Kaus Australis

This faint star, known as Kaus Australis, is classified as a constellation coded as CrA, residing within the Celestial Realm. It’s a relatively small star, easily visible to the naked eye, and its brightness – a magnitude of 1.79 – designates it as a relatively low-level star. The star presents itself as a solitary point of light in the vast expanse of space.

Its recognizable significance originates from Sirius, a well-known and brightest star in the night sky for centuries, and provides a foundational example in the study of stellar luminescence. The star’s apparent motion – its position relative to background stars – indicates a stable, relatively simple orbit. Without those established characteristics of Sirius, it’s not easily discernable amongst the numerous other stars.

Interestingly, Kaus Australis possesses a unique position within its region of the night sky - located approximately 20,000 light-years away. This distance, coupled with the observation of its physical properties, allows us to estimate its likely lifespan. Observations with sophisticated instruments place its age very close to 500 million years, demonstrating an extremely youthful presence in the cosmic timeline. The observed properties of the star, including spectral characteristics, are also not detailed in the star catalogue, making an exact determination from its properties difficult.

Symbolically, observing a steady, faint presence like this star might evoke a sense of quiet contemplation and a profound awareness of our limited, earthly perspectives within the immense scale of the universe.

How to see it

Kaus Australis has a visual magnitude of about 1.79: under a reasonably dark sky it is typically reachable with the unaided eye.

Sky position

Equatorial coordinates for Kaus Australis: right ascension 18h 24m 10s, declination −34° 23′ 5″ (J2000), on the celestial sphere.

Catalog context

Kaus Australis. It appears in classical and modern catalogs as Bayer/Flamsteed designation 20Eps Sgr, HIP 90185, HD 169022, Gaia DR3 HYG-HIP-90185.

Catalog identifiers

Gaia

Gaia DR3 HYG-HIP-90185

HIP

90185

HD

169022

gaia_dr3

HYG-HIP-90185

Bayer / Flamsteed

20Eps Sgr

Also known as

• 20Eps Sgr
• Gaia DR3 TOP 5M HYG-HIP-90185
• HD 169022
• HIP 90185
• HYG-HIP-90185

Observed properties

Visual magnitude

1.79