NGC 4559

Also Known as: Caldwell 36, PGC 42002, UGC 7766

Object Type: Intermediate Spiral Galaxy

Constellation: Coma Berenices

Distance from Earth: 29 million light years

Apparent Magnitude: 10.4

Coordinates: RA 12H 35M 57.6285S DEC 27 deg 57 min 35.851 sec

Actual Size: 90,000 light years

Apparent Dimensions: 10.7 arc-minutes x 4.4 arc-minutes

Discovered by: On 11 April William Herschel discovered a bright nebula and cataloged it as I 92.
He logged: «Very bright, very Large, much extended, north preceding, south following, 10 or 12' long, 4 stars in it.» [463] John Herschel listed it as number 1352 in his «Slough Catalogue» from 1833.
He made three observations and described it as «very large, gradually brighter in the middle, but not to a nucleus, much extended, has 3 stars south following. By a diagram, the southern end is broader than the northern, giving it a clubbed appearance.» [466] Dreyer added this nebula as NGC 4559 to his «New General Catalogue» of 1888.
On 23 March 1903 German astronomer Max Wolf examined photo plates with the 16-inch Bruce reflector at Koenigstuhl Observatory, Heidelberg and found numerous I-II regions and/or star clouds within NGC 4559 (IC 3550, 3551, 3552, 3555, 3563, 3564) plus two small neighboring galaxies (IC 3592 and 3593

Description: NGC 4559 is a galaxy in Coma Berenices. It is classified as an intermediate galaxy, being midway between a barred spiral and and regular spiral galaxy.
It also has a weak inner ring structure. NGC 4559 is a HII Galaxy of morphological type SABcd. It shows bright star-forming regions and dust lanes in its extensive arms.
NGC 4559 is a member of the Coma I group and several larger groups [CHM2007] LDC 709 and LDC 867.
IC 3592 is also known as NGC 4559A - but it is much more distant (at 334 million light years) than the main NGC 4559 galaxy and is not interacting.

Click Below Image(s) for Full Size:

NGC 4559 is a Spiral Galaxy in the Coma Berenices constellation. NGC 4559 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere.
Given its visual magnitude, NGC 4559 is visible with the help of a binocular with a 80mm aperture or a small telescope.

Platesolve

NGC 4559 Galaxy with IC 3592 and IC 3598

NGC 4559 Galaxy

Imaging Details
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