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Corona Australis Constellation

Corona Australis (Pronounciation:Core-ona Ore-stra-liss, Abbrev:CrA, Latin:Coronae Australis) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Corona Australis takes up 127.696 sq. degrees of the night sky which equates to 0.31% of the night sky. The constellation gets its name as it name means The Southern Crown . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.

Corona Australis is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Corona Australis is a southern hemispheric constellation which means it can't be seen easily or at all from the northern hemisphere.

The brightest star in Corona Australis is Alfecca Meridiana. There are 1 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site.

Corona Australis Star and Deep Space Object Count

The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Corona Australis is 485. The number of stars that are of magnitude 6.0 or lower in the constellation is 28. The number of stars in the constellation that make up the outline is 7.

There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.

Stars of Interest

The nearest star to Earth is HIP 89211 which is roughly about 42.74 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HD 166724 which is about 138.03 Light Years. The furthest star that can be located in the constellation is HIP 94864 which is located about 108721 Light Years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

The dimmest star that can be seen in Corona Australis with the naked eye is HD 179433. The dim star has an apparent magnitude of 5.91. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

Legend of the Constellation

Believed to be the fallen crown of Sagittarius .

There are no major meteor showers that radiate from within this constellation.

Corona Australis Facts


NameCorona Australis
AbbreviationCrA
Is a Zodiac Sign No
Brightest StarAlfecca Meridiana
Area127.696 sq. deg.
Percentage of Night Sky0.31%
Size Position80th
Hemisphere Southern
Site Exoplanet Count1
Meteor Shower Count1
Nearest StarHIP 89211
Nearest Star with Exoplanet(s)HD 166724
Dimmest StarHD 179433
Furthest StarHIP 94864
Bright Star Count28
Hipparcos Star Count485
Main Star Count7
Messier Deep Space Object Count0
*Non-Messier Deep Space Object Count0
Sagittarius
Scorpius
Ara
Telescopium

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.


Corona Australis Constellation Map


Corona Australis Constellation Star Map

The map was generated using Night Vision, an awesome free application by Brian Simpson.

List of Stars with Exoplanets in Corona Australis


StarDistance (Lt. Yrs.)Exoplanet CountDeclinationRight Ascension
HD 166724138.031-42d 34` 30.718h 13m 59.65

List of Named Stars in Corona Australis without Extrasolar Planets

As there's so many stars in the cosmos, not all the stars are listed here. The site has lots of stars not listed so if your star isn't listed and you know the Henry Draper or Hipparcos ID, type https://www.universeguide.com/star/ then followed by the HIPNNNNNN or HDNNNN where NNNNN is the number part of the name. The stars that I do list have either a traditional name, a bayer or other classification name.

StarDistance (Lt. Yrs.)DeclinationRight Ascension
Alfecca Meridiana125.35-37d 54` 15.319h 09m 28.28
Beta Coronae Australis474.07-39d 20` 26.519h 10m 01.75
Delta Coronae Australis178.52-40d 29` 47.919h 08m 20.93
Epsilon Coronae Australis98.45-37d 06` 25.518h 58m 43.47
Eta1 Coronae Australis336.25-43d 40` 48.018h 48m 50.47
Eta2 Coronae Australis481.78-43d 26` 02.518h 49m 35.00
Gamma Coronae Australis56.44-37d 03` 45.919h 06m 25.04
Kappa1 Coronae Australis154.00-38d 43` 12.018h 33m 23.08
Kappa2 Coronae Australis973.62-38d 43` 33.418h 33m 23.13
Lambda Coronae Australis205.26-38d 19` 23.918h 43m 46.94
Mu Coronae Australis395.83-40d 24` 22.018h 47m 44.60
R Coronae Australis79.69-36d 57` 08.119h 01m 53.68
Theta Coronae Australis557.54-42d 18` 44.918h 33m 30.16
V Coronae Australis-38d 09` 32.318h 47m 32.31
V692 Coronae Australis1164.87-41d 20` 09.918h 13m 12.70
V701 Coronae Australis223.40-38d 15` 11.519h 03m 17.69
V718 Coronae Australis639.54-43d 11` 08.818h 39m 35.18
Zeta Coronae Australis193.11-42d 05` 42.019h 03m 06.83

Corona Australis Constellation's Star Breakdown


Type Breakdown


TypeDescriptionCount
FYellow-White 6,000 - 7,500k139
GYellow 5,200 - 6,000k129
KLight Orange Star 3,700 - 5,200k94
BBlue-White 10,500 - 30,000k60
AWhite 7,500 - 10,000k33
MRed Dwarf Star <3,700k15

Size Breakdown


TypeDescriptionCount
VMain Sequence202
IIINormal Giant168
IVSubgiant65
IIBright Giant12
IaLuminous Supergiant1
IbLess Luminous Supergiant1

Breakdown of Carbon Stars by Type


TypeDescriptionCount
RR-Type Carbon Star2
CC-Type Carbon Star1


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