1140+48 Supernova 1998S in NGC 3877 AND Fading of 1921+50 CH Cygni
Abstract:
Supernova 1998S in NGC 3877 and the fading of CH Cygni are being investigated. The supernova was discovered by Zhou Wan and the fading variable CH Cyg is being monitored.
Justification:
Investigate supernova 1998S in NGC 3877 discovered by Zhou Wan and monitor the fading of symbiotic variable CH Cygni to understand their behavior.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| SN 1998S | 15.20 | SN II |
Cadence: Not Specified Precision: 100 |
Not Requested |
| CH Cyg | 5.60 | ZAND+SR |
Cadence: Not Specified Precision: 100 |
Not Requested |
Spectroscopy Lines:
H-alpha (6563.0 Å), Calcium Triplet (8542.0 Å)
Photometry Filters:
B (Johnson), 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: W.-D. Li; Imported Campaign (Alert Notice #244)