**CORRECTION**
Yesterday’s Halacha had a typographical error in 2 places in the summary. The word "cloud" was mistakenly displayed instead of the word "moon." The summary paragraph at tend should have read:
Summary: One should not recite Birkat Ha’lebana unless the MOON is completely exposed; even if the MOON is visible but covered by a thin film of cloud, the Beracha should not be said. If the moon is visible but covered by a thin cloud on the final night when the Beracha can be said, it should be recited from the text of a Gemara (in Masechet Sanhedrin). One may begin reciting the Beracha when the moon is clear even if he sees a cloud that will cover the moon before he completes the Beracha.
---TODAY’s HALACHA---
If a person forgot to recite Arbit on the night of Rosh Hodesh, then, as is always the case when one forgets to recite Arbit, he must recite an extra Amida the following morning at Shaharit. Of course, he includes Ya’aleh Ve’yabo in both Amida prayers. The question arises, however, as to the proper sequence he should follow in light of the fact that the Musaf prayer must also be recited on Rosh Hodesh. Should the person in this case recite the makeup prayer for Arbit immediately after the Shaharit prayer, and only then proceed to Musaf, or should he maintain the normal sequence of Shaharit followed by Musaf, and recite the makeup prayer after Musaf?
The work Ner Le’siyon (p. 170) compares this case to the situation of somebody who forgot to recite Shaharit and Musaf on the morning of Rosh Hodesh. In such a case, one must recite an extra prayer at Minha to make up for the missed Shaharit prayer, and must also recite Musaf (which can be recited until sundown). The Kaf Ha’haim (Rav Yaakov Haim Sofer, Baghdad-Israel, 1870-1939), as well as the Ben Ish Hai (Rav Yosef Haim of Baghdad, 1833-1909) in Parashat Mishpatim (Shana Rishona, 16), rule that a person in such a case should maintain the ordinary sequence, reciting Musaf and then Minha, and only then recite the makeup prayer for Shaharit. By the same token, then, if one missed Arbit, he should recite the makeup prayer after Musaf, in order not to disrupt the normal sequence of Shaharit followed by Musaf. Of course, if one mistakenly recited the makeup prayer immediately after Shaharit, before Musaf, he has fulfilled his obligation, but it is preferable to first recite Musaf before the makeup prayer for Arbit.
Summary: If one forgot to recite Arbit on the night of Rosh Hodesh, and must therefore recite an extra Amida prayer the next morning, he should recite the makeup prayer after Musaf, rather than immediately after Shaharit. Of course, he includes Ya’aleh Ve’yabo in both Amida prayers.
