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Star in the constellation Triangulum
Alpha Trianguli (α Trianguli, abbreviated Alpha Tri, α Tri) is a triple star system in the constellation of Triangulum. Based on parallax measurements
Alpha_Trianguli
Star in the constellation Triangulum Australe
Alpha Trianguli Australis (Latinised from α Trianguli Australis, abbreviated Alpha TrA, α TrA), officially named Atria (/ˈeɪtriə/), is the brightest star
Alpha_Trianguli_Australis
Constellation in the northern celestial hemisphere
and Gamma Trianguli, of apparent magnitudes 3.00 and 4.00, respectively, form the base of the triangle and the yellow-white Alpha Trianguli, of magnitude
Triangulum
Constellation in the southern celestial hemisphere
charted and gave the brighter stars their Bayer designations in 1756. Alpha Trianguli Australis, known as Atria, is a second-magnitude orange giant and the
Triangulum_Australe
Rio Grande do Sul Alpha Trianguli Australis (Atria) Triangulum Australe, the Southern Triangle 2 1889 1889 Santa Catarina Beta Trianguli Australis Triangulum
Flag_of_Brazil
Magellanic Cloud Galaxy 1.88 Alpha Trianguli Australis (Atria) Star 1.90 1.89 Beta Aurigae (Menkalinan) Binary star system 1.918 Alpha Pavonis (Peacock) Binary
List of brightest natural objects in the sky
List_of_brightest_natural_objects_in_the_sky
Star in the constellation Triangulum Australe
the southern constellation of Triangulum Australe. Along with Alpha and Beta Trianguli Australis it forms a prominent triangular asterism that gives the
Gamma_Trianguli_Australis
Topics referred to by the same term
(genus), a flatworm genus in the family Dendrocoelidae Atria (star) or Alpha Trianguli Australis, a star in the constellation Triangulum Australe Atria (company)
Atria
B1V Beta Capricorni (Dabih) A 390 ± 30 Capricornus K0II B B8V/A0III Alpha Trianguli Australis (Atria) 391 ± 7 Triangulum Australe K2Ib-IIa 1.91 Kepler-446
List of star systems within 350–400 light-years
List_of_star_systems_within_350–400_light-years
Branch of astronomy that uses X-ray observation
Sciortino S (1994). "X-ray emission on hybrid stars: ROSAT observations of alpha Trianguli Australis and IOTA Aurigae". Astrophys J. 431: 402. Bibcode:1994ApJ
X-ray_astronomy
الثّريّا Alpha Persei Mizar al-Mi'zar the Apron المئزر Zeta Ursae Majoris Mothallah Ra'as ul-Muthallath (Head of) the Triangle الرعس المثلث Alpha Trianguli Muhlifain
List_of_Arabic_star_names
Galaxy in the constellation Triangulum
constellation of Triangulum, positioned around 2° to the southwest of the star Alpha Trianguli. The original object designated NGC 672 was discovered by the German-born
NGC_672
system". VizieR Online Data Catalog. 2237. Bibcode:2002yCat.2237....0D. "Alpha Boo". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-12-22
List_of_nearest_giant_stars
Astronomical object emitting X-rays
cross from the main sequence to become red giants. Alpha Trianguli Australis (α TrA / α Trianguli Australis) appears to be a Hybrid star (parts of both
Astrophysical_X-ray_source
06h 16m 26.61911s +12° 16′ 19.7876″ FV Gliese 3383 64.0 +8.5 −6.7 GV Alpha Trianguli (Mothallah) A$ 64.1 ± 1.0 Triangulum 01h 53m 04.90710s +29° 34′ 43
List of star systems within 60–65 light-years
List_of_star_systems_within_60–65_light-years
emission of the ultrashort-period, low-mass eclipsing binary system BX Trianguli". Astronomy and Astrophysics. 619: A138. arXiv:1809.00971. Bibcode:2018A&A
List_of_smallest_known_stars
Star in the constellation Auriga
(August 1994), "X-ray emission on hybrid stars: ROSAT observations of alpha Trianguli Australis and IOTA Aurigae", The Astrophysical Journal, 431 (1): 402–415
Iota_Aurigae
Jìnnánjíxīngōu) under the name Triangle (三角形, Sānjiǎoxíng). Atria (Alpha Trianguli Australis) is the brightest star in this constellation. It is never
Triangulum Australe in Chinese astronomy
Triangulum_Australe_in_Chinese_astronomy
Generalization of Pythagorean theorem
appeared in Europe as early as the 15th century, in Regiomontanus's De triangulis omnimodis (On Triangles of All Kinds, 1464), a comprehensive survey of
Law_of_cosines
Fundamental trigonometric functions
were further promulgated by Euler (see below). The Opus palatinum de triangulis of Georg Joachim Rheticus, a student of Copernicus, was probably the first
Sine_and_cosine
Star in the constellation Perseus
Andromedae, υ Andromedae, τ Andromedae, 56 Andromedae, β Trianguli, γ Trianguli and δ Trianguli. Consequently, the Chinese name for φ Persei itself is 天大將軍二
Phi_Persei
Constellations recognized by the International Astronomical Union
Tri Tria Trianguli ancient Ptolemy triangle Alaybasan 3.00 132 Triangulum Australe /traɪˈæŋɡjʊləm ɔːˈstræliː, -ˈstreɪ-/ TrA TrAu Trianguli Australis
IAU_designated_constellations
– Bruneiastronomy.org". Retrieved 2020-10-11. Kaler, James B. "Menkar (Alpha Ceti)". Stars. University of Illinois. Archived from the original on 2012-05-31
List_of_proper_names_of_stars
Splitting a triangle by perpendicular lines
Jacques (1744), "XXIX: Solutio algebraica problematis de quadrisectione trianguli scaleni, per duas normales rectas", Jacobi Bernoulli, Basileensis, Opera
Bernoulli quadrisection problem
Bernoulli_quadrisection_problem
5th episode of the 2nd season of Star Trek: The Original Series
inhabitants live only to serve a machine. The USS Enterprise arrives at Gamma Trianguli VI, a planet appearing to be a tropical paradise with very rich natural
The Apple (Star Trek: The Original Series)
The_Apple_(Star_Trek:_The_Original_Series)
12.400s +23° 25′ 03.54″ G8III-IV 4.403 12.5624±0.2525 B G8III-IV Iota Trianguli B 260 ± 10 Triangulum F5V 6.83 Zeta Sagittae 260 ± 10 Sagitta A3 Vnn +5
List of star systems within 250–300 light-years
List_of_star_systems_within_250–300_light-years
Star in the constellation Triangulum Australe
RT Trianguli Australis, or RT TrA, is a BL Herculis variable (type II Cepheid) in the constellation of Triangulum Australe. RT TrA varies between apparent
RT_Trianguli_Australis
to make a detectable contribution. For example, the binary star system Alpha Centauri has the total or combined magnitude of −0.27, while its two component
List_of_brightest_stars
Brown dwarf in the constellation Triangulum Australe
Pavonis (19.893±0.015 ly) planet b? Main-sequence stars A-type Altair (Alpha Aquilae) (16.730±0.049 ly) G-type Alsafi (Sigma Draconis) (18.7993±0.0081
WISE_1639−6847
02 6.17 K1V + DQ6 b 89 Mu Fornacis Fornax 320 ± 8 5.27 A0 V 92 Delta Trianguli Triangulum 35.2 ± 0.1 4.865 G0V + G9V to K4V 94 Ross 19 Triangulum 56
List of Gliese and GJ objects (1-1000)
List_of_Gliese_and_GJ_objects_(1-1000)
IIIb Fe−0.5 +4.62 Alpha Equulei (Kitalpha) A 190 ± 2 Equuleus 21h 15m 49.437s +05° 14′ 52.41″ G7III +3.919 B kA3hA4mA9 Gamma Trianguli Australis 190 ± 4
List of star systems within 150–200 light-years
List_of_star_systems_within_150–200_light-years
Mathematical relation in spherical triangles
solving spherical triangles in Peuerbach's student Regiomontanus's De triangulis omnimodis (unfinished at Regiomontanus's death in 1476, published posthumously
Spherical_law_of_cosines
Benedict, G. Fritz (2021-07-01). "Precision Millimeter Astrometry of the Alpha Centauri AB System". The Astronomical Journal. 162 (1): 14. arXiv:2104.10086
List of nearest stars by spectral type
List_of_nearest_stars_by_spectral_type
Temporary spots on the Sun's surface
reported the largest cool starspot ever seen rotating the giant K0 star XX Trianguli (HD 12545) with a temperature of 3,500 K (3,230 °C), together with a warm
Sunspot
Constellation in the northern celestial hemisphere
S. (1994). "X-ray emission on hybrid stars: ROSAT observations of α Trianguli Australis and ι Aurigae". The Astrophysical Journal. 431 (1): 402–415
Auriga
to treat trigonometry as a distinct mathematical discipline, in his De triangulis omnimodis written in 1464, as well as his later Tabulae directionum which
History_of_trigonometry
exoplanet (K2-141b). Iota Antliae 202 ± 2 Antlia K1 III +4.60 Epsilon Trianguli Australis 202 ± 2 Triangulum K0 III 4.11 107 Aquarii A (i² Aquarii) 202
List of star systems within 200–250 light-years
List_of_star_systems_within_200–250_light-years
Retrieved 2010-06-21. "Alpha Centauri". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-06-21. "Alpha Librae". SIMBAD. Centre de
List_of_stars_for_navigation
Area of geometry, about angles and lengths
earliest works on trigonometry by a northern European mathematician is De Triangulis by the 15th century German mathematician Regiomontanus, who was encouraged
Trigonometry
the system (BD-14 3065 A), a subgiant star. Also known as TOI-4987 b BX Trianguli b 7.5 3923 4.5 timing 192±7 0.858 (combined) 3735 + 3359 CI Tauri c 3
List of exoplanets discovered in 2024
List_of_exoplanets_discovered_in_2024
28′ 35.5887″ M4V 11.96 has 1 known planet (b), and a candidate (c) Beta Trianguli Australis 40.2 ± 0.3 Triangulum Australe 04h 52m 05.73212s +06° 28′ 35
List of star systems within 40–45 light-years
List_of_star_systems_within_40–45_light-years
problems, including several geometric ones. 1464—Regiomontanus writes De Triangulis omnimodus, which is one of the earliest texts to treat trigonometry as
Timeline_of_mathematics
32′ 40.5141″ K3V 6.40/11.4 B K3V C M2 Gliese 488 35.2 ± 0.4 MV Delta Trianguli A (Deltoton) 35.4 ± 0.3 Triangulum 02h 17m 03.23016s +34° 13′ 27.2260″
List of star systems within 35–40 light-years
List_of_star_systems_within_35–40_light-years
nails, trachyonychia) Uncombable hair syndrome (cheveux incoiffable, pili trianguli et canaliculi, spun-glass hair) Wooly hair nevus (woolly hair nevus) X-linked
List_of_skin_conditions
A F9IV 2.91 2.74 16h 41m 17.16s +31° 36′ 09.8″ 35.2 B G7V 5.43 5.26 δ Trianguli (Deltoton) G0V 4.84 4.66 02h 17m 03.23s +34° 13′ 27.2″ 35.4 β Virginis
List_of_nearest_bright_stars
VZ 17471 13121 02h 48m 45.87s +25° 11′ 17.1″ 5.89 0.14 460 A0V 16 Trianguli; Alpha² CVn variable, Vmax = 5.82m, Vmin = 5.89m 1 Ari B 1 11155 01h 50m 08
List_of_stars_in_Aries
Observatory
Archenhold, Friedrich Simon (1892). "Beobachtungen des veränderlichen Sterns R Trianguli (BD. + 33°.470)". Astronomische Nachrichten. 131 (131): 259. Bibcode:1892AN
Archenhold_Observatory
{\displaystyle {\sqrt {(5772/4,150)^{4}*5,500}}=143.46\ R\odot } Using Alpha Aquarii's measured angular diameter at 3.066±0.036 milliarcseconds (mas)
List_of_nearest_supergiants
Star in the constellation Centaurus
of triple-α, CN, ON, and perhaps some Ne–Na reactions. Carbon star RT Trianguli Australis Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos
V553_Centauri
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