Program: GN-2022A-FT-215

The Euclid space telescope will survey 15000 square degrees of extragalactic sky. Using weak gravitational lensing and galaxy clustering as cosmological probes, Euclid will address fundamental questions about the accelerated expansion of the Universe, dark matter, and the validity of General Relativity on cosmological scales. The wavelength calibration of Euclid's near-infrared spectrometer is based on several compact planetary nebulae across the sky. The aim of this proposal is to obtain the near-infrared spectrum with accurate wavelengths for the only suitable, compact PN in the northern galactic cap.