Calculate the 28 mansions of Chinese astronomy

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