In earlier works, we had shown the actual possibility that the Nabataeans had used the Equinox, or an astronomical event equivalent to this, as an important milestone to control the calendar, stablish festivals and perform pilgrimages to important sacred sites. In this paper we present evidence that this was indeed the case. In a research carried out in Petra in March 2018, equinoctial phenomena were observed and tested at the Urn Tomb, the Obelisks at Jabal Madbah and the sacred area of Al Madras, showing that the actual astronomical Equinox could be observed together with other related phenomena such as the midday between the solstices. Besides, this campaign was used to obtain data in various isolated places in Petra seldom visited by the general public such as the Obodas Chapel, Sidd al Ma’jin, Parcak’s Platform, or the sacred areas on top of Umm al Biyara. These little known monumental sites have also provided interesting results that are described and discussed in this paper.

中文翻译：

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佩特拉的春分：纳巴泰首都的土地和天空景观

在早期的作品中，我们已经展示了纳巴泰人使用春分或与此相当的天文事件作为控制日历、建立节日和前往重要圣地朝圣的重要里程碑的实际可能性。在本文中，我们提供了证据表明情况确实如此。在 2018 年 3 月在佩特拉进行的一项研究中，在瓮墓、Jabal Madbah 的方尖碑和 Al Madras 圣地观察和测试了分点现象，表明实际的天文春分可以与其他相关现象一起观察到，例如作为至日之间的正午。此外，该活动还用于在佩特拉的各个偏远地区获取数据，例如 Obodas 教堂、Sidd al Ma'jin、Parcak's Platform、或 Umm al Biyara 山顶的圣地。这些鲜为人知的纪念性遗址也提供了本文中描述和讨论的有趣结果。