Name a Star in the Triangulum Constellation

Modified: July 1, 2023     Author: International Star Registry

International Star registry 45th anniversary logo surrounded by stars.

The constellation Triangulum is a small but distinctive constellation located in the northern hemisphere. It is easily recognizable due to its triangular shape and its brightest star, Beta Trianguli, which shines with a brilliant white light. Triangulum is a relatively modern constellation, having been created in the 16th century by Polish astronomer Johannes Hevelius. 

If you’re searching for a unique and meaningful birthday gift for a girl, consider naming a star after her through the International Star Registry. This organization allows individuals to give a special name to a real star and receive a certificate, star chart, and detailed information about the star they have chosen. The named star will not be officially recognized by astronomers, but it can serve as a sentimental and memorable token for the recipient. When choosing a star to name, consider the constellation Triangulum. In this constellation, there are several bright stars that could make a perfect gift. One such star is the star Alpha Trianguli, a yellow giant located approximately 38 light-years away from Earth. Another option is the star Gamma Trianguli, a white dwarf located approximately 44 light-years away from Earth. The recipient of the gift will not only have a named star, but they will also have a deeper connection to the constellation Triangulum and its place in the night sky. Click here for more information.

In addition to its stars, Triangulum also contains several interesting deep-sky objects, including the Triangulum Galaxy, also known as Messier 33. This is a spiral galaxy located approximately 3 million light-years away from Earth and is one of the closest and brightest galaxies in the sky. The Triangulum Galaxy is an important target for astronomers studying the structure and evolution of spiral galaxies. Another notable deep-sky object in Triangulum is the open cluster NGC 6791, a loose cluster of stars located approximately 13,000 light-years away from Earth. This cluster is relatively old and is an interesting target for astronomers studying the properties of aging open clusters.  

The Triangulum constellation lies just south of Andromeda on the edge of the Milky Way.  Triangulum is a favorite place to buy a star package to name a star for architects, engineers, and mathematicians. This is because of its unique shape and nearly universal visibility. The constellation is quite small, and has no stars greater than a 3 magnitude. However, it lies in a beautiful part of the sky. It can be viewed from the North Pole to as far south as Australi and shares a border with Andromeda, Aries, Perseus and Pisces 

Symbol: Tri 

Right Ascension: 02:09 

Declination: 32 

Diameter (°): 6 

Area (square °): 132 

Opposition: Oct 28 

Size Rank: 78th 

Brightness Rank: 64th 

Genitive: Trianguli


Major or notable stars in Triangulum 

β Trianguli (Beta Trianguli) 

Mothallah – α Trianguli (Alpha Trianguli) 

γ Trianguli (Gamma Trianguli) 

δ Trianguli (Delta Trianguli) 

ι Trianguli (Iota Trianguli) 

ε Trianguli (Epsilon Trianguli) 

HD 13189 

HD 9446 


Deep Sky Objects in Triangulum 

Triangulum Galaxy – Messier 33 (M33, NGC 598) 

NGC 604 

NGC 595 

NGC 634 

NGC 925 

NGC 672 and IC 1727 

NGC 784 

NGC 953 


Mythology of the Constellation Triangulum 

Triangulum was included by the 2nd century astronomer Ptolemy in his original list of 48 constellations. It has had several names over the centuries.  The Babylonians saw the constellation as a Plough, and it shared one main star, Gamma Andromedae, with the constellation Andromeda. It was also said to represent the island of Sicily. The Latin Author Gaius Julius Hyginus called the constellation Sicilia, for the Sickle of Jupiter (Zeus). In one story, the Goddess Ceres begged Jupiter to place the group of stars in the sky in honor of her beloved island, Sicily.   

In the first century Marcus Manilius called this constellation Deltoton, or the Triangle Constellation named for the triangular Greek Letter Delta. “There follows, with two equal sides parted by one unequal, a sign seen flashing with three stars and named Deltoton, called after its likeness.” It was also called Deltoton by Cicero and by Eratosthenes, named after the Delta of the Nile of Egypt.  In the 16th century the Roman Catholic church saw it as the Miter of St. Peter, or a representation of the trinity. This conflicted with the Protestant view of Johann Bayer who said it represented the three known continents, Europe, Asia, and Africa.

In conclusion, naming a star as a birthday gift for a girl through the International Star Registry is a unique and memorable idea. Consider the constellation Triangulum and its bright stars and interesting deep-sky objects as a perfect way to honor a special occasion and celebrate the beauty of the night sky. The recipient will have a personal and sentimental connection to the stars, and a reminder of their special day that they can cherish for years to come. This gift is especially ideal for girls who are fascinated by astronomy and the mysteries of the universe. It is a gift that can bring joy and inspiration every time they look up at the stars. 


Q. What is Triangulum? 

A. Triangulum is the 78th constellation in size, occupying an area of 132 square degrees. 

Q. What is Beta Trianguli? 

A. The brightest star in the constellation is Beta Trianguli, with an apparent magnitude of 3.00. 

Q. Where do you find the Triangulum constellation and galaxy M33? 

A. Use the Great Square of Pegasus or the Andromeda Galaxy to help you find the Triangulum constellation and galaxy M33. 

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