NGC 47
Encyclopedia
NGC 47 is a barred spiral galaxy
in the constellation
Cetus
, discovered in 1886 by Ernst Wilhelm Leberecht Tempel
. Its alternate name NGC 58 is due to the observation by Lewis Swift, who was unaware that Tempel had already discovered the object earlier. It appears as a small, faint spiral nebula with a bright core and is slightly oval.
It is approximately 236 million light years from Earth
, measured by way of a generic "redshift estimate".
Barred spiral galaxy
A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. Bars are found in approximately two-thirds of all spiral galaxies...
in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Cetus
Cetus
Cetus is a constellation. Its name refers to Cetus, a sea monster in Greek mythology, although it is often called 'the whale' today. Cetus is located in the region of the sky that contains other water-related constellations such as Aquarius, Pisces, and Eridanus.-Ecliptic:Although Cetus is not...
, discovered in 1886 by Ernst Wilhelm Leberecht Tempel
Ernst Wilhelm Leberecht Tempel
Ernst Wilhelm Leberecht Tempel , normally known as Wilhelm Tempel, was a German astronomer who worked in Marseille until the outbreak of the Franco-Prussian War in 1870, then later moved to Italy....
. Its alternate name NGC 58 is due to the observation by Lewis Swift, who was unaware that Tempel had already discovered the object earlier. It appears as a small, faint spiral nebula with a bright core and is slightly oval.
It is approximately 236 million light years from Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
, measured by way of a generic "redshift estimate".