B-band photometry of TYC 2597-735-1 urgently needed
Active Dates: Nov. 19, 2019 – Dec. 19, 2019
Abstract:
Dr. Keri Hoadley (California Institute of Technology) requests AAVSO observers' assistance in obtaining B-band images of the star TYC 2597-735-1 over the next few weeks. This campaign is a continuation of a long-term study to understand the secular dimming of TYC 2597-735-1. Modern B-filter photometry is needed to complete the analysis, as the last data available are from 1989.
Justification:
We have a suspicion that TYC 2597-735-1 is secularly dimming very slowly, and modern B-filter photometry is needed to distinguish between two possible light curve dimming solutions.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| TYC 2597-735-1 | 11.15 | CST: |
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. Keri Hoadley; Imported Campaign (Alert Notice #686)