The acronym NGC stands for "New General Catalogue" and usually precedes a number in the catalogue, like NGC 4258 for example. The catalogue refers to objects which are extended and distinctly non-star like in nature.
NGC 6872 and IC 4970
This image is a three-colour composite, this time reproduced from one blue (B), one green-yellow (V) and one red (R) exposure, obtained with FORS1 at ANTU in the morning of March 29, 1999. The field size is again 6.8×6.8 arcmin 2.
NGC 253, a starburst galaxy
On the left, you see an image of the spiral galaxy NGC 253, taken with a ground-based telescope. The galaxy is located about 8 million light-years away in the constellation Sculptor.
In most planetaries (like the famous Cat's Eye nebula, and the less famous but also cool NGC 6826) the outer halo slams into material floating in interstellar space, causing it to get all clumpy or form a bright rim as the surrounding matter gets plowed up.
NGC 4755 is located at R.A.: 12:53.6 and Dec: -60:20
This cluster was discovered by Nicolas Louis de Lacaille from an observing station in South Africa during his stay there from 1751 to 1752.
The NGC (deep sky) Objects
Once you click onto a particular link use the "Find" feature of
your browser to locate the NGC object on that page.
NGC 55 ...
The large cluster NGC 6755 in Aquila has been converted into a giant puzzle by the vanished De sitter clade
A former Keter cluster brain which has disappeared, leaving a mysterious network of wormholes behind.
NGC 4889 is a member of the Coma Galaxy Cluster, which lies about 300 million light-years away. But the quasar 3C 273 is 2 billion light-years away. While a little fainter than NGC 4889, it should be barely visible in your 5-inch if you have a dark sky.
NGC 7380, the Wizard Nebula
Credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona
This beautiful image shows the beautiful open star cluster NGC 7380, also known as the Wizard Nebula. [Read the Full 2013 Halloween Story Here] ...
An acronym for New General Catalog of Nebulae and Clusters of Stars, first compiled in 1888 by Danish astronomer J.L.E. Dreyer at Armagh Observatory, Ireland. Today the catalog contains 7840 deep-sky objects.
NGC - New General Catalogue, a 19th-century compendium of deep-sky objects such as galaxies, globular clusters, and nebulae.
NGC Objects - deep-sky objects such as galaxies, globular clusters, and nebulae included in the New General Catalogue.
NGC. New General Catalogue. A list of some 7000 plus deep-sky objects.
Nodes. The points at which the orbit of the Moon, a planet or a comet intersect with the plane of the ecliptic; south to north (Ascending Node), north to south (Descending Node).
Finest NGC Objects (RASC Observing List)
This list contains selection of 109 targets out of 7840 New General Catalogue (NGC) objects as well as one (1) from a supplementary Index Catalogue (IC) of 5386 objects.
NGC 253, a nearly edge-on spiral galaxy (type Sc) in the constellation Sculptor. NGC 253 lies about 8 million light years away. © European Southern Observatory Wide Field Imager, Max-Planck-Institut für Astronomie, Osservatorio Astronomico di Capodimonte.
NGC 6333 or Messier 9 is a globular cluster, one of the nearest ones to the centre of the Milky Way. It is about 25,800 light-years distant from Earth. NGC 6254 or Messier 10 is another globular cluster about 14,300 light-years distant.
NGC 613 is a barred spiral galaxy in the southern constellation Sculptor. The galaxy is inclined by 32° and, contrary to most barred spirals, has many arms that give it a tentacular appearance.
The NGC (New General Catalog) is a list of over 13,000 deep-sky celestial objects. It was developed in 1888. For example, the Great Nebula in Orion is NCG 1976 (and M42). NGC4414 (pictured above) is a spiral galaxy 60 million light-years away.
NGC 4365 with measurements provided by 2MASS
NGC 5447 = M101 with data taken from the catalog of Munoz-Mateos et al., ApJ 658, 1006 (2007)
Looking for sample spectra? A Spectral Library of Galaxies, Star Clusters and Stars may have what you need.
More about Planetary Nebulare from George Jacoby's (b& w) Planetary Nebula Gallery.
Planetary Nebulae at the SED's Messier Gallery.
The Planetary Nebula Observer's HomePage includes more links to Planetary Nebula Resources.
The Local Group is the cluster of galaxies to which we belong. It is a group of about 30 galaxies that is about 5 million light-years across. The largest of the galaxies are Andromeda galaxy, Triangulum, and our Milky Way.
NGC 604 is even larger than the Tarantula nebula at about 1,300 light-years across, although it contains slightly fewer stars. It is one of the largest H II regions in the Local Group.
Current issues in studies of H II regions ...
NGC 5466 is a large but quite dim globular cluster. It's found nine degrees north of Arcturus and one and a half degrees west.
Brightest Stars: Arcturus, Nekkar (a.k.a. Merez), Seginus (a.k.a. Haris), Izar ...
NGC 869 has overall magnitude + 5.3 and NGC 884 magnitude + 6.1.
Double Double (Epsilon Lyrae) Quadruple star system near Vega (RA 18h 44m.3 dec. +39°40'), with two well-matched pairs separated by 208" (3'.5), making the star a naked-eye double.
NGC 4151 is the brightest Seyfert galaxy. Its coordinates are RA = 12h 10.5m, dec = +39 ° 24', and it can be found below the Big Dipper in Canes Venatici. At magnitude 10"12 (it is variable), it should be visible in an 8-inch telescope, but it will be challenging to find. Its distance is 13.5 Mpc.
3. Galaxy NGC 4442 is 120 Mpc away. If the Hubble Constant is 68 km/s/Mpc, how fast should NGC 4442 be moving due to the expansion of the Universe?
Solution: Another "pop into formula"
v = Ho d
v = 68 x 120
v = 8200 km/s ...
The galaxies NGC 3628 (top), M66 (lower left), and M65 (lower right) form the Leo Triplet. Gravitational encounters with the other two galaxies have "pumped up" NGC 3628, triggering the birth of millions of new stars and pulling out a tail of stars that stretches across a quarter-million light-years.
The protostar NGC 1333 IRS 4A (gray spot) has ejected two supersonic jets whose Doppler velocities are indicated by the false colors (blue = approaching, red = receding) in this VLA image of a 43 GHz SiO (silicon monoxide) line. SiO is an excellent tracer of shocked molecular gas. Image credit ...
Spiral Galaxy, NGC 4414
The majestic galaxy, NGC 4414, is located 60 million light-years away. Like the Milky Way, NGC 4414 is a giant spiral-shaped disk of stars, with a bulbous central hub of older yellow and red stars.
Open star cluster NGC 6025
This nice little constellation is located close to circumpolar regions of the south pole of the sky. It is lying between DECL=-60 degrees and DECL=-70 degrees and RA=17h and RA=15h.
Elliptical Galaxy NGC 1132. This image of NGC 1132 was taken with Hubble's Advanced Camera for Surveys. This elliptical galaxy reveals the final result of what may have been a group of galaxies that merged together in the recent past.
Slee identify NGC 4486 (M87) and NGC 5128 as extragalactic radio sources,
1953 - Gerard de Vaucouleurs discovers that the galaxies within approximately 200 million light years of the Virgo cluster are confined to a giant supercluster disk, ...
It lies at the southern edge of (20:3:37.4+29:53:48.5, ICRS 2000.0) of Constellation Cygnus, the Swan -- northeast of Albireo (Beta1 Cygni); and south of Sadr (Gamma Cygni), the Crescent Nebula (NGC 6888), and the open star cluster NGC 6871; ...
97 micrometres due to solid ammonia on interstellar grains in the Becklin-Neugebauer object and probably in NGC 2264-IR as well. This detection helps explain the physical shape of previously poorly-understood related ice absorption lines.
Orton et al.
This stellar swarm is M80 (NGC 6093), one of the densest of the 147 known globular star clusters in the Milky Way galaxy. Located about 28,000 light-years from Earth, M80 contains hundreds of thousands of stars, all held together by their mutual gravitational attraction.
This NASA Hubble Space Telescope image shows one of the most complex planetary nebulae ever seen, NGC 6543, nicknamed the "Cat's Eye Nebula." Hubble reveals surprisingly intricate structures including concentric gas shells, jets of high-speed gas and unusual shock-induced knots of gas.
give a Cepheid distance to NGC 4258, where Herrnstein et al. found a distance of 7.2 Mpc based on observing the velocity and angular radius of a disk of masers around the nucleus, and both the angular velocity and the centripetal acceleration of the masers. Cepheids in NGC 4258 were 10.
There are many interesting celestial objects in this large constellation, including globular clusters (M2 and M72), planetary nebulae (NGC 7009 and NGC 7293), the star group M73, a double star (zeta Aqr).
Three Boötes double stars, globular cluster NGC 5986, and elliptical galaxy NGC 5846
The Jewel Box Cluster (NGC 4755), spiral galaxy M102, and globular cluster Palomar 5
Summer Observing Targets for Small Telescopes
Summer Observing Targets for Large Telescopes ...
The middle image shows an infrared view of the barred spiral galaxy NGC 1365. In this image you can more clearly see the the bright areas of star formation, as well as young star clusters. Taken in 1999, this image shows the improvement in resolution since the days of IRAS (sixteen years earlier).
Carina also contains NGC 2516, a beautiful globular cluster, best in binoculars and NGC 2808, a naked-eye globular cluster. The prow of the ship contains four stars that are often called the False Cross.
The above graph shows the brightness (or intensity) of far-ultraviolet light (vertical axis) as a function of wavelength (horizontal axis) for the central star of a planetary nebula known as NGC 1535. Believe it or not, this "squiggly line" is what astronomers call a spectrum! ...
New General Catalogue (NGC)
The New General Catalog (NGC) is a list of over 13,000 deep-sky celestial objects, such as galaxies, globular clusters and nebulae. It was developed in 1888 by the astronomer J.L.E. Dreyer, and often celestial objects are referred to by their list number, e.g.
HERBIG-HARO OBJECT - Small bright nebula in a star-forming region, named after the American astronomer George Herbig and Guillermo Haro who discovered the first three such objects in 1946-1947 in images of the nebula NGC 1999 in Orion.
NGC 2261, Hubble's Variable Nebula - APOD
Cepheid variables and Hubble - WMAP
Henrietta Leavitt - PBS
The Hubble Constant
"A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae. The Expanding Universe"
Hubble and the Expansion of the Universe - Berkeley ...
It also contains many star clusters, such as Messier 30, as well as the elliptical galaxy NGC 7103 and the spiral galaxy NGC 6907. The Capricornids meteor shower is also a feature of this constellation, peaking annually around July 30th when up to 30 meteors per hour can be seen in the night sky.
Star-forming region in the nebula NGC 604 (in the galaxy M33).
In each of these examples there is strong evidence that stars are being born in the region shown in the image; presumably, at least in some of the cases, attendant solar systems are being formed also.
He called it the New General Catalogue. More information was added in the 20 next years such that its listings reached close to 15,000 objects. Astronomers refer to galaxies and nebulae by their NGC numbers. For example, the Crab Nebula is called NGC1952.
In contrast, the Andromeda galaxy, which is also known as M31 and as NGC 224, is much small on the sky, less than three degrees in length, which is larger than the Moon or the Sun. It can only be seen when the sky is very clear, and generally only the inner bulge of the galaxy is visible.
Anne's Image of the Day: The Dragonfish Nebula
Large Ocean Inside Saturn's Moon Enceladus
Anne's Image of the Day: Dwarf Galaxy NGC 7320
Anne's Image of the Day: Herbig-Haro objects HH1 and HH2
Anne's Image of the Day: Spiral Galaxy IC 2560 ...
The second, known as NGC 5195, is interacting with M51. The outer regions of the two galaxies actually touch each other. M51 is located about 37 million light-years from Earth. Under dark skies, it is an easy target for small telescopes.
Pressing the scroll keys on the Autostar told me further information about the Helix Nebula including its designation as NGC 7293, that it is a planetary nebula, that it is positionally at RA 22:29.6 and Dec. -20 deg. 48 min., that it is in the constellation Aquarius, has a magnitude of 6.