Table 3: Source detections in the ROSAT HRI observation of NGC 2903 with a maximum likelihood threshold of 14 (5$\sigma $).
No. RA (2000) Dec (2000) Existence Count rate (HRI)a No. Identification
      likelihood [10-3 cts s-1] (PSPC)  
1 9$^{\rm h}$ 32$^{\rm m}$ 05 $.\!\!^{\rm s}$4 +21$^\circ $32$^\prime$36 $^{\prime\prime}$ 23 $0.8\pm0.2$ 9 H II region in NGC 2903
2 9$^{\rm h}$ 33$^{\rm m}$ 22 $.\!\!^{\rm s}$2 +21$^\circ $32$^\prime$07 $^{\prime\prime}$ 18 $3.3\pm0.7$ 10 2E 0930.5+2145
3 9$^{\rm h}$ 32$^{\rm m}$ 10 $.\!\!^{\rm s}$1 +21$^\circ $30$^\prime$07 $^{\prime\prime}$ 180 $7.8\pm0.6$ 11 NGC 2903
4 9$^{\rm h}$ 31$^{\rm m}$ 48 $.\!\!^{\rm s}$7 +21$^\circ $24$^\prime$43 $^{\prime\prime}$ 20 $1.0\pm0.3$ 14  

a Background subtracted.

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