The Perseus cluster (Abell 426) is a cluster of galaxies in the constellation Perseus. It has a recession speed of 5,366 km/s and a diameter of 863′....

Perseus is a constellation in the northern sky, named after the Greek mythological hero Perseus. It is one of the 48 ancient constellations listed by...

constellation Perseus. Both visible to the naked eye, NGC 869 and NGC 884 lie at a distance of about 7,500 light-years (2,300 pc) in the Perseus Arm of the...

other symbols. In Greek mythology, Perseus (US: /ˈpɜːr.si.əs/ , UK: /ˈpɜː.sjuːs/; Greek: Περσεύς, translit. Perseús) is the legendary founder of the Perseid...

as Perseus A or Caldwell 24) is a type 1.5 Seyfert galaxy located around 237 million light-years away in the direction of the constellation Perseus. NGC...

Phoenix Cluster; the heating mechanism expected to be produced by the central black hole being inadequate to create a feedback (in contrast to the Perseus and...

of five low-luminosity active galactic nuclei at the centre of the Perseus cluster". Monthly Notices of the Royal Astronomical Society. 465 (4): 3943–3948...

of z = 0.0189, it is one of the brightest objects detected in the Perseus Cluster at both radio frequencies and X-ray energies, and also the fourth closest...

cluster (HST). Magnifying the distant universe through MACS J0454.1-0300. Turbulence may prevent galaxy clusters from cooling; illustrated: Perseus Cluster...

Antarctica Perseus (constellation), a constellation in the northern sky Perseus Arm, an arm of the Milky Way Perseus Cluster, a galaxy cluster Perseus–Pisces...

The Perseus Arm is one of two major spiral arms of the Milky Way galaxy. The second major arm is called the Scutum–Centaurus Arm. The Perseus Arm begins...

constellation Perseus. The galaxy was discovered by astronomer William Herschel on October 17, 1786 and is a member of the Perseus Cluster. List of NGC...

the constellation Perseus. It was discovered by astronomer Heinrich d'Arrest on February 14, 1863 and is a member of the Perseus Cluster. List of NGC objects...

1272 has an active nucleus and is the second brightest member of the Perseus Cluster after NGC 1275. NGC 1272 has two radio jets which are powered by an...

constellation Perseus. It was discovered by astronomer Heinrich d'Arrest on February 14, 1863. NGC 1270 is a member of the Perseus Cluster and has an estimated...

1277 is a lenticular galaxy in the constellation of Perseus. It is a member of the Perseus Cluster of galaxies and is located approximately 73 Mpc (megaparsecs)...

the constellation Perseus. It was discovered by astronomer Lewis Swift on Oct 21, 1886. NGC 1250 is a member of the Perseus Cluster. List of NGC objects...

a galaxy cluster. The gas consists mainly of ionized hydrogen and helium and accounts for most of the baryonic material in galaxy clusters. The ICM is...

constellation Perseus. It was discovered by astronomer William Herschel on October 17, 1786. NGC 1293 is a member of the Perseus Cluster. List of NGC objects...

S.; et al. (2010). "Magic Gamma-Ray Telescope observation of the Perseus Cluster of galaxies: Implications for cosmic rays, dark matter, and NGC 1275"...

and is part of the Perseus–Pegasus Filament which stretches for roughly a billion light years. The main clusters of the Perseus–Pisces Supercluster are...

Riley class 1 radio galaxy located in the constellation Perseus, a member of the Perseus Cluster. "NASA/IPAC Extragalactic Database". Results for 3C 83...

constellation Perseus. The galaxy was discovered by astronomer Guillaume Bigourdan on November 14, 1884. NGC 1271 is a member of the Perseus Cluster and has...

constellation Perseus. It was discovered by astronomer Guillaume Bigourdan on 19 October 1884. NGC 1260 is a member of the Perseus Cluster and forms a tight...

Perseus OB1 is an OB association in the Northern Celestial Hemisphere in the constellation Perseus. It is centered around the double cluster (NGC 869 and...

(also known as M34, NGC 1039, or the Spiral Cluster) is a large and relatively near open cluster in Perseus. It was probably discovered by Giovanni Batista...

the Milky Way in the constellation Perseus. It has diameter of about 110,000 ly, and is a member of the Perseus Cluster. It was discovered on December 12...

the constellation Perseus. NGC 1281 was discovered by astronomer John Dreyer on December 12, 1876. It is a member of the Perseus Cluster. Like NGC 1277 and...

constellation Perseus. NGC 1274 was discovered by astronomer Lawrence Parsons on December 4, 1875. It is a member of the Perseus Cluster. List of NGC objects...

1884 and was later listed as IC 1907. NGC 1278 is a member of the Perseus Cluster and is a low-luminosity AGN (LLAGN). One supernova, SN 2016ajf (type Ia...