Alert Notice 386: Low state of VY Scl
Active Dates: Sept. 20, 2008 – Sept. 20, 2008
Abstract:
The cataclysmic variable VY Scl appears to have recently entered a low state according to observations recently submitted to the AAVSO. Javier Temprano reports positive detections of VY Scl at CV=17.46 on JD 2454730.46181 (2008 Sept 20.9618) and at CV=18.23 on JD 2454730.572 (2008 Sept 21.072). All other recent AAVSO and ASAS-3 (Pojmanski, G. 2002, Acta Astronomica 52 , 397) observations indicate that VY Scl is below detectability limits. This is the first time VY Scl has been detected in a deep minimum in many years, comparable to the deep minimum observed by Cropper and Warner in 1983 (IAUC 3877).
Justification:
Observations of VY Scl, both visual and instrumental, are urgently requested beginning immediately, and continuing through this current episode.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| VY Scl | 11.80 | NL/VY |
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: N/A; Imported Campaign (Alert Notice #386)