Star Names
The Two Nostrils (al-mankhiran)
The Two Nostrils are part of the Arabian megaconstellation of the Lion (al-asad). The Tip of the Nose (an-nathra) is a pair of dim stars that appear to have sneezed out a star cluster, which on account of its dimness appears as a fuzzy blotch in the sky. More explicitly, some Arabs saw the two stars of the Tip of the Nose as the Two Nostrils (al-mankhiran) and the star cluster alone as the Sneeze (an-nathra).
The Two Nostrils (al-mankhiran) as they appear in the west about 45 minutes before sunrise in early January. Sky simulations made with Stellarium.
Appearance
A pair of unremarkable stars close to a faint star cluster that appears as a patch of cloud in the night sky. The Two Nostrils do not include the star cluster itself.
Modern Identification
γ CNC (Asellus Borealis), white star, magnitude 4.7
δ CNC (Asellus Australis), yellow giant star, magnitude 3.9
Timing
Ibn Qutayba (d. 879 CE) reported that the Tip of the Nose was said to rise on the morning of July 18 and set on the morning of January 18. On account of the precession of the equinoxes, today we can expect to observe the Two Nostrils setting in early February and rising in mid-August, as seen from the latitude of Tucson. (See How to Observe on the About page for more on this topic.)
Rain Stars
The Two Nostrils do not figure among the rain stars, but in the calendars of Qushayr and Qays, the morning setting of the Tip of the Nose occurs during the cold winter season called ash-shita’.
Lunar Stations
The Two Nostrils are not one of the lunar stations, but in early listings of the lunar stations, the Tip of the Nose is the tenth station of the year. This was later changed to the eighth lunar station after the stations were adjusted to begin with the vernal equinox. The stars of the Tip of the Nose roughly match the Hindu nakshatra called Pushya.
Related Stars and Celestial Complexes
The Two Nostrils are part of the Lion (al-asad, الأسد) folkloric celestial complex, which extends from the Two Forearms (adh-dhira’an, الذراعان) to the Two Shanks (as-saqan, الساقان).
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