Superoutburst of 0203+56A UV Persei AND Superoutburst of 0803+62 SU Ursae Majoris AND Supernova in NGC 4374 [SN 1991bg]
Active Dates: Dec. 24, 1991 – Dec. 29, 1991
Abstract:
AAVSO Alert Notice 151 reports on the superoutbursts of 0203+56A UV Persei, 0803+62 SU Ursae Majoris, and the supernova in NGC 4374 (SN 1991bg). Observations and details from various astronomers are provided.
Justification:
Monitor superoutbursts of UV Persei and SU Ursae Majoris and the supernova in NGC 4374. Report observations using the provided AAVSO charts.
Requested Data Types:
Photometry, Spectroscopy
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SN 1991bg | 14.00 | SN Ia-pec |
Cadence: Not Specified Precision: 100 |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
Spectroscopy Lines:
He I (5876.0 Å), H-alpha (6563.0 Å), Calcium Triplet (8542.0 Å)
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: Elizabeth O. Waagen; Imported Campaign (Alert Notice #151)