NGC 5774 is an
intermediate spiral galaxy approximately
71 million light-year
A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (), or 5.88 trillion miles ().One trillion here is taken to be 1012 ...
s away from Earth 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 origins of the e ...
of
Virgo.
It was discovered by Irish engineer
Bindon Stoney on April 26, 1851.
NGC 5774 belongs to the
NGC 5775 Group of galaxies—together with nearby
NGC 5775,
IC 1070, and others—which is part of the
Virgo III Groups
The Virgo III Groups, or Virgo III Cloud, are a series of at least 75 galactic clusters and individual galaxies stretching approximately off the eastern edge of the Virgo Supercluster. Parts of it are in the constellations Virgo, Libra, and Serp ...
strung out to the east of the
Virgo Supercluster of galaxies.
It has been classified as a
"low surface brightness" (LSB) galaxy, but its central surface brightness is 5 times brighter than the brightest LSB galaxies.
It has a multiple spiral pattern with bright blue knotty structure all along the arms.
It is an extremely low
star forming galaxy with five
X-ray sources plus three
ultraluminous X-ray source
An ultraluminous X-ray source (ULX) is an astronomical source of X-rays that is less luminous than an active galactic nucleus but is more consistently luminous than any known stellar process (over 1039 erg/s, or 1032 watts), assuming that it radiat ...
candidates.
Interaction with NGC 5775
NGC 5774 is interacting with the nearby spiral galaxy
NGC 5775 in the form of two connecting H I bridges through which the gas is travelling from NGC 5774 to NGC 5775.
Faint optical emission, as well as radio continuum emission, are also present along the bridges.
It is possible that star formation is occurring between the galaxies.
This system may be in the early stages of a
merger
Mergers and acquisitions (M&A) are business transactions in which the ownership of companies, other business organizations, or their operating units are transferred to or consolidated with another company or business organization. As an aspect ...
.
See also
*
Intermediate spiral galaxy
*
List of NGC objects (5001–6000)
*
Low Surface Brightness galaxy
A low-surface-brightness galaxy, or LSB galaxy, is a diffuse galaxy with a surface brightness that, when viewed from Earth, is at least one magnitude lower than the ambient night sky.
Most LSBs are dwarf galaxies, and most of their baryonic mat ...
Gallery
File:NGC5774 - SDSS DR14.jpg, NGC 5774 (SDSS DR14)
References
External links
*
SEDS
{{DEFAULTSORT:NGC 5774
Intermediate spiral galaxies
Virgo (constellation)
5774
53231
Astronomical objects discovered in 1851
Discoveries by Bindon Blood Stoney