1815+50 DV Draconis - Rare outburst
Abstract:
The possible WZ Sge-type cataclysmic variable is in outburst, according to observations reported by Tim Parson, Forest Lake, MN, and Patrick Schmeer, Bischmisheim, Germany. Schmeer reports this observation is only the second recorded outburst of DV Dra; its first one was a superoutburst in June 1984, when the star reached photographic magnitude 15.1 (IBVS No. 3626). No outbursts are recorded in the AAVSO International Database since DV Dra was added in 1994.
Justification:
DV Dra is faint and near the sun, so it is a difficult target for visual observers, however, visual observations are welcomed. CCD observers are urged to conduct V-band time series photometry, keeping the runs as long as possible, and the exposures as short as possible with S/N ratio = 20 or better.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| DV Dra | 15.00 | UGWZ |
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: Tim Parson; Imported Campaign (Alert Notice #329)