Monitoring requested on Cepheid variable 1320-02 W Vir
Abstract:
Longtime AAVSO member and colleague Dr. George Wallerstein, University of Washington, has requested our assistance in monitoring the Cepheid variable W Vir in support of his scheduled observing later this month at Apache Point Observatory in Sunspot, New Mexico. Visual and CCD observations are requested. For PEP observers who can reach magnitude 10 or fainter, PEP-V observations are also requested. Dr. Wallerstein aims to observe W Vir from minimum to well after maximum brightness.
Justification:
Visual/CCD observations are essential to know where on the light curve Dr. Wallerstein's observations fall. Observations are needed globally to properly cover the light curve as W Vir is a morning object. For PEP observers, V-band data is welcome to improve the mean magnitude of the observation.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| W Vir | 9.46 | CWA |
Cadence: Not Specified Precision: 100 |
Not Requested |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
V (Johnson)
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. George Wallerstein; Imported Campaign (Alert Notice #331)