Alert Notice 470: Symbiotic variable V4018 Sgr in outburst
Abstract:
The symbiotic variable V4018 Sgr is undergoing an outburst, confirmed by observations and spectroscopy. The system has brightened to V magnitude 11.07 as of Sep. 17, 2012. Historical data shows similar behavior. Photometry and spectroscopy are requested during the outburst.
Justification:
BVRI photometry and visual observations requested throughout the current outburst. Spectroscopy is also encouraged.
Requested Data Types:
Photometry, Spectroscopy
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| V4018 Sgr | 9.50 | ZAND+ELL+R |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
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: Ulisse Munari; Imported Campaign (Alert Notice #470)