1749-31 Nova Scorpii 1998 [V1142 Sco]
Active Dates: Oct. 21, 1998 – Oct. 23, 1998
Abstract:
We have been informed by William Liller, Vina del Mar, Chile, and by the Central Bureau for Astronomical Telegrams (IAU Circular 7034) of Liller's photographic discovery, using the PROBLICOM method, of a probable nova in Scorpius on October 21.0266 UT at magnitude 6.9, using Tech Pan film and an 85-mm camera lens with orange filter. The nova appeared on two other films taken by Liller on October 21.0293 and 21.0389 UT. It does not appear down to magnitude 11.5 on photographs taken by Liller on October 17.010.
Justification:
Please use this chart to observe 1749-31 N Sco 98, and report your observations to AAVSO Headquarters, making sure to indicate which comparison stars you used to make your magnitude estimates.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| V1142 Sco | 6.90 | NA |
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: William Liller; Imported Campaign (Alert Notice #252)