Supernova 2001el in NGC 1448 (Horologium)
Active Dates: Sept. 20, 2001 – Sept. 20, 2001
Abstract:
We have been informed by the Central Bureau for Astronomical Telegrams (IAU Circular 7720) and by Liebert A. G. (Berto) Monard, Pretoria, South Africa, that Monard visually discovered an apparent supernova in NGC 1448 on Sep. 17.064 UT at visual magnitude 14.5, using a 32-cm Newtonian telescope. Additional observations by Monard include Aug. 25.96 UT, <14.6; Sep. 17.108, 14.5; 17.930, 14.3; 20.09, 13.8; 20.11, 13.7 (brightness increase from previous estimate may be due to improved dark-adaptation); Monard's comparison sequence was based on UCAC1 and USNO-A2.0 B and R data.
Justification:
To observe and monitor Supernova 2001el in NGC 1448 for its brightness changes over time.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SN 2001el | 14.50 | SN Ia |
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: Janet A. Mattei; Imported Campaign (Alert Notice #290)