AAVSO Alert Notice 438 - Supernova 2011by in NGC 3972 = PSN J11554556+5519338
Active Dates: April 26, 2011 – April 27, 2011
Abstract:
Supernova 2011by, discovered on April 26, 2011, in NGC 3972 by Zhangwei Jin and Xing Gao. It is a type-Ia supernova approximately 10 days before maximum brightness.
Justification:
The early phase detection of Supernova 2011by (type-Ia) is crucial for understanding the early behavior of such supernovae.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SN 2011by | None | SN Ia |
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: Zhangwei Jin, Ningbo, Zhejiang, China, and Xing Gao, Urumqi, Xinjiang, China; Imported Campaign (Alert Notice #438)