Borana calendar

Source: Wikipedia, the free encyclopedia.

The Borana calendar is a

calendar system.[2][3]

Structure

A lunar-stellar calendar, the

Borana Calendar relies on astronomical observations of the moon in conjunction with seven particular stars or constellations. Borana months (Stars/Lunar Phases) are Bittottessa (Triangulum), Camsa (Pleiades), Bufa (Aldebaran), Waxabajjii (Bellatrix), Obora Gudda (Central Orion-Saiph), Obora Dikka (Sirius), Birra (full moon), Cikawa (gibbous moon), Sadasaa (quarter moon), Abrasa (large crescent), Ammaji (medium crescent), and Gurrandala (small crescent).[2][3]

There are 27 names of days of a month. Hence, first two or three days are used twice at the beginning and end of a month.

Names of days of a month
1. Bita Kara 10. Gidada 19. Adula Ballo
2. Bita Lama 11. Walla 20. Maganatti Jarra
3. Gardaduma 12. Ruda 21. Maganatti Britti
4. Sonsa 13. Basa Dura 22. Garba Dura
5. Sorsa 14. Basa Ballo 23. Garba Balla
6. Rurruma 15. Areri Dura 24. Salban Dura
7. Algajima 16. Areri Ballo 25. Salban Balla
8. Lumasa 17. Carra 26. Salban Dullacha
9. Arb 18. Adula Dura 27. Garda Dullacha

Months can be identified by moon phase in relation to seven stars or star groups. They star groups are Triangulum (called Lami by Borana), Pleiades (called Busan by Borana), Aldebaran (called Bakkalcha by Borana), Bellatrix (called Algajima by Borana), central Orion (called Arb Gaddu by Borana), Saiph (called Urji Walla by Borana), and Sirius (called Basa by Borana) star systems.

Month and star system
Month name Star group Borana name

for star group

1. Bittottessa Triangulum Lami
2. Camsa Pleiades Busan
3. Bufa Aldebaran Bakkalcha
4. Wacabajjii Belletrix Algajima
5. Obora Gudda Central Orion-Saiph Arb Gaddu
6. Obora Dikka Sirius Basa
7. Birra full moon
8. Cikawa gibbous moon
9. Sadasaa quarter moon
10. Abrasa large crescent
11. Ammaji medium crescent
12. Gurrandala small crescent

The first day of the new year in

Borana star positions for the first six months.[3][4]

See also

  • Namoratunga

References

  1. ISBN 978-1851094776
    . Retrieved 1 December 2016.
  2. ^ a b Doyle, Laurance R. The Borana Calendar REINTERPRETED. Current Anthropology. Physics and Astronomy Department, University of California, Santa Cruz, at NASA Ames Research Center, Space Sciences Division, M.S., retrieved 7 April 2010.
  3. ^ a b c Asmarom Legesse. Gada Three Approaches to the Study of African Society. The Free Press A Division of McMillan Co. Inc, 1973
  4. ^ Laurance R. Doyle. Ancient African Skies. The SETI Institute, 7 April 2005; retrieved 28 September 2014
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