Observations were obtained with a Celestron C14 EdgeHD telescope at f/7 and an ASI183MM Pro camera equipped with Baader Bessel B, V, R and I photometric filters.
Photometric calibration was performed using field stars from the Local Group Galaxies Survey (Massey et al. 2006, AJ, 131, 2478), providing Johnson B, V and Cousins Rc, Ic reference magnitudes. No instrumental colour-term transformation or atmospheric-extinction correction was applied.
The observations in each filter were obtained sequentially; consequently, short-term brightness variations and strong nova emission lines may influence the reported broadband colour indices.
The photometric observations and colour indices are provided in an attached table (see below – M31mag_20260923.txt).
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2026aaom | 00:42:50.387 | +41:18:57.22 | Nova | 0 | M31 | 00:42:50.387 | +41:18:57.22 | Nova |
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