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NGC 4444 is an intermediate spiral galaxy in the constellation Centaurus.The morphological classification places it midway on the continuum between a barred spiral (SB) and an unbarred spiral (SA), with an inner region that lies between a ring-like (r) and a purely spiral form (s), and medium- (b) to loosely wound (c) outer spiral arms.
The following list shows specific aeronautical transponder codes, and ranges of codes, that have been used for specific purposes in various countries.Traditionally, each country has allocated transponder codes by their own scheme with little commonality across borders.
Sodium tetraphenylborate is the organic compound with the formula NaB(C 6 H 5) 4.It is a salt, wherein the anion consists of four phenyl rings bonded to boron. This white crystalline solid is used to prepare other tetraphenylborate salts, which are often highly soluble in organic solvents.
NGC 4041 is the New General Catalogue identifier for a spiral galaxy in the northern circumpolar constellation of Ursa Major.It is located an estimated 70 million light years from the Sun. [3] The morphological classification of SA(rs)bc [5] indicates this is a spiral galaxy the lacks a bar; the 'rs' means it has a weakly-formed ring structure, and the 'bc' indicates the spiral arms are ...
The Hubble sequence is a morphological classification scheme for galaxies published by Edwin Hubble in 1926. [1] [2] [3] [4] It is often colloquially known as the ...
NGC 4414, also known as the Dusty Spiral Galaxy, [3] is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices.It was discovered by German-British astronomer William Herschel on 13 March 1785.
The location of NGC 4650A (circled in blue) NGC 4650A is a lenticular galaxy [5] of the rare polar-ring [6] type, located in the southern constellation of Centaurus.It has an apparent visual magnitude of 13.3 and spans an angular size of 1.6′ × 0.8′. [5]
NGC 4293 is a lenticular galaxy in the northern constellation of Coma Berenices.It was discovered by English astronomer William Herschel on March 14, 1784, who described it as "large, extended, resolvable, 6 or 7′ long".