Alert Notice 141: Supernova 1991T in NGC 4527 AND Nova Herculis 1991 AND Nova Centauri 1991

Active Dates: April 17, 1991 – April 17, 1991


Abstract:

Observations and discoveries of Supernova 1991T in NGC 4527, Nova Herculis 1991, and Nova Centauri 1991. Stephen Knight discovered Supernova 1991T visually in NGC 4527. Independent confirmations and recent observations are provided. Observations of Nova Herculis and Nova Centauri are also included.

Justification:

Monitoring the brightness and behavior of Supernova 1991T, Nova Herculis 1991, and Nova Centauri 1991 facilitate understanding their characteristics and underlying physical processes.

Requested Data Types:

Photometry, Spectroscopy



Targets
Name Magnitude Variability Type Photometry Notes Spectroscopy Notes
Nova SMC 01 11.25 NA

Cadence: Not Specified

Precision: 100

Cadence: Not Specified

Resolution: 250

Desired SNR: 100

SN 1991T 13.00 SN Ia-pec

Cadence: Not Specified

Precision: 100

Cadence: Not Specified

Resolution: 250

Desired SNR: 100


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: Stephen Knight; Imported Campaign (Alert Notice #141)