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Equuleus Constellation

Equuleus (Pronounciation:Ek-we-lee-us, Abbrev:Equ, Latin:Equulei) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Equuleus takes up 71.641 sq. degrees of the night sky which equates to 0.17% of the night sky. The constellation gets its name as it name means The Horse . 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.

Equuleus is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Equuleus is an equatorial constellation that can be seen by countries nearest the Equator.

The brightest star in Equuleus is Kitalpha. There are 2 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site.

Equuleus Star and Deep Space Object Count

The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Equuleus is 170. The number of stars that are of magnitude 6.0 or lower in the constellation is 11. The number of stars in the constellation that make up the outline is 5.

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 Gliese 818 which is roughly about 49.11 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HD 200964 which is about 235.5 Light Years. The furthest star that can be located in the constellation is HIP 103586 which is located about 81540.84 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 Equuleus with the naked eye is HD 199942. The dim star has an apparent magnitude of 5.98. 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

Was known as Celaris, the foal brother of Pegasus who was given to Mercury by Castor.

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

Equuleus Facts

Is a Zodiac Sign No
Brightest StarKitalpha
Area71.641 sq. deg.
Percentage of Night Sky0.17%
Size Position87th
Hemisphere Equatorial
Site Exoplanet Count2
Meteor Shower Count2
Nearest StarGliese 818
Nearest Star with Exoplanet(s)HD 200964
Dimmest StarHD 199942
Furthest StarHIP 103586
Bright Star Count11
Hipparcos Star Count170
Main Star Count5
Messier Deep Space Object Count0
*Non-Messier Deep Space Object Count0
Bordering / Neighbouring / Surrounding ConstellationsDelphinus

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

Equuleus Constellation Map

Equuleus Constellation Star Map

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

List of Stars with Exoplanets in Equuleus

StarDistance (Lt. Yrs.)Exoplanet CountDeclinationRight Ascension
HD 200964235.502+03d 48` 10.821h 06m 39.79

List of Named Stars in Equuleus 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
4 Equulei159.57+05d 57` 30.621h 05m 26.79
6 Equulei443.16+10d 02` 56.021h 10m 31.31
9 Equulei654.95+07d 21` 16.421h 21m 04.80
Beta Equulei330.79+06d 48` 40.021h 22m 53.58
Delta Equulei60.30+10d 00` 27.821h 14m 28.79
Epsilon Equulei176.40+04d 17` 37.820h 59m 04.54
Gamma Equulei118.39+10d 07` 55.021h 10m 20.47
Gliese 81849.11+07d 04` 14.421h 05m 19.70
Kitalpha190.29+05d 14` 53.121h 15m 49.40
Lambda Equulei264.10+07d 10` 47.321h 02m 12.51
S Equulei1953.07+05d 04` 49.420h 57m 12.83
SY Equulei4181.58+09d 55` 55.021h 23m 28.81
Zeta Equulei769.25+05d 30` 10.321h 04m 34.64

Equuleus Constellation's Star Breakdown

Type Breakdown

KLight Orange Star 3,700 - 5,200k61
FYellow-White 6,000 - 7,500k45
AWhite 7,500 - 10,000k34
GYellow 5,200 - 6,000k14
MRed Dwarf Star <3,700k9
BBlue-White 10,500 - 30,000k2

Size Breakdown

VMain Sequence11
IIINormal Giant9

Breakdown of Carbon Stars by Type

RR-Type Carbon Star1

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