A wide-field image of Perseus (ground-based image): A wide-field image of the constellation of Perseus imaged from the ground. Note that the comet is not shown in this image.

Name: Perseus
Type: Milky Way : Sky Phenomenon : Night Sky : Constellation
Category: Stars
Release date: 15 November 2007, 15:00
Credit: A. Fujii

Comet 17P/Holmes Hubble image 1: This image taken by the NASA/ESA Hubble Space Telescope reveals Comet Holmes's bright core. It shows the coma, the cloud of dust and gas encircling the comet. The image was taken 29 Oct.

Name: 17P/Holmes
Type: Solar System : Interplanetary Body : Comet
Category: Solar System
Release date: 15 November 2007, 15:00
Credit: NASA,ESA,  and H. Weaver (The Johns Hopkins University Applied Physics Laboratory)

Comet 17P/Holmes Hubble image 2: This image taken by the NASA/ESA Hubble Space Telescope reveals Comet Holmes's bright core. It shows the coma, the cloud of dust and gas encircling the comet. The image was taken 31 Oct.

Name: 17P/Holmes
Type: Solar System : Interplanetary Body : Comet
Category: Solar System
Release date: 15 November 2007, 15:00
Credit: NASA,ESA, and H. Weaver (The Johns Hopkins University Applied Physics Laboratory)

Comet 17P/Holmes Hubble image 3: This image taken by the NASA/ESA Hubble Space Telescope reveals Comet Holmes's bright core. It shows the coma, the cloud of dust and gas encircling the comet. The image was taken 4 Nov.

Name: 17P/Holmes
Type: Solar System : Interplanetary Body : Comet
Category: Solar System
Release date: 15 November 2007, 15:00
Credit: NASA,ESA, and H. Weaver (The Johns Hopkins University Applied Physics Laboratory)

Holiday wishes from the Hubble Space Telescope: In the new Hubble image of the galaxy M74 we can also see a smattering of bright pink regions decorating the spiral arms. These are huge, relatively short-lived, clouds of hydrogen gas which glow due to the strong radiation from hot, young stars embedded within them; glowing pink regions of ionized hydrogen (hydrogen that has lost its electrons). These regions of star formation show an excess of light at ultraviolet wavelengths and astronomers call them HII regions.

Name: M74, Phantom Galaxy
Type: Local Universe : Galaxy : Type : Spiral
Category: Galaxies
Constellation: Pisces
Distance: 25 million light years
Release date: 29 November 2007, 15:00
Credit: NASA, ESA, and The Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration

The Phantom Galaxy M74 from the DSS (ground-based image): An image of the region of sky around M74, the "Phantom Galaxy", from the Digitized Sky Survey 2. The field-of-view is approximately 2.8 x 2.8 degrees.

Name: Messier 74, Phantom Galaxy
Type: Local Universe : Galaxy : Type : Spiral
Category: Galaxies
Constellation: Pisces
Distance: 28 million light years
Release date: 29 November 2007, 15:00
Credit: NASA, ESA, and the Digitized Sky Survey 2. Acknowledgment: Davide De Martin (ESA/Hubble)

Wide-field image with Pisces (ground-based image): Wide-field image with the constellations of Pisces and Pegasus.

Name: Pegasus, Pisces
Type: Milky Way : Sky Phenomenon : Night Sky : Constellation
Category: Stars
Release date: 29 November 2007, 15:00
Credit: A. Fujii

Wide-field view of HD 189733b and surroundings (DSS2 excerpt, ground-based image): A star field image showing the star HD 189733 (centre). The NASA/ESA Hubble Space Telescope has given astronomers a fascinating new insight into the atmosphere of HD 189733b. To the right of the star is the notable planetary nebula Messier 27. The field-of-view is approximately 0.9 x 0.6 degrees.

Name: HD 189733b, Messier 27
Type: Milky Way : Star : Circumstellar Material : Disk : ProtoplanetaryMilky Way : Nebula : Type : Planetary
Category: NebulaeStars
Constellation: Vulpecula
Release date: 11 December 2007, 10:00
Credit: NASA, ESA, and the Digitized Sky Survey 2. Acknowledgment: Davide De Martin (ESA/Hubble)

Wide-field view of the Summer Triangle (ground-based image): A wide field image of the region of sky in which HD 189733b is located. In this image we can see the asterism of the "Summer Triangle" a giant triangle in the sky composed of the three bright stars Vega (top left), Altair (lower middle) and Deneb (far left). HD 189733b is orbiting a star very close to the centre of the triangle.

Name: The Great Triangle
Type: Milky Way : Sky Phenomenon : Night Sky : Asterism
Category: Stars
Release date: 11 December 2007, 10:00
Credit: A. Fujii

Wide-field view of HD 189733b and surroundings (ground-based image): A wide star field image of the region around HD 189733b. In the centre is the star HD 189733 and just to the right is the planetary nebula Messier 27. The field-of-view is approximately 2.7 x 2.8 degrees.

Name: HD 189733b, Messier 27
Type: Milky Way : Star : Circumstellar Material : Disk : ProtoplanetaryMilky Way : Nebula : Type : Planetary
Category: NebulaeStars
Constellation: Vulpecula
Release date: 11 December 2007, 10:00
Credit: NASA, ESA, and the Digitized Sky Survey 2. Acknowledgment: Davide De Martin (ESA/Hubble)

GALEX ultraviolet image of the interacting galaxies M81 and M82: A GALEX ultraviolet image of the interacting galaxies M81 and M82, which lie 12 million light-years away in the constellation Ursa Major. The gravity from each galaxy dramatically affected the other during their last close encounter, 200 million years ago. Gas density waves rippling around M81 make it a grand design spiral. M82 is undergoing  a starburst at its core, creating glowing fingers of hydrogen.

Name: Holmberg IX, M81, M82
Type: Local Universe : Galaxy : Type : Interacting
Category: Galaxies
Constellation: Ursa Major
Distance: 12 million light years
Release date: 8 January 2008, 20:00
Credit: NASA, ESA, and D. de Mello (Catholic University of America/GSFC) & NASA/GALEX

Hubble Space Telescope visible light image "blue blobs": A Hubble Space Telescope visible light image of bright blue star clusters found along a wispy bridge of gas that was tidally stretched between the two galaxies, and a third companion galaxy not seen in this picture. This is not the place astronomers expect to find star clusters because the density of gas is so low. Turbulence in the gas may have  enhanced the density locally to trigger starbirth. The so-called "blue blobs" are clumped together in a structure called Arp's Loop. Hubble reveals the clusters contain the equivalent of five Orion Nebulae. Analysis of the stellar population in the clusters yields an age of approximately 200 million years, which coincides with the epoch of the collision.

Name: Holmberg IX, M81, M82
Type: Local Universe : Star : Grouping : Cluster
Category: Star Clusters
Constellation: Ursa Major
Distance: 12 million light years
Release date: 8 January 2008, 20:00
Credit: NASA, ESA, and D. de Mello (Catholic University of America/GSFC)