Cas, a prominent star within the constellation, is renowned for its exceptionally bright magnitude – 1.943. It is located in the Galactic Northern Refrigerator and exhibits a relatively stable orbit, rarely exhibiting significant parallax variation. It is
Schedar, due to its unusually high visual brightness, has been consistently identified and recognized throughout astronomical history as a valuable landmark in the night sky. Its presence is frequently considered a key indicator and a vital part of the overall structure of the Cas constellation. The established observation of its brightness allows for precise estimations of stellar distances.
Historically, many astronomers have drawn significance to the star Schedar, particularly considering its role in determining astronomical measurements. Its relatively stable position and brightness allows for clear estimation and measurement of the distance between celestial objects using the principle of parallax. It offers a practical point of reference within the cosmos for calculating distances to star systems.
How to see it
Schedar has a visual magnitude of about 1.94: under a reasonably dark sky it is typically reachable with the unaided eye.
Sky position
Equatorial coordinates for Schedar: right ascension 0h 40m 31s, declination +56° 32′ 14″ (J2000), in the region of the Cassiopeia constellation (IAU figure Cas).
Catalog context
Schedar. It appears in classical and modern catalogs as Bayer/Flamsteed designation 18Alp Cas, HIP 3179, HD 3712, Gaia DR3 418551920284673408. In the SkyKeepsake Cassiopeia (Cas) browse hub it sits with other stars of the same IAU figure.
Catalog identifiers
- Gaia
- Gaia DR3 418551920284673408
- HIP
- 3179
- HD
- 3712
- gaia_dr3
- 418551920284673408
- Bayer / Flamsteed
- 18Alp Cas
Also known as
- 18Alp Cas
- Gaia DR3 TOP 5M 418551920284673408
- HD 3712
- HIP 3179
Observed properties
- Visual magnitude
- 1.94