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The atmospheric parameters and chemical abundances of two neglected A-typestars, 28 Peg and HD 202240, were derived using high resolution spectraobtained at the TUBITAK National Observatory. We determined the photosphericabundances of eleven elements for 28 Peg and twenty for HD 202240, usingequivalent-width measurement and spectral synthesis methods. Their abundancepatterns are in good agreement with those of chemically normal A-type starshaving similar atmospheric parameters. We pinpoint the position of these starson the H-R diagram and estimate their masses and ages as; $2.60\pm0.10\M_\odot$ and $650\pm50\ Myr$ for 28 Peg and $4.50\pm0.09\ M_\odot$ and$150\pm10\ Myr$ for HD 202240. To compare our abundance determinations withthose of stars having similar ages and atmospheric parameters, we selectmembers of open clusters. We notice that our target stars exhibit similarabundance patterns with these members.

Detailed photospheric abundances of 28 Peg and HD 202240