Activity of comet 7P/Pons-Winnecke during the 2021 apparition

Comet 7P/Pons-Winnecke was observed from the Calar Alto Observatory (Spain) for 4 mon during the 2021 inbound apparition. Broad-band visible images were taken between 1.71 and 1.25 au pre-perihelion, while long-slit spectrophotometric data were taken at similar to 1.25 au pre-perihelion. This data set has been complemented with three r-Sloan images observed from Zwicky Transient Facility (ZTF) to model the physical properties and loss rate of the dust with a forward Monte Carlo dust tail code. The model fits the observed isophotes well for most observations. The peak dust production rate was measured at 83 kg s(-1), 15 days after perihelion. The particle terminal speed ranges from 3 m s(-1) for 0.1 m particles to 23 m s(-1) for 5 mu m particles. Regarding the gas production from spectra, CN, and C-2 show asymmetric emission between the Sunward and anti-Sunward directions beyond the data uncertainties and error propagation, while a clear asymmetry for C-3 cannot be definitively claimed. Average production rates for CN, C-2, and C-3 near 2021 perihelion are 1.15 x10(24), 2.32x10(24), and 1.69x10(23) s(-1), respectively. The dust-to-gas mass ratio value is estimated to be around 2, suggesting a dust-rich composition. Based on the gas composition and the Af rho value, we classify 7P/Pons-Winnecke as having a typical composition for Jupiter Family comets, with some C-3 depletion. Given the limited previous knowledge, our work contributes to expanding the understanding of the activity and characteristics of 7P/Pons-Winnecke.