Lunar mansion
Wěi
Tail
An almanac describes traditional day-types. It cannot decide health, money, law, marriage or children. Burial, marriage and medical items on these pages are what a book states, never advice.
In the classical sources
尾近中宫故為虎之本象
尾 lies by the center, hence the tiger is its true image.
協紀辨方書 卷一
About this entry
Two mansions sit in the 寅 palace, and 尾, the Tail, lies nearer the center. That is why 協紀辨方書 卷一 gives it the tiger, the animal of 寅 itself, with 箕 taking the leopard.
Fire is its group in 星厯考原 卷五, shared with 室, 觜 and 翼, and the modern correspondence makes it Tuesday. 心 comes before and 箕 after. Neither book says more about this mansion as a day.
Where this text comes from
The Chinese follows the Wikisource typed text of the Siku copy, under its CC BY-SA terms. Statements about the calculator describe its own rules, and modern practice is labeled as modern.
The English here is our own plain wording. Lists keep the items of the source.