NGC4136 is a

barred spiral galaxy A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. Bars are found in about two thirds of all spiral galaxies in the local universe, and generally affect both the motions of stars and interstellar gas ...

in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ...

Coma Berenices Coma Berenices is an ancient asterism in the northern sky, which has been defined as one of the 88 modern constellations. It is in the direction of the fourth galactic quadrant, between Leo and Boötes, and it is visible in both hemispher ...

. Its velocity with respect to the

cosmic microwave background The cosmic microwave background (CMB, CMBR), or relic radiation, is microwave radiation that fills all space in the observable universe. With a standard optical telescope, the background space between stars and galaxies is almost completely dar ...

is , which corresponds to a

Hubble distance Hubble's law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther a galaxy is from the Earth, the faster ...

of . Additionally, seven ''non-redshift'' measurements give a distance of . It was discovered by German-British astronomer

William Herschel Frederick William Herschel ( ; ; 15 November 1738 – 25 August 1822) was a German-British astronomer and composer. He frequently collaborated with his younger sister and fellow astronomer Caroline Herschel. Born in the Electorate of Hanover ...

on 13 March 1785.

Morphology

Eskridge, Frogel, and Pogge published a paper in 2002 describing the morphology of 205 closely spaced

spiral In mathematics, a spiral is a curve which emanates from a point, moving further away as it revolves around the point. It is a subtype of whorled patterns, a broad group that also includes concentric objects. Two-dimensional A two-dimension ...

lenticular Lenticular is an adjective often relating to Lens (optics), lenses. It may refer to: *A term used with two meanings in botany: see *Lenticular cloud, a lens-shaped cloud *Lenticular galaxy, a lens-shaped galaxy *Lenticular (geology), adjective de ...

galaxies. The observations were made in the H-band of the

infrared Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those ...

and in the B-band (blue). Eskridge and colleagues described NGC 4136 as follows:

NGC 4274 Group

NGC 4136 is a member of the NGC 4274 group (also known as LGG 279) which has at least 19 galaxies, including NGC 4020, NGC 4062, NGC 4173, NGC 4203,

NGC 4245 NGC 4245 is a barred lenticular galaxy with a ring galaxy, ring located in the constellation Coma Berenices (constellation), Coma Berenices. It was discovered on March 13, 1785, by the astronomer William Herschel. It is a member of the Coma I Gro ...

, NGC 4251, NGC 4274, NGC 4278, NGC 4283, NGC 4310,

NGC 4314 NGC 4314 is a barred spiral galaxy approximately 53 million light-years away in the northern constellation of Coma Berenices. It is positioned around 3° to the north and slightly west of the star Gamma Comae Berenices and is visible in a sm ...

, NGC 4359,

NGC 4414 NGC 4414, also known as the Dusty Spiral Galaxy, is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It was discovered by Germany, German-British astronomer William Herschel on 13 March 1785. NGC ...

, NGC 4509, NGC 4525, UGC 7300, and MCG+05-29-066.

Supernova

One

supernova A supernova (: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last stellar evolution, evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion ...

has been observed in NGC 4136: SN1941C (type unknown, mag. 16.8) was discovered by Rebecca B. Jones on 16 April 1941.

References

External links

* {{NGC45 4136 038618 12067+3012 07134 +05-29-025 Coma Berenices 17850313 Discoveries by William Herschel Barred spiral galaxies

Morphology

NGC 4274 Group

Supernova

See also

References

External links