Messier – Page 7 – Crayford Manor House Astronomical Society Dartford

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Messier 43 (also known De Mairan's Nebula, and NGC 1982) is an H II region in the Orion constellation. It was discovered by Jean-Jacques Dortous de Mairan before 1731. The De Mairan's Nebula is part of the Orion Nebula, separated from the main nebula by a lane of dust. It is part of the much larger Orion Molecular Cloud Complex.

M43 is in many of our images of M42

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Julian Tworek's Images

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Triangulum galaxy, M33, NGC598

15th September 2018

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The Triangulum Galaxy (also known as NGC 598) is a spiral galaxy approximately 3 million light-years away in the constellation Triangulum. The galaxy is also sometimes informally referred to as the Pinwheel Galaxy by some amateur astronomy references and in some public outreach websites. However, the SIMBAD Astronomical Database, a professional astronomy database that contains formal designations for astronomical objects, indicates that the name "Pinwheel Galaxy" is used to refer to Messier 101, and several other amateur astronomy resources and other public outreach websites also identify Messier 101 by that name. It is the third largest galaxy in the Local Group, a group of galaxies that also contains the Milky Way Galaxy and the Andromeda Galaxy, and it may be a gravitationally bound companion of the Andromeda Galaxy. The Pisces Dwarf (LGS 3), one of the small Local Group member galaxies, is possibly a satellite of Triangulum.

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[caption id="" align="aligncenter" width="746"] M33CMHADS360s Image by CMHASD Members. 16" LX200. Total of 360s unfiltered[/caption]

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Images by Simon Dawes

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Images by Martin Crow

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Images by Julian Tworek

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Images by Neil Webster

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Images by Andrew Wilson

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Images by Leigh Slomer

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[caption id="" align="alignnone" width="240"] Image by Leigh Slomer Messier 33 The Triangulum Galaxy is a Galaxy in the constellation of Triangulum. This was a quick capture, taken amongst the fireworks in the run up to Guy Fawkes Night.[/caption]

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Images by Keith Rickard

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The Andromeda Galaxy, M31, NGC224

14th September 2018

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The Andromeda Galaxy (also known as M31, or NGC 224 and often referred to as the Great Andromeda Nebula) is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. It is the nearest spiral galaxy to our own, the Milky Way. As it is visible as a faint smudge on a moonless night, it is one of the farthest objects visible to the naked eye, and can be seen even from urban areas with binoculars.

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Images by Leigh Slomer

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[caption id="" align="aligncenter" width="800"] M31 - Leight Slomer20200826_205920 Image by Leigh Slomer Stacked from 30 x 2 minute light frames at ISO 1600 with 20 dark and 64 flat frames. Taken using a Skywatcher Evostar 72ed Pro telescope, a Canon Eos 250d astro modified dslr and a CLS filter. Mounted on a Skywatcher HEQ5 Pro mount, unguided. Stacked with Deep Sky Stacker and processed in GIMP.[/caption]

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Images by Simon Dawes

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Images by Julian Tworek

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Images by Martin Crow

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Images by Honor Wheeler

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Images by Janice McClean

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The Eagle Nebula, M16, NGC6611

14th September 2018

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The Eagle Nebula (also known as M16 or NGC 6611), perhaps one of the most famous and easily recognized space objects, is a young open cluster of stars in the constellation Serpens, discovered by Jean-Philippe de Cheseaux in 1745-46. It is associated with a diffuse emission nebula, or H II region, which is catalogued as IC 4703. This region of active current star formation is about 7,000 light-years distant. The brightest star in the nebula has an apparent magnitude of 8.24, easily visible with good binoculars.

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Images by Debra Holton

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Images by Andrew Wilson

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Globular Cluster, M15, NGC7078

14th September 2018

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Globular Cluster M15 (also known as NGC 7078) is a globular cluster in the constellation Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Charles Messier's catalogue of comet-like objects in 1764. It is estimated to be 13.2 billion years old, one of the oldest globular clusters.

M15 is at a distance of about 33,600 light-years from Earth. It has an absolute magnitude of -9.2 which translates to a total luminosity of 360,000 times that of the Sun. Messier 15 is one of the most densely packed globulars known in the Milky Way galaxy.

Images by Simon Dawes

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Images by Neil Webster

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[caption id="" align="aligncenter" width="800"] Image by Neil Webster - details not provided[/caption]

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Globular Cluster, M14, NGC6402

14th September 2018

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Messier 14 (also known as NGC 6402) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier in 1764.

At a distance of about 30,000 light-years, M14 contains several hundred thousand stars. At an apparent magnitude of +7.6 it can be easily observed with binoculars. Medium-sized telescopes will show some hint of the individual stars of which the brightest is of magnitude +14.

The total luminosity of M14 is in the order of 400,000 times that of the Sun corresponding to an absolute magnitude of -9.12. The shape of the cluster is decidedly elongated. M14 is about 100 light-years across.

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Imaged by Debra Holton

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Globular Cluster, M12, NGC6218

14th September 2018

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M12 (also known as NGC 6218) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier on May 30, 1764.

Located roughly 3° from the cluster M10, M12 is about 16,000 light-years distant and has a spatial diameter of ~75 light-years. The brightest stars of M12 are of 12th magnitude. It is rather loosely packed for a globular and M12 was once thought to be a tightly concentrated open cluster.

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Images by Andrew Wilson

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Globular Cluster, M10, NGC6254

14th September 2018

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M10 (also known NGC 6254) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier on May 29, 1764, it was described as a "Nebula without stars."

M10 has an apparent diameter of some 20', about 2/3 the apparent diameter of the moon, which translates to a spatial diameter of 83 light-years at its estimated distance of 14,300 light-years. Viewed through medium sized telescopes it appears about half that size (8' to 9'), as its brighter core is only 35 light-years across.

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Images by Andrew Wilson

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Globular Cluster, M9, NGC6333

8th September 2018

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Messier 9 (also known NGC 6333) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier in 1764.

M9 is one of the nearer globular clusters to the centre of the Milky Way Galaxy with a distance of around 5,500 light-years. Its distance from Earth is 25,800 light-years. The total luminosity of this cluster is around 120,000 times that of the Sun, the absolute magnitude being -8.04.

The brightest individual stars in M9 are of apparent magnitude 13.5, making them visible in moderately sized telescopes. There have been 13 variable stars found in M9.

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Images by Andy Wilson

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The Lagoon Nebula, M8, NGC6523

8th September 2018

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The Lagoon Nebula (also known as M8 and NGC 6523) is a giant interstellar cloud, classified as an emission nebula and H II region, in the constellation Sagittarius. At an estimated distance of 4,100 light-years, the Lagoon is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes. In binoculars, the Lagoon is a distinct oval cloudlike patch with a definite core, like a pale celestial flower. The nebula has a fragile star cluster superimposed on it, making this one of the leading celestial sights of summer night skies.

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Image by Keith Rickard

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