Triangulum lies just Andromeda's left leg. You can easily find the snug isosceles triangle formed three stars with the third and fourth magnitudes. Though the origin of Triangulum isn't known distinctly, has fairly long history registered in the Ptolemaic constellation. Now, the shape of constellation is often applied a set square. The constellation contains one of Messier's objects, a faint face-on spiral galaxy of M33, it's one of major deep sky objects in the autumn skies like the Andromeda Galaxy (M31).
Galaxies In Triangulum
M33 (NGC598)
M33 (NGC598) is a very large (about two times of the Moon) but quite faint face-on spiral galaxy at just Andromeda's left foot. The galaxy is about 2.6 million light years away, and one of main members consist of the Local group of galaxies, that includes our Galaxy. Visible magnitude of the galaxy is about 6.7, but it's probable to recognize that with naked eyes under the clear and dark sky. It's considered that M33 and our Galaxy have about same shapes, and plenty of diffused nebulae or globular clusters have been discovered in M33, many astronomers are researching into the galaxy in detail.
NGC 925
NGC925 is a bared galaxy positioned about 2 degrees east of gamma Tri that forms the base of the constellation of Triangulum. The galaxy has an expectedly large major axis of 10 arc minutes, but it's very dimmed so you might be needed fairly larger telescopes to appreciate the light of this minor outer galaxy. Although this picture hasn't been shown clearly, somehow you can see a bared structure stretched in east-west direction and two arms coiled up loosely. And there are several dots of nebulosities along the arms. The constellation of Triangulum is famous for a major galaxy of M33, but the compact galaxy of NGC925 is another scenic spot in this small constellation.
NGC 604
This festively colorful nebula, called NGC 604, is one of the largest known seething cauldrons of star birth seen in a nearby galaxy. NGC 604 is similar to familiar star-birth regions in our Milky Way galaxy, such as the Orion Nebula, but it is vastly larger in extent and contains many more recently formed stars. This monstrous star-birth region contains more than 200 brilliant blue stars within a cloud of glowing gases some 1,300 light-years across, nearly 100 times the size of the Orion Nebula.
NGC 672
NGC 672 (at the top) and IC 1727 (at the bottom) are interacting galaxies some 18 million light years distant. From each other they are separated by only 88,000 light years- little more than their own diameters. While outside of the "Local Group" of galaxies, these two are close enough to begin to resolve some of the brighter stellar associations and dust lanes. This gives the galaxies their granulated and bumpy appearence. By examining these galaxies in the radio wavelengths of light, astronomers have detected a large envelope of gas that surround these galactic friends.
IC 1727
Galaxy IC 1727 In the constellation of Triangulum. The galaxies Co-ordinates are Right Ascension: 01 47 30.0 & Declination: +27 20 00. The visual magnitude of the galaxy is 11.5.
Planetary Stars In Triangulum
HD 13189 (F7 V)
Parent Star: HD 13189 (F7 V) in the constellation of Triangulum is located at a distance of 603.4 Light Years from our Solar system. Co-ordinates of Right Ascension: 02 09 40.1717 & Declination: +32 18 59.169. The apparent Magnitude of the star is 7.57. The Inner Edge of Habitability Zone is 29.98 AU & the Outer Edge of Habitability Zone: 93.41 AU. Orbiting around HD 13189 is planet HD 13189 b the planet is believed to be a Brown Dwarf planet and its exitence has been confirmed. The Planets Appearance is brown Haze. The planet is positioned outside of habitability zone at mean orbital distance of 1.85 ± 0.35 AU. The planet Orbits around the star every 471.6 ± 6 Days and was discovered by Hatzes and Gunther in 2005.
