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ABSTRACT FULL moon occurs on Sept. 7d. C9h. 59m., U.T., and new moon on Sept. 22d 12h. 21m. The following conjunctions with the moon take place: Sept. 3d, 04h., Jupiter 5° N. ; Sept. 18d.
22h., Mars 4° S. ; Sept. 21d. 02h., Saturn 2° S. ; Sept. 23d. 17h., Mercury 4° S.; Sept. 25d. 10h., Venus 1° N.; Sept. 30d. 10h., Jupiter 5° N. Mercury is an evening star during the first
part of the month and later becomes a morning star, but is too close to the sun for favourable observation. Venus sets about an hour after the sun and can be seen in the western sky, stellar
magnitude - 3.5, the visible portion of the illuminated disk being between 0.790 and 0.707. Mars rises just after Ih. during the month and can be seen for a few hours before sunrise.
Jupiter is visible in the earlier portion of the night, setting at Ih., 0h. and 23h., approximately, at the beginning, middle and end of the month, respectively ; the planet is stationary on
Sept. 17. Saturn is in conjunction with the sun on Sept. 2 and cannot be observed. Occultations of stars brighter than magnitude 6 are as follows : Sept. 14d. 00h. 35.1m., 36 Tauri. (R) ;
Sept. 16d. 00h. 05.3m., 136 Tauri. (R) ; Sept, 18d. 04h. 15.1m., ω Cane. (R). R refers to reappearance and the latitude of Greenwich is assumed. Autumnal equinox occurs on Sept. 23d. 09h.
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support RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE The Night Sky in September. _Nature_ 164, 345 (1949). https://doi.org/10.1038/164345e0 Download
citation * Issue Date: 27 August 1949 * DOI: https://doi.org/10.1038/164345e0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable
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