Observing campaign on 5 variables in Cygnus
Active Dates: Oct. 1, 2015 – Dec. 31, 2015
Abstract:
Dr. George Wallerstein (University of Washington) has requested AAVSO assistance in monitoring 5 variable stars in Cygnus now through December 2015. He is working to complete the radial velocity curves for these stars, and needs optical light curves for correlation with the spectra he will be obtaining.
Justification:
"I need to know the time of max or min so I can assign a phase to each spectrum. Most classical cepheids are quite regular so once a time of max or min can be established I can derive the phase of each observation even if my obs are several cycles away from the established max or min. MZ Cyg is a type II cepheid and they are less regular than their type I cousins."
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SZ Cyg | 8.92 | DCEP |
Cadence: Not Specified Precision: 100 |
Not Requested |
| X Cyg | 5.85 | DCEP |
Cadence: Not Specified Precision: 100 |
Not Requested |
| VX Cyg | 9.54 | DCEP |
Cadence: Not Specified Precision: 100 |
Not Requested |
| TX Cyg | 8.59 | DCEP |
Cadence: Not Specified Precision: 100 |
Not Requested |
| MZ Cyg | 10.95 | RVA |
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. George Wallerstein; Imported Campaign (Alert Notice #529)