page_title: Orders of magnitude (numbers)
section_title: 1012
hierarchical_section_title: Orders of magnitude (numbers) / 1012
caption_attribution_description: Deutsch&#58; Die Andromedagalaxie ist eine Spiralgalaxie im Sternbild Andromeda (etwa 2,4 bis 2,9 Millionen Lichtjahre entfernt). Das Foto zeigt auch die Messierobjekte 32 und 110, sowie NGC 206 (eine helle Sternassoziation in der Andromedagalaxie) und den Stern ν Andromedae. Kombination von LRGB- und Hα-Bilddaten.English&#58; The Andromeda Galaxy is a spiral galaxy approximately 2.5&#160;million&#160;light-years away in the constellation Andromeda. The image also shows Messier Objects 32 and 110, as well as NGC 206 (a bright star cloud in the Andromeda Galaxy) and the star Nu Andromedae. This image was taken using a hydrogen-alpha filter.Español&#58; La Galaxia de Andrómeda es una galaxia espiral a aproximadamente 2,5 millones de años luz, en la Constelación de Andrómeda. La imagen también muestra las galaxias elípticas M32 y M110, así como NGC 206 (una brillante nube estelar en la Galaxia de Andrómeda) y la estrella Ni Andromedae.Français&#58; La galaxie d’Andromède est une galaxie spirale entre 2,4 et 2,9 millions d’années-lumière de la Terre. On peut voir aussi dans cette image les objets M32 et M110 du Catalogue Messier.العربية&#58; مجرَّة المرأة المُسلسلة هي مجرَّة حلزونيَّة تبعد حوالي 2.5&#160;مليون&#160;سنة ضوئيَّة وتقع في كوكبة المرأة المُسلسلة. يظهر في الصورة أيضًا العديد من الأجرام المسييهيَّة مثل مسييه 32 ومسييه 110، بالإضافة إلى NGC 206 (سحابة نجم ساطع تقع ضمن مجرَّة المرأة المُسلسلة) والنجم نو أندروميدايي. التُقطت هذه الصُورة باستخدام مُرشِّح ألفا-H.Norsk bokmål: Andromedagalaksen, en spiralgalakse 2,5 millioner lysår unna i Stjernebildet Andromeda. Messierobjektene M31 og M110 samt NGC 206 vises også på bildet.
context_page_description: This list contains selected positive numbers in increasing order, including counts of things, dimensionless quantity and probabilities. Each number is given a name in the short scale, which is used in English-speaking countries, as well as a name in the long scale, which is used in some of the countries that do not have English as their national language.
context_section_description: (1000000000000; 1000⁴; short scale: one trillion; long scale: one billion)
  ISO: tera- (T)
  Astronomy: Andromeda Galaxy, which is part of the same Local Group as our galaxy, contains about 10¹² stars.
  Biology – Bacteria on the human body: The surface of the human body houses roughly 10¹² bacteria.
  Astronomy – Galaxies: A 2016 estimate says there are 2 × 10¹² galaxies in the observable universe.
  Biology: An estimate says there were 3.04 × 10¹² trees on Earth in 2015.
  Marine biology: 3,500,000,000,000 (3.5 × 10¹²) – estimated population of fish in the ocean.
  Mathematics: 7,625,597,484,987 – a number that often appears when dealing with powers of 3. It can be expressed as , , ,  and ³3 or when using Knuth's up-arrow notation it can be expressed as  and .
  Mathematics: 10¹³ – The approximate number of known non-trivial zeros of the Riemann zeta function as of 2004.
  Mathematics – Known digits of π: As of March 2019, the number of known digits of π is 31,415,926,535,897 (3.14×10¹³).
  Biology – approximately 10¹⁴ synapses in the human brain.
  Astronomy: IC 1101, a supergiant elliptical galaxy located inside the Abell 2029 cluster, is estimated to have approximately 100 trillion (10¹⁴) stars inside the galaxy, making it the largest known galaxy in the Universe.
  Biology – Cells in the human body: The human body consists of roughly 10¹⁴ cells, of which only 10¹³ are human. The remaining 90% non-human cells (though much smaller and constituting much less mass) are bacteria, which mostly reside in the gastrointestinal tract, although the skin is also covered in bacteria.
  Cryptography: 150,738,274,937,250 configurations of the plug-board of the Enigma machine used by the Germans in WW2 to encode and decode messages by cipher.
  Computing – MAC-48: 281,474,976,710,656 (2⁴⁸) possible unique physical addresses.
  Mathematics: 953,467,954,114,363 is the largest known Motzkin prime.
caption: 1012 stars in the Andromeda Galaxy
exif: {}