Full-shell image of SN 1006 showing location of Hubble observations (ground-based image): 01/07/2008 15:00 This image is a composite of visible (or optical), radio, and X-ray data of the full shell of the supernova remnant from SN 1006. The radio data show much of the extent that the X-ray image shows. In contrast, the visible light stems primarily from a small delicate filament along the northwest rim of the shell. The entire object has an angular size of roughly 30 arcminutes (0.5 degree, or about the size of the full Moon), and a physical size of 60 light-years based on its distance of nearly 7,000 light-years. The small green box along the bright filament at the top of the image corresponds to the dimensions of the Hubble release image. The optical data were obtained at the University of Michigan's 0.9-meter Curtis Schmidt telescope at the National Science Foundation's Cerro Tololo Inter-American Observatory (CTIO) near La Serena, Chile. CTIO is part of the National Optical Astronomy Observatory, which has its headquarters in Tucson, Arizona (USA). H-alpha, continuum-subtracted data were provided by F. Winkler (Middlebury College) et al. The X-ray data were acquired from the Chandra X-ray Observatory's AXAF CCD Imaging Spectrometer (ACIS) at 0.5-3keV, and were provided by J. Hughes (Rutgers University) et al. The radio data, supplied by K. Dyer and collaborators Maddalena and Cornwell (NRAO, Socorro, USA), were a composite from the National Radio Astronomy Observatory's Very Large Array (NRAO/VLA) in Socorro, New Mexico (USA), along with NRAO's Green Bank Telescope (GBT) in Green Bank, West Virginia (USA). These radio data were at the 1.4 GHz frequency. Data of the supernova remnant were blended on a visible-light stellar background created using the Digitized Sky Survey's Anglo-Australian Observatory (AAO2) blue and red plates.

Name: SN 1006
Type: Milky Way : Nebula : Type : Supernova Remnant
Category: Nebulae
Distance: 5000 light years
Release date: 1 July 2008, 15:00
Credit: NASA, ESA, and Z. Levay (STScI). Science Credit: Radio: NRAO/AUI/NSF GBT+VLA 1.4 GHz mosaic (Dyer, Maddalena and Cornwell, NRAO); X-ray: NASA/CXC/Rutgers/G. Cassam-Chenai and J. Hughes et al.; Optical: F.Winkler/Middlebury College and NOAO/AURA/NSF; and DSS

SN 1006 Supernova remnant expansion comparison: 01/07/2008 15:00 Comparison of visible hydrogen emission in the NW filament of SN 1006 in data taken at the CTIO Curtis-Schmidt H-alpha, continuum-subtracted (Winkler, et al.) in 1998 (shown in green), and the Hubble ACS data (Raymond et. al) in 2006 (shown in red). The stellar background is from WFPC2 broadband B, V, and I data from 2008 (Hubble Heritage Team).

Name: SN 1006
Type: Milky Way : Nebula : Type : Supernova Remnant
Category: Nebulae
Distance: 5000 light years
Release date: 1 July 2008, 15:00
Credit: NASA, ESA, and L. Frattare (STScI). Science Credit: Hubble data: NASA, ESA, and the Hubble Heritage Team (STScI/AURA); CTIO data: Winkler/CTIO/NOAO/AURA

White dwarf stars in open cluster NGC 6791: In studying the dimmest burned-out stars in globular star cluster NGC 6791, the NASA/ESA Hubble Space Telescope has uncovered a paradox: three different populations of stars exist in an object where all the stars should have formed at the same time out of an interstellar cloud of gas and dust. [Left] - This is a ground-based telescopic view of NGC 6791, located 13,300 light-years away in the constellation Lyra. The green inset box shows the view with Hubble's Advanced Camera for Surveys. [Top right] - The full Hubble Advanced Camera for Surveys field is full of stars estimated to be 8 billion years old. Two background galaxies can be seen at upper left. [Bottom right] - A blow up of view of a small region of the Advanced Camera for Surveys field reveals very faint white dwarfs. The blue circles identify hotter dwarfs that are 4 billion years old. The red circles identify cooler dwarfs that are 6 billion years old.

Name: NGC 6791
Type: Milky Way : Star : Grouping : Cluster : Globular
Category: Star Clusters
Distance: 13000 light years
Release date: 10 July 2008, 15:00
Credit: NASA, ESA, and L. Bedin (STScI)

Ground-based telescopic view of NGC 6791: This is a ground-based telescopic view of NGC 6791, located 13,300 light-years away in the constellation Lyra.

Name: NGC 6791
Type: Milky Way : Star : Grouping : Cluster : Open
Category: Star Clusters
Constellation: Lyra
Distance: 13000 light years
Release date: 10 July 2008, 15:00
Credit: NASA, ESA, DSS, and L. Bedin (STScI)

NGC 6791: full Hubble ACS field: The full Hubble Advanced Camera for Surveys field is full of stars estimated to be 8 billion years old. Two background galaxies can be seen at upper left.

Name: NGC 6791
Type: Milky Way : Star : Grouping : Cluster : Open
Category: Star Clusters
Constellation: Lyra
Distance: 13000 light years
Release date: 10 July 2008, 15:00
Credit: NASA, ESA, and L. Bedin (STScI)

Small region of ACS field reveals faint white dwarfs: A blow up of view of a small region of the Advanced Camera for Surveys field reveals very faint white dwarfs. The hotter dwarfs are 4 billion years old and the cooler dwarfs that are 6 billion years old.

Name: NGC 6791
Type: Milky Way : Star : Grouping : Cluster : Open
Category: Star Clusters
Constellation: Lyra
Distance: 13000 light years
Release date: 10 July 2008, 15:00
Credit: NASA, ESA, and L. Bedin (STScI)