ASTRONOMER

Habash al-Hasib al-Marwazi

770 - 874

Habash al-Hasib al-Marwazi

Ahmad ibn 'Abdallah al-Marwazi, known as Habash al-Hasib (Persian: حبش الحاسب, lit. 'Abyssinian calculator', died c. 869) was a Persian astronomer, geographer, and mathematician from Merv in Khorasan, who discovered the trigonometric ratios tangent, and cotangent. Al-Biruni who cited Habash in his work, expanded his astronomical tables. Habash al-Hasib flourished in Baghdad, and died a centenarian some time between 864 and 874 possibly in Abbasid Samarra. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Habash al-Hasib al-Marwazi is the 171st most popular astronomer (down from 150th in 2019), the 18th most popular biography from Turkmenistan (down from 17th in 2019) and the most popular Turkmen Astronomer.

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Among ASTRONOMERS

Among astronomers, Habash al-Hasib al-Marwazi ranks 171 out of 644. Before him are Cornelis Johannes van Houten, John Goodricke, Nicole-Reine Lepaute, Margaret Burbidge, Taqi ad-Din Muhammad ibn Ma'ruf, and Carl Keenan Seyfert. After him are James Craig Watson, Giovanni Battista Hodierna, Robert Grant Aitken, Franz Xaver von Zach, Guillaume Bigourdan, and Nikolai Chernykh.

Most Popular Astronomers in Wikipedia

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Cornelis Johannes van Houten
1920 - 2002
HPI: 65.44
Rank: 165
John Goodricke
1764 - 1786
HPI: 65.44
Rank: 166
Nicole-Reine Lepaute
1723 - 1788
HPI: 65.31
Rank: 167
Margaret Burbidge
1919 - 2020
HPI: 65.31
Rank: 168
Taqi ad-Din Muhammad ibn Ma'ruf
1526 - 1580
HPI: 65.26
Rank: 169
Carl Keenan Seyfert
1911 - 1960
HPI: 65.24
Rank: 170
Habash al-Hasib al-Marwazi
770 - 874
HPI: 65.12
Rank: 171
James Craig Watson
1838 - 1880
HPI: 65.02
Rank: 172
Giovanni Battista Hodierna
1597 - 1660
HPI: 64.93
Rank: 173
Robert Grant Aitken
1864 - 1951
HPI: 64.90
Rank: 174
Franz Xaver von Zach
1754 - 1832
HPI: 64.89
Rank: 175
Guillaume Bigourdan
1851 - 1932
HPI: 64.83
Rank: 176
Nikolai Chernykh
1931 - 2004
HPI: 64.76
Rank: 177

Contemporaries

Among people born in 770, Habash al-Hasib al-Marwazi ranks 8. Before him are Einhard, Michael I Rangabe, Pepin the Hunchback, Michael II, Ali al-Ridha, and Al-Hakam I. After him are Theodosia, wife of Leo V, Bera, Count of Barcelona, Maria of Amnia, Hugh of Tours, and Prokopia. Among people deceased in 874, Habash al-Hasib al-Marwazi ranks 4. Before him are Hasan al-Askari, Bayazid Bastami, and Antipope John VIII. After him are Girart de Roussillon, Salomon, King of Brittany, Gisela, daughter of Louis the Pious, Unruoch III of Friuli, and Yahya ibn Yahya.

Others Born in 770

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Einhard
WRITER
770 - 840
HPI: 73.58
Rank: 2
Michael I Rangabe
POLITICIAN
770 - 844
HPI: 73.53
Rank: 3
Pepin the Hunchback
POLITICIAN
770 - 811
HPI: 73.43
Rank: 4
Michael II
POLITICIAN
770 - 829
HPI: 73.34
Rank: 5
Ali al-Ridha
RELIGIOUS FIGURE
770 - 818
HPI: 73.16
Rank: 6
Al-Hakam I
POLITICIAN
770 - 822
HPI: 68.24
Rank: 7
Habash al-Hasib al-Marwazi
ASTRONOMER
770 - 874
HPI: 65.12
Rank: 8
Theodosia, wife of Leo V
COMPANION
770 - Present
HPI: 63.33
Rank: 9
Bera, Count of Barcelona
POLITICIAN
770 - 844
HPI: 61.79
Rank: 10
Maria of Amnia
NOBLEMAN
770 - 823
HPI: 59.93
Rank: 11
Hugh of Tours
NOBLEMAN
770 - 837
HPI: 59.78
Rank: 12
Prokopia
COMPANION
770 - Present
HPI: 58.32
Rank: 13

Others Deceased in 874

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Hasan al-Askari
RELIGIOUS FIGURE
846 - 874
HPI: 72.62
Rank: 1
Bayazid Bastami
PHILOSOPHER
804 - 874
HPI: 71.16
Rank: 2
Antipope John VIII
RELIGIOUS FIGURE
818 - 874
HPI: 67.24
Rank: 3
Habash al-Hasib al-Marwazi
ASTRONOMER
770 - 874
HPI: 65.12
Rank: 4
Girart de Roussillon
NOBLEMAN
810 - 874
HPI: 60.93
Rank: 5
Salomon, King of Brittany
NOBLEMAN
900 - 874
HPI: 60.89
Rank: 6
Gisela, daughter of Louis the Pious
RELIGIOUS FIGURE
820 - 874
HPI: 59.25
Rank: 7
Unruoch III of Friuli
POLITICIAN
840 - 874
HPI: 56.85
Rank: 8
Yahya ibn Yahya
NOBLEMAN
HPI: 56.48
Rank: 9