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Sky-Tonight.com / Constellations / Capricornus
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Observation Settings

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This Earth map lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Capricornus Constellation

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Capricornus, the sea-goat, is a zodiac constellation that is one of the oldest documented constellations, representing a creature that is part goat and part fish.

Capricornus (The Goat)

Capricornus, often referred to as "The Sea-Goat," is one of the twelve zodiac constellations and represents a mythological creature with the front half of a goat and the tail of a fish. It is a moderately bright constellation located in the Southern Hemisphere and holds significant cultural and astrological importance.

Key Features

  • Bright Stars: Capricornus is not particularly known for bright stars, but it has some notable ones:
    • Delta Capricornus (Deneb Algedi): The brightest star in Capricornus, a yellow giant located about 39 light-years away.
    • Alpha Capricornus (Algedi): A binary star system marking the goat's head, located about 109 light-years away.
    • Beta Capricornus (Dabih): A giant star, forming part of the creature's body.
  • Deep-Sky Objects: While Capricornus does not feature many deep-sky objects, it is still home to a few interesting ones:
    • Messier M30: A globular cluster containing hundreds of thousands of stars
    • NGC 6907: A barred spiral galaxy located about 80 million light-years away.

Mythological Background

In Greek mythology, Capricornus is commonly identified with the god Pan, who was half-man and half-goat. During a battle with the monster Typhon, Pan dove into the river and transformed his lower body into that of a fish to escape. As a result, the constellation symbolizes both his goat-like features and the aquatic tail of a fish.

Another interpretation links Capricornus with the god of the Nile, and it was sometimes represented as a fish with the head of a goat. This dual nature of land and water reflects the transition of life from one state to another, representing perseverance and adaptability.

Cultural Significance

Capricornus is associated with the winter solstice, as the Sun passes through this constellation around December 21st each year. This time marks the shortest day of the year and the beginning of longer days, symbolizing rebirth and renewal. In astrology, Capricorn (born between December 22 and January 19) is seen as practical, disciplined, and ambitious, often embodying qualities of determination and resilience.

Historically, Capricornus was important to ancient civilizations, especially the Babylonians and the Greeks, for its seasonal and astrological associations.

Capricornus Rise and Set Timetable

TimeElevation
Capricornus rise16:21
Sunset17:3813°
Civil sunset18:0618°
Astronomical observing session begins18:3723°
Moonrise, 91.3% illuminated 18:4824°
Capricornus transit21:2736°
Capricornus set02:33
Astronomical observing session ends03:39-13°
Moonset08:20-65°

Track Capricornus Position Throughout the Night

← 31 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe Capricornus changing position in the night sky.

Nebulae in the constellation Capricornus

M30

Globular Cluster

M30
↗ 18:37 ↘ 03:39 ↑ 29°
☼ 7.1 ✣ 9.00"
A globular cluster containing hundreds of thousands of stars, located approximately 26,000 light-years away in the constellation Capricornus.
More about M30

Annual motion of Capricornus

Time
DateTue, 1 September 2026
Twilight start19:08
Twilight end03:04
Twilight duration8h 56m
Rise16:17
Set02:29
Elevation at transit36°
Transit time21:23
Equatorial coordinatesRA: 20h 57m 36s", Dec: -16° 50' 09s
Magnitude-
Constellation
The graph illustrates the constellation’s annual visibility pattern and its daily rise, set, and transit times throughout the year.
The vertical axis shows the hours of the day, while the horizontal axis spans the days of the year.
The reddish area marks when the constellation is above the horizon. The white line shows when it reaches its highest point in the sky. View detailed visibility information in a table with rise, transit, and set times for each date.

Acknowledgements

We gratefully acknowledge the International Astronomical Union (IAU) for defining and standardizing the official constellation boundaries used in celestial mapping.

Special thanks to Sky & Telescope Magazine and contributors Roger Sinnott and Rick Fienberg for producing the charts and tables. Alan MacRobert’s constellation patterns were influenced by the work of H. A. Rey and adjusted to align with earlier traditions.