Calculate the 28 mansions of Chinese astronomy

DateDay of week->Twenty-eight mansionsTranslation
5/1/2026Fri.  kou (こう) Neck
5/2/2026Sat.  tei (てい) Root
5/3/2026Sun.  bou (ぼう) Room
5/4/2026Mon.  shin (しん) Heart
5/5/2026Tues.  bi (び) Tail
5/6/2026Wed.  ki (き) Winnowing Basket
5/7/2026Thurs.  to (と) Dipper
5/8/2026Fri.  gyuu (ぎゅう) Ox
5/9/2026Sat.  jo (じょ) Girl
5/10/2026Sun.  kyo (きょ) Emptiness
5/11/2026Mon.  ki (き) Rooftop
5/12/2026Tues.  shitsu (しつ) Encampment
5/13/2026Wed.  heki (へき) Wall
5/14/2026Thurs.  kei (けい) Legs
5/15/2026Fri.  rou (ろう) Bond
5/16/2026Sat.  i (い) Stomach
5/17/2026Sun.  bou (ぼう) Hairy Head
5/18/2026Mon.  hitsu (ひつ) Net
5/19/2026Tues.  shi (し) Turtle Beak
5/20/2026Wed.  shin (しん) Three Stars
5/21/2026Thurs.  sei (せい) Well
5/22/2026Fri.  ki (き) Ghost
5/23/2026Sat.  ryuu (りゅう) Willow
5/24/2026Sun.  sei (せい) Star
5/25/2026Mon.  chou (ちょう) Extended Net
5/26/2026Tues.  yoku (よく) Wings
5/27/2026Wed.  shin (しん) Chariot
5/28/2026Thurs.  kaku (かく) Horn
5/29/2026Fri.  kou (こう) Neck
5/30/2026Sat.  tei (てい) Root
5/31/2026Sun.  bou (ぼう) Room