This catalogue contains results of photometric and spectral observations of eleven Galactic Wolf–Rayet stars of the WN sequence, obtained in 2021–2022 at the Fesenkov Astrophysical Institute (FAI), Kazakhstan.

The observing programme included moderately bright stars (mostly fainter than V = 10m) observed in B, V, and Rc photometric filters, as well as medium-resolution spectra for measurement of absolute fluxes in prominent emission lines.

For each object, the table provides:

• identifiers (WR catalogue number, alternative name),
• spectral subtype,
• equatorial coordinates (J2000),
• literature photometry (B_cat, V_cat) and reference codes,
• date of observation and Julian Date (JD−2400000),
• measured B, V, Rc magnitudes with their errors,

• and absolute fluxes and equivalent widths for a set of emission lines, including

  He II λ4540, N III λ4619, He II λ4685, He II + H I λ4859, N V λ4945, He II λ5411, He II λ6560, He II λ6583, and N IV λ7109.

These data were first published in the paper “Photometric and Spectral Studies of a Group of Galactic Wolf–Rayet Stars. I. WN Sequence”, Astrophysics, Vol. 66, No. 4 (November 2023), by L.N. Kondratyeva, I.V. Reva, E.K. Denisyuk, S.A. Shomshekova, A.K. Aimanova. DOI: 10.54503/0002-3051-2023.76.4-521

• Massive stars
• Wolf-Rayet stars
• Spectroscopy
• BV photometry
• CCD photometry
• Johnson photometry
• Photometry
• Stellar photometry
• Variable stars