triangulum (trī-an´-gū-lum)—the Triangle. (face East.)

Location.—A line drawn from the star γ Pegasi to Algol in Perseus passes through β Trianguli.

The triangle is clearly defined and a beautiful figure. It lies just below Andromeda, and above Aries.

Triangulum is a very ancient constellation, being formerly named Deltoton, from the Greek letter Delta Δ.

It was in this locality that Piazzi discovered the asteroid Ceres, January 1, 1800.

α Trianguli is sometimes called "Caput Trianguli."

α and β Trianguli were known as "The Scale Beam." According to Argelander the constellation contains fifteen stars.

The Triangle has been likened to the Trinity, and the Mitre of St. Peter.


the Planets.

ursa Major (er´sa Mā´-jor)—the Great Bear. (face North.)