Alert Notice 760: GM Aur and V1204 Tau to be observed with HST

Active Dates: Dec. 2, 2021 – Jan. 3, 2022


Abstract:

Observations of GM Aur are complete. The HST observations of V1204 Tau did not take place and will be rescheduled for sometime over the next three months.

Justification:

AAVSO observers' assistance is requested in monitoring these pre-main sequence targets before, during, and after the HST observations. A positive V observation is crucial 24 hours before the scheduled start time to allow the HST team to make a go/nogo decision.

Requested Data Types:

Photometry



Targets
Name Magnitude Variability Type Photometry Notes Spectroscopy Notes
GM Aur 11.80 CTTS/ROT

Cadence: Not Specified

Precision: 100

Not Requested
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 (Stony Brook University); Imported Campaign (Alert Notice #760)