[DOC] [TLE] Betelgeuse - Wikipedia [PAR] Coordinates: Sky map 05 55 10.3053, +07 24 25.426. Betelgeuse, also 
designated Alpha ... Distinctly reddish, it is a semiregular variable star whose 
apparent ... In 1920, Betelgeuse became the second star (after the Sun) to have 
the ..... became the first star outside the Solar System to have the angular size of 
its... [DOC] [TLE] Betelgeuse - Elite Galactic Wiki [PAR] Betelgeuse - Object type: Red supergiant, Star, Double or multiple star, ... 
Distinctly reddish, it is a semiregular variable star whose apparent magnitude 
varies between 0.0 and 1.3, the widest range of any first-magnitude star. ... In 
1920, Betelgeuse became the second star (after the Sun) to have the angular 
size of its... [DOC] [TLE] Free Flashcards about GENERAL SCIENCE - StudyStack [PAR] SNELL MEASURED THE EARTH BY FIRST USING THIS GEOMETRIC METHOD 
TO MEASURE THE DISTANCE ..... IN 1920 BETELGEUSE IN THIS 
CONSTELLATION BECAME THE FIRST STAR WHOSE SIZE WAS MEASURED, 
ORION. [DOC] [TLE] Betelgeuse  Revolutionizing Awareness [PAR] Distinctly reddish-tinted, it is a semiregular variable star whose apparent ... In 
1920, Alpha Ori was the first star (after the Sun) to have its angular ... 
Constellation  Orion .... Helped by John Anderson, the trio measured the angular 
diameter of  ... early 1990s, when Betelgeuse became a regular target for 
aperture masking... [DOC] [TLE] Betelgeuse | SIGMA AND MATRIX DECOMPOSITIONS [PAR] Betelgeuse is a star whose apparent magnitude varies between 0.2 and 1.2, the 
widest range of any first-magnitude star ... In 1920, Betelgeuse became the 
second star (after the Sun) to have the angular size of its photosphere measured. 
... ninth-brightest star in the night sky and second-brightest in the constellation of 
Orion... [DOC] [TLE] Betelgeuse - | Project Gutenberg Self-Publishing - eBooks | Read ... [PAR] Constellation  Orion ... Studies since 1990 have produced an angular diameter (
apparent size) .... In a study published in December 2000, the star's diameter was 
measured with .... On 13 December 1920, Betelgeuse became the first star 
outside the Solar .... Like many young stars in Orion whose mass is greater than 
10... [DOC] [TLE] Betelgeuse - Wikipedia [PAR] Nov 30, 2012 ... In 1920, Betelgeuse became the second star (after the Sun) whose angular size 
of its photosphere had been measured. ... The variation in Betelgeuse's 
brightness was first described in 1836 by Sir John Herschel, when he published 
his ...... ref> which is where the star is in the Orion constellation. [DOC] [TLE] star | astronomy | Britannica.com [PAR] Apr 13, 2016 ... With regard to mass, size, and intrinsic brightness, the Sun is a ... relative to the 
Sun  constellation ... star Betelgeuse oscillates between roughly 300 and 600 
solar radii. ... The importance and ubiquity of strong stellar winds became ..... star 
known as 61 Cygni was the first whose distance was measured... [DOC] [TLE] Betelgeuse - New World Encyclopedia [PAR] Betelgeuse is the upper left star (pink arrow) in the rectangle of bright stars in 
Orion. .... In the late 1980s and early 1990s, Betelgeuse became a regular target 
for ... Because of the size and proximity of this star, it has the third largest angular 
... The angular diameter of Betelgeuse was one of the first to be measured with 
an... [DOC] [TLE] ESO - Projects [PAR] Mar 19, 2007 ... Betelgeuse is the 7th brightest star in the northern hemisphere. ... Orionis; it's 
situated in the constellation of Orion and it's the brightest star in ... It's so bright 
that it sometimes could became a competitor of Rigel. ... The idea that 
interferometer might be applied to measure the size of stars was first proposed... [DOC] [TLE] Stars and Constellations - Quia [PAR] In this lesson, you will learn about stars and constellations. ... Magnitude is 
measured on a numerical scale, with a lower number indicating a higher 
magnitude. [DOC] [TLE] PICT0070-1_2-A view of "The Three Mary's", this is an enla | Flickr [PAR] Distinctly reddish, it is a semiregular variable

Question: In 1920 Betelgeuse in this constellation became the first star whose size was measured
Answer: Orion