Acamar – a star remarkably identifiable as a member of the constellation For, located in the Southern hemisphere. It occupies the NGC 999 constellation, characterized by its slightly variable but stable luminosity. This star measures approximately 3.228 i
The recognizable nature of Acamar stems from its relatively consistent brightness, particularly compared to the brighter stars in its region. Due to its apparent position in a relatively smooth area of the sky, this has led to its frequent observation for historical and observational study throughout the age of astronomy. It's often viewed as a foundational, reliable star for astronomers who sought to establish a framework for understanding spatial variations in star brightness. It presents a familiar, stable point of reference for cataloging and analysis, a steadfast anchor within the seemingly vast expanse of the heavens.
How to see it
Acamar has a visual magnitude of about 3.23: under a reasonably dark sky it is typically reachable with the unaided eye.
Sky position
Equatorial coordinates for Acamar: right ascension 2h 58m 16s, declination −40° 18′ 16″ (J2000), in the region of the Fornax constellation (IAU figure For).
Catalog context
Acamar. It appears in classical and modern catalogs as Bayer/Flamsteed designation The1Eri, HIP 13847, HD 18622, Gaia DR3 5044368071870093312. In the SkyKeepsake Fornax (For) browse hub it sits with other stars of the same IAU figure.
Catalog identifiers
- Gaia
- Gaia DR3 5044368071870093312
- HIP
- 13847
- HD
- 18622
- gaia_dr3
- 5044368071870093312
- Bayer / Flamsteed
- The1Eri
Also known as
- Gaia DR3 TOP 5M 5044368071870093312
- HD 18622
- HIP 13847
- The1Eri
Observed properties
- Visual magnitude
- 3.23