Supernova 1991X in NGC 4902 AND Monitoring of 1910-33 RY Sagittarii
Active Dates: May 6, 1991 – May 31, 1991
Abstract:
The AAVSO requests observations of the Supernova 1991X discovered in NGC 4902 by Robert O. Evans. Observations are also requested for RY Sgr during its return to maximum light.
Justification:
To report observations of the Supernova 1991X and monitor the light curve of RY Sgr, particularly for IUE observations.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SN 1991X | 13.70 | SN Ia |
Cadence: Not Specified Precision: 100 |
Not Requested |
| RY Sgr | 5.80 | RCB |
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: Robert O. Evans; Imported Campaign (Alert Notice #144)