**Table 3:** Abundances [X/H] for the early-B stars in NGC 2244 (2nd column) compared to the inner-disk early-B abundances (3rd column). Also, stellar abundances for CNO elements could be compared to abundances derived for Orion Nebula (4th column), and with solar abundances (5th column).
Element	NGC 2244¹	B dwarfs²	Orion³	Sun⁴
C	8.23 $\pm$ 0.06	8.27 $\pm$ 0.12	8.42 $\pm$ 0.02	8.41 $\pm$ 0.03
N	7.53 $\pm$ 0.09	7.62 $\pm$ 0.12	7.65 $\pm$ 0.09	7.80 $\pm$ 0.04
O	8.56 $\pm$ 0.03	8.57 $\pm$ 0.06	8.51 $\pm$ 0.03	8.66 $\pm$ 0 .03
Mg	7.45 $\pm$ 0.12	7.48 $\pm$ 0.18	-	7.54 $\pm$ 0.06
Si	7.26 $\pm$ 0.02	7.25 $\pm$ 0.23	-	7.54 $\pm$ 0.05
Al	6.17 $\pm$ 0.09	6.13 $\pm$ 0.19	-	6.47 $\pm$ 0.07

References: [1] This work and Vrancken et al. (1997);
[2] Daflon et al. (2004a);
[3] Esteban et al. (2004, 2005);
[4] Daflon et al. (2004a, and references therein).

Source LaTeX | All tables | In the text

	1 Introduction
	2 Method
	3 Component spectra
	4 Quantitative abundance analysis
	5 Discussion and conclusions
	References