NGC 5728: Ground-based and Hubble Space Telescope view of the galaxy NGC 5728.

Name: IRAS 14396-1702, NGC 5728
Type: Local Universe : Galaxy : Type : SpiralLocal Universe : Galaxy : Type : BarredLocal Universe : Galaxy : Component : Central Black Hole
Category: Galaxies
Distance: 80 million light years
Release date: 9 June 1993, 06:00
Credit: Andrew S. Wilson (STScI)/NASA/ESA, James A. Braatz (Univ. Of Maryland), Timothy M. Heckman (STScI), Julian H. Krolik (JHU), George K. Miley (Leiden Observatory), and Allan Sandage (Carnegie Observatories)

Hubble reveals young starburst activity in colliding galaxies: [Right] A NASA/ESA Hubble Telescope (HST) image of NGC 1741, a pair of colliding galaxies are undergoing a burst star formation as a result of a collision. The results from this observations are being presented to the American Astronomical Society meeting in Berkeley, California.

Name: IRAS F04591-0419, NGC 1741
Type: Local Universe : Galaxy : Type : Interacting
Category: Galaxies
Distance: 180 million light years
Release date: 8 June 1993, 06:00
Credit: Dr. Peter Conti (University or Colorado) /NASA & ESA

HST reveals growth processes of young star: A NASA/ESA Hubble Space Telescope (HST) image of a vast cloud of gas being heated by the birth of a new star. This image is being presented at the 182nd meeting of the American Astronomical Society in Berkeley, California. Called Herbig-Haro object #2 (HH-2), the cloud is heated by shock waves from jets of high speed gas being ejected from a newborn star. Because the star itself is embedded in a dusty cocoon, HH-2 provides the only visible clues to physical processes occurring in the young star. The Hubble observations made with the Wide Field/Planetary Camera WF/PC) provide new insight into similar events that probably occurred when our Sun and Solar System formed 4.6 billion years ago.

Name: HH 2
Type: Milky Way : Star : Evolutionary Stage : Young Stellar ObjectMilky Way : Nebula : Type : Jet
Category: Stars
Release date: 10 June 1993, 06:00
Credit: Dick Schwatrz (Univ. of Missouri-St. Louis), and NASA/ESA

Bow shock illustration: A Bow Shock is the area in between a magnetosphere and an ambient medium. In the case of a star, it is the area between the stellar wind and the interstellar medium.

Name: Bow shock
Type: Unspecified
Category: IllustrationsMiscellaneous
Release date: 10 June 1993, 06:00
Credit: NASA & ESA

The Andromeda galaxy: This is a Hubble Space Telescope view of the Andromeda Galaxy's core.

Name: Andromeda Galaxy, IRAS 00400+4059, M 31, Messier 31, NGC 224
Type: Local Universe : Galaxy : Component : Center/Core
Category: Galaxies
Distance: 2 million light years
Release date: 20 July 1993, 06:00
Credit: N/A

The Andromeda galaxy: An HST image of M31's core and two ground-based views.

Name: Andromeda Galaxy, IRAS 00400+4059, M 31, Messier 31, NGC 224
Type: Local Universe : Galaxy : Type : SpiralLocal Universe : Galaxy : Component : Center/Core
Category: Galaxies
Distance: 2 million light years
Release date: 20 July 1993, 06:00
Credit: N/A

Ground-based image of Seyfert galaxy NGC 4395: This photograph of the nearest Seyfert galaxy, NGC 4395, was taken with the Palomar 200-inch telescope. NGC 4395 is the least luminous and nearest Seyfert galaxy known, located eight million light-years away in the direction of the constellation Canes Venatici (The Hunting Dogs). A Seyfert galaxy is a class of nearby galaxy that has an extremely bright central region that often obscure the much dimmer stars in the surrounding disk. The nucleus gives off prodigious amounts of energy largely in the form of high-energy x-rays and gamma rays.

Name: NGC 4295
Type: Local Universe : Galaxy : Activity : AGN : Seyfert
Category: Galaxies
Constellation: Canes Venatici
Distance: 13 million light years
Release date: 16 July 1993, 06:00
Credit: Allan Sandage, Carnegie Institution

Core of the globular cluster NGC 6624: This is a comparison of pictures of the core of the globular cluster NGC 6624, as imaged with the European Space Agency's Faint Object Camera aboard NASA/ESA Hubble Space Telescope. This comparison image demonstrates that Hubble's high resolution and ultraviolet sensitivity allow astronomers to pick out the faint blue counterpart to an X-ray burster buried in the globular cluster. (An X-ray burster is a class of unusual double star that is a source of violent bursts of X-rays.) HST clearly distinguishes the star from others crammed together in the dense core of the cluster. The image on the left shows that one star far outshines all others in the cluster's core when viewed at UV wavelengths. Nearly all the fainter stars in this UV image coincide with bright stars in the image on the right, which was taken in visible (blue) light. They are all cool red stars. When the two images are lined up, the UV-bright star coincides with the inconspicuous star that is identified by tic-marks in the right-hand image. It is the bluest (and therefore hottest) star in the cluster and is at the position of an X-ray source known as 4U 1820-30 (first identified as a bright X-ray source in the 1970s during an all sky survey carried out by the Uhuru satellite).

Name: NGC 6624
Type: Milky Way : Star : Type : Exotic : X-Ray BinaryMilky Way : Star : Grouping : Cluster : Globular
Category: Star Clusters
Distance: 25000 light years
Release date: 27 August 1993, 06:00
Credit: Ivan King, University of California at Berkeley; and NASA/ESA

Illustration of X-ray burster: Illustration of X-ray burster

Name: X-ray burster
Type: Unspecified : Star : Type : Variable : X-Ray Binary (Star)
Category: Stars
Release date: 27 August 1993, 06:00
Credit: NASA & ESA

Hubble sees gas shell around Nova Cygni 1992: A NASA/ESA Hubble Space Telescope (HS1) image of a tepidly ballooning bubble of gas blasted off a star. The shell surrounds Nova Cygni 1992 which erupted on February 19, 1992. The shell is so young it still contains a record of the initial conditions of the explosion. The HST image was taken in ultraviolet light with the European Space Agency's Faint Object Camera (FOC) on May 31, 1993, 467 days after the explosion. The FOC reveals a remarkably circular yet slightly lumpy ring-like structure. The ring is the edge of the bubble's shell of hot gas. The shell is only 37 billion miles (about 60 billion kilometres) across, or 400 times the diameter of the solar system. A beam of light could cross the shell in less than 2-1/2 days.

Name: Nova Cygni 1992
Type: Milky Way : Star : Type : Variable : Nova
Category: Stars
Distance: 5500 light years
Release date: 30 September 1993, 05:00
Credit: Francesco Parasce, ESA/STScI and NASA

Hubble Telescope Image of the "String of Pearls" Comet: A NASA/ESA Hubble Space Telescope image of approximately 20 objects that comprise comet P/Shoemaker-Levy 9, giving it the resemblance of a "string of pearls." The comet is hurtling toward a July 1994 collision with the giant planet Jupiter. Rubble's high resolution shows that the comet's nuclei are much smaller than originally estimated from observations with ground-based telescopes. The Hubble observations show that the nuclei are probably less than three miles (5 km) across, as opposed to earlier estimates of nine miles (14 km).

Name: Shoemaker-Levy 9
Type: Solar System : Interplanetary Body : Comet
Category: Solar System
Release date: 18 October 1993, 05:00
Credit: Dr. H. A. Weaver and Mr. T. E. Smith, STScI NASA/ESA

Hubble Telescope Image of the "String of Pearls Comet: Hubble Space Telescope provided a detailed look at the comet P/Shoemaker-Levy 9 before it smashed into Jupiter.

Name: Shoemaker-Levy 9
Type: Solar System : Interplanetary Body : Comet
Category: Solar System
Release date: 18 October 1993, 05:00
Credit: Dr. H. A. Weaver and Mr. T. E. Smith, STScI NASA/ESA