TW Hya being observed by HST now - observations needed

Active Dates: March 31, 2022 – April 9, 2022


Abstract:

The AAVSO is calling for observations of the young stellar object (YSO) TW Hya, synchronized with HST observations to piece together the behavior of the star.

Justification:

It is important to get single BVRI sequences each night, but longer sets of data would be useful if they can be obtained simultaneously with the HST observations. Moreover, having a positive V observation 24 hours before the scheduled HST time is extremely important.

Requested Data Types:

Photometry



Targets
Name Magnitude Variability Type Photometry Notes Spectroscopy Notes
TW Hya 10.60 CTTS/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 #774)