请听天文课讲座的部分内容。
天暗了下来，从山岭清爽的空气里，星辰闪耀出了美妙的光辉，父亲指着星座给我看，或是给我上天文课。
As dusk came on the stars blazed out wonderfully through the clear mountain atmosphere, and my father showed me the constellations or treated me to an astronomical discourse.
问题在于，瑞士的日内瓦天文台的天文学家 Francesco Pepe 之后的研究却连这课行星是否存在都无法确定。
The problem is, a follow-up study failed to confirm that this planet even exists, astronomer Francesco Pepe at the Geneva Observatory in Switzerland found.
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