ASASSN-26no is a new Galactic classical nova in Musca
ATel #17813; J. Strader, L. Chomiuk, A. Crossland (Michigan St), K. Z. Stanek, C. S. Kochanek (OSU), B. J. Shappee (Hawaii)
on 26 May 2026; 02:43 UT
Credential Certification: Jay Strader (strader@pa.msu.edu)
ASASSN-26no was discovered by the ASAS-SN survey on 2026 May 24 (UT 00:43) with g=8.6, however, it is recovered in ASAS-SN from 2026 May 11 onward at g < 10.
We obtained spectroscopy of the source with the Goodman Spectrograph on the SOAR 4.1-m telescope on 2026 May 25 (UT 23:23) through AEON. The spectrum has a flat continuum (suggesting only modest reddening) with strong emission lines of H (Hbeta FWHM about 1400 km/s), He I, and Fe II. Most of the emission lines show strong P Cygni profiles extending to about -1000 km/s from rest. The spectrum and light curve evolution are consistent with a slow classical nova.
Preliminary ASAS-SN non-image subtracted light curve
