Acamar

Acamar (θ1 Eridani) is a white giant star in the constellation Eridanus. With an apparent magnitude of 3.24 it is the 220th-brightest star in the night sky.

Finder chart showing where Acamar is in the constellation Eridanus
Acamar (circled) in Eridanus, with the surrounding constellations and bright stars.
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Free to use with credit: Atlas of the Sky (constellationmap.org), CC BY 4.0 · More

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Facts

ConstellationEridanus
Designationθ1 Eridani (Theta Eridani), HR 897
Apparent magnitude3.24 (220th brightest)
Spectral typeA4III
Colorwhite (B−V 0.14)
Distance—
Right ascension2 h 58.3 min
Declination−40.30°
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 Acamar

Acamar is in Eridanus. From 40° N it is highest in the south in December evenings, about 10° above the horizon. From 35° S it reaches about 85° in the south. Nearby bright stars: Achernar (21° away), Ankaa (28° away) and Diphda (37° away).

Eridanus constellation →

Other named stars in Eridanus

AchernarCursaZaurakRanaRanTheeminSceptrumAzhaBeemimBeidKeidAngetenarZibal

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