NGC 595 — a diffuse nebula in the Triangulum Galaxy: NGC 595 is is a gigantic region of ionised hydrogen in the Triangulum Galaxy, about three million light-years away. The nebula was discovered by the German astronomer Heinrich Ludwig d'Arrest on 1 October 1864. This image is only a tiny part of the large wide-field image of the Triangulum Galaxy created by the NASA/ESA Hubble Space Telescope.

Name: NGC 595
Type: Local Universe : Nebula : Appearance : Emission : H II Region
Category: Nebulae
Constellation: Triangulum
Distance: 3 million light years
Release date: 7 January 2019, 18:00
Credit: NASA, ESA, and M. Durbin, J. Dalcanton, and B. F. Williams (University of Washington)

Stellar association IC 142: IC 142 is a region of ionised hydrogen and a large stellar association in the Triangulum Galaxy. A stellar association is a very loose cluster of stars that share a common origin, but have become gravitationally unbound and are slowly moving apart. Associations are primarily identified by their common movement vectors and ages. The region IC 142 was discovered on 28 October 1889 by astronomer Guillaume Bigourdan. This image is only a tiny part of the large wide-field image of the Triangulum Galaxy created by the NASA/ESA Hubble Space Telescope.

Name: IC 142
Type: Local Universe : Nebula : Appearance : Emission : H II Region
Category: Nebulae
Constellation: Triangulum
Distance: 3 million light years
Release date: 7 January 2019, 18:00
Credit: NASA, ESA, and M. Durbin, J. Dalcanton, and B. F. Williams (University of Washington)

Wide-field view of the Triangulum Galaxy showing the extent of the survey: This wide-field view shows the Triangulum Galaxy — also known as Messier 33 — as seen from the ground. The extent of the new huge mosaic created with the NASA/ESA Hubble Space Telescope is shown by the irregularly shaped region and the main image presented here by the rectangle within it.

Name: M 33, Messier 33
Type: Unspecified : Galaxy : Type : Spiral
Category: Galaxies
Distance: 3 million light years
Release date: 7 January 2019, 18:00
Credit: NASA, ESA, Digitized Sky Survey 2.Acknowledgement: Davide De Martin

Area around the Triangulum Galaxy (ground-based image): This wide-field view of the sky around the nearby galaxy Messier 33 was assembled from images forming part of the Digitized Sky Survey 2. The original photographs were taken over a period spanning more than 40 years, from 1949 until the early 1990s. As a result, some of the nearer stars in the picture have moved as a result of their significant proper motions. These show up as double dots — one red and one blue. The huge galaxy at the centre of the picture is tens or hundreds of thousands of times more distant than these nearby stars.

Name: M 33, Messier 33
Type: Local Universe : Galaxy : Type : Spiral
Category: Galaxies
Constellation: Triangulum
Distance: 3 million light years
Release date: 7 January 2019, 18:00
Credit: ESO/Digitized Sky Survey 2. Acknowledgement: Davide De Martin

Artist’s impression of distant quasar: This artist’s impression shows how J043947.08+163415.7, a very distant quasar powered by a supermassive black hole, may look close up. This object is by far the brightest quasar yet discovered in the early Universe.

Name: J043947.08+163415.7
Type: Early Universe : Galaxy : Activity : AGN : Quasar
Category: Quasars and Black Holes
Release date: 9 January 2019, 23:15
Credit: ESA/Hubble, NASA, M. Kornmesser

Hubble’s view on distant quasar: This image shows the distant quasar J043947.08+163415.7 as it was observed with the NASA/ESA Hubble Space Telescope. The quasar is one of the brightest objects in the early Universe. However, due to its distance it only became visible as its image was made brighter and larger by gravitational lensing. The system of the lensed images and the actual lens is so compact that Hubble is the only optical telescope able to resolve it.

Name: J043947.08+163415.7
Type: Early Universe : Galaxy : Activity : AGN : Quasar
Category: Cosmology
Release date: 9 January 2019, 23:15
Credit: NASA, ESA, X. Fan (University of Arizona)

The accidentally discovered galaxy Bedin I: This image, taken with Hubble’s Advanced Camera for Surveys shows a part the globular cluster NGC 6752. Behind the bright stars of the cluster a denser collection of faint stars is visible — a previously unknown dwarf spheroidal galaxy. This galaxy, nicknamed Bedin 1, is about 30 million light-years from Earth.

Name: Bedin I, NGC 6752
Type: Milky Way : Star : Grouping : Cluster : GlobularLocal Universe : Galaxy : Size : Dwarf
Category: GalaxiesStars
Constellation: Pavo
Distance: 30 million light years
Release date: 31 January 2019, 16:00
Credit: ESA/Hubble, NASA, Bedin et al.

Bedin 1 in NGC 6752: This composite image shows the location of the accidentally discovered dwarf galaxy Bedin 1 behind the globular cluster NGC 6752. The lower image, depicting the complete cluster, is a ground-based observation from the Digitized Sky Survey 2. The upper right image shows the full field of view of the NASA/ESA Hubble Space Telescope. The upper left one highlights the part containing the galaxy Bedin 1.

Name: Bedin I
Type: Local Universe : Galaxy : Size : Dwarf
Category: Galaxies
Distance: 30 million light years
Release date: 31 January 2019, 16:00
Credit: ESA/Hubble, NASA, Bedin et al., Digitized Sky Survey 2

Globular cluster NGC 6752: This image, taken with the NASA/ESA Hubble Space Telescope, shows a part of the globular cluster NGC 6752. The observations were made to study white dwarfs within it and to use these stars to measure the age of the globular cluster. Analysing the data, astronomers discovered a previously unknown galaxy behind the globular cluster. The galaxy, nicknamed Bedin 1, is visible as a collection of faint stars at the top left of the image.

Name: NGC 6752
Type: Milky Way : Star : Grouping : Cluster : Globular
Category: Stars
Constellation: Pavo
Release date: 31 January 2019, 16:00
Credit: ESA/Hubble, NASA, Bedin et al.

Wide-field view of NGC 6752 (ground-based view): This image shows a ground-based wide-field view of the region around NGC 6752 from the Digitized Sky Survey 2.

Name: NGC 6752
Type: Milky Way : Star : Grouping : Cluster : Globular
Category: Stars
Constellation: Pavo
Release date: 31 January 2019, 16:00
Credit: ESA/Digitized Sky Survey 2Acknowledgement: Davide De Martin

Wide-field view of NGC 6752 (ground-based view): This image shows a ground-based wide-field view of the region around NGC 6752 from the Digitized Sky Survey 2.

Name: NGC 6752
Type: Milky Way : Star : Grouping : Cluster : Globular
Category: Stars
Constellation: Pavo
Release date: 31 January 2019, 16:00
Credit: ESA/Digitized Sky Survey 2Acknowledgement: Davide De Martin

Wide-field view of NGC 6752 (ground-based view): This image shows a ground-based wide-field view of the region around NGC 6752 from the Digitized Sky Survey 2.

Name: NGC 6752
Type: Milky Way : Star : Grouping : Cluster : Globular
Category: Stars
Constellation: Pavo
Release date: 31 January 2019, 16:00
Credit: ESA/Digitized Sky Survey 2Acknowledgement: Davide De Martin

Wide-field view of NGC 6752 (ground-based view): This image shows a ground-based wide-field view of the region around NGC 6752 from the Digitized Sky Survey 2.

Name: NGC 6752
Type: Milky Way : Star : Grouping : Cluster : Globular
Category: Stars
Constellation: Pavo
Release date: 31 January 2019, 16:00
Credit: ESA/Digitized Sky Survey 2Acknowledgement: Davide De Martin