Mothallah

Mothallah (α Trianguli) is a yellow-white subgiant star in the constellation Triangulum. With an apparent magnitude of 3.41 it is the 264th-brightest star in the night sky, and it is about 64 light-years from Earth.

Finder chart showing where Mothallah is in the constellation Triangulum
Mothallah (circled) in Triangulum, with the surrounding constellations and bright stars.
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Facts

ConstellationTriangulum
Designationα Trianguli (Alpha Trianguli), HR 544
Apparent magnitude3.41 (264th brightest)
Spectral typeF6IV
Coloryellow-white (B−V 0.49)
Distanceabout 64 light-years
Right ascension1 h 53.1 min
Declination+29.58°
Best monthDecember (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Mothallah

Mothallah is in Triangulum. From 40° N it is highest in the south in December evenings, about 80° above the horizon. From 35° S it reaches about 25° in the north. Nearby bright stars: Hamal (7° away), Mirach (11° away) and Almach (13° away).

Triangulum constellation →

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