Corona Borealis is a small constellation in the Northern Celestial Hemisphere. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constel
The constellation Corona Borealis as it can be seen by the naked eye
X-ray image of galaxy cluster Abell 2142
Hercules and Corona Borealis, as depicted in Urania's Mirror (c. 1825)
The constellation Corona Borealis showing the IAU boundaries, the constellation stick figure, and labels for its brightest stars. Astrophotograph by Eckhard Slawik, from NOIRLab's 88 Constellations project.
Corona Australis is a constellation in the Southern Celestial Hemisphere. Its Latin name means "southern crown", and it is the southern counterpart of Corona Borealis, the northern crown. It is one of
Corona Borealis
…Other cultures likened the pattern to a circle of elders, an eagle's nest, a bear's den or a smokehole. Ptolemy also listed a southern counterpart, Corona Australis, with a similar pattern. The brightest star is the magnitude 2.2 Alpha Coronae Borealis. The yellow supergiant R Coronae Borealis is the prototype of…
The constellation Corona Australis as it can be seen by the naked eye
The Milky Way as seen by Gaia, with prominent dark features labeled in white, as well as prominent star clouds labeled in black. Corona Australis is on the left bottom center.
The R Coronae Australis region. The dust of the cloud is illuminated blue by starlight. Stars that are forming inside the cloud could only be detected by observing at longer wavelengths.
Detail of the star-forming region and Coronet Cluster, with the distinct Herbig–Haro object HH 100/Bernes 158 to the left.