1204 Tau observations needed now for HST coverage

Active Dates: Jan. 14, 2022 – Jan. 19, 2022


Abstract:

HST observations of V1204 Tau have been scheduled for 2022 January 18 04:30-11:40 UT. The target, a pre-main sequence T Tauri star, is part of the ULLYSES/ODYSSEUS campaign. Dr. Walter requests AAVSO observers to monitor this star before, during, and after the HST observations.

Justification:

A positive V observation is crucial 24 hours before the scheduled start time to allow the HST team to make a go/nogo decision. Additionally, multiple nightly observations will help reconstruct the light curve and establish the photometric phase, as the rotational period is 3.08 days.

Requested Data Types:

Photometry



Targets
Name Magnitude Variability Type Photometry Notes Spectroscopy Notes
V1204 Tau 10.64 TTS/ROT

Cadence: Not Specified

Precision: 100

Not Requested

Spectroscopy Lines:

No spectroscopy lines provided

Photometry Filters:

No photometry filters provided

Comparison Stars:

No comparison stars provided


Co-Authorship

Observers are not eligible for co-authorship.

Additional Observer Input:

Not provided

Additional Submission Location:

Not provided


Forum URL

N/A


Notes:

Principal Investigator: Dr. Frederick Walter; Imported Campaign (Alert Notice #766)