A delicate sphere of gas, photographed by NASA's Hubble Space Telescope, floats serenely in the depths of space. The pristine shell, or bubble, is the result of gas that is being shocked by the expanding blast wave from a supernova. Called SNR 0509-67.5 (or SNR 0509 for short), the bubble is the visible remnant of a powerful stellar explosion in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light-years from Earth.
Ripples in the shell's surface may be caused by either subtle variations in the density of the ambient interstellar gas, or possibly driven from the interior by pieces of the ejecta. The bubble-shaped shroud of gas is 23 light-years across and is expanding at more than 11 million miles per hour (5,000 kilometers per second).
Astronomers have concluded that the explosion was one of an especially energetic and bright variety of supernovae. Known as Type Ia, such supernova events are thought to result from a white dwarf star in a binary system that robs its partner of material, takes on much more mass than it is able to handle, and eventually explodes.
Hubble's Advanced Camera for Surveys observed the supernova remnant on Oct. 28, 2006, with a filter that isolates light from glowing hydrogen seen in the expanding shell. These observations were then combined with visible-light images of the surrounding star field that were imaged with Hubble's Wide Field Camera 3 on Nov. 4, 2010.
With an age of about 400 years as seen from Earth, the supernova might have been visible to southern hemisphere observers around the year 1600. However, there are no known records of a "new star" in the direction of the LMC near that time. A more recent supernova in the LMC, SN 1987A, did catch the eye of Earth viewers and continues to be studied with ground- and space-based telescopes, including Hubble.
Credits
NASA, ESA, and the Hubble Heritage Team (STScI/AURA);Acknowledgment: J. Hughes (Rutgers University)
| About The Object | |
|---|---|
| Object Name | SNR 0509 |
| Object Description | Supernova Remnant |
| R.A. Position | 05h 9m 31.69s |
| Dec. Position | -67° 31' 18.0" |
| Constellation | Dorado |
| Distance | 160,000 light-years (50,000 parsecs) |
| Dimensions | This image is 1.2 arcminutes (58 light-years or 18 parsecs) wide. |
| About The Data | |
| Data Description | The image was created from Hubble data from proposals : J. Hughes, J. Warren, and L. Hovey (Rutgers University), C. Badenes (Weizmann Institute of Science, Israel), C. Smith (NOAO/CTIO), J. Vink (Space Research Organization, Netherlands), and P. Ghavamian (STScI); and : K. Noll, Z. Levay, M. Livio, H. Bond, C. Christian, L. Frattare, M. Mutchler, and T. Borders (Hubble Heritage Team/STScI). |
| Instrument | HST>WFC3/IR and HST>WFC3/UVIS |
| Exposure Dates | October 28, 2006, and November 4, 2010, Exposure Time: 3.3 hours |
| Filters | F475W (g), F555W (V), F658N (H-alpha+[N II]), and F814W (I) |
| About The Image | |
| Color Info | This image is a composite of separate exposures acquired by the WFC3 and ACS instruments on HST. Several filters were used to sample broad and narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Violet: F475W (g) Green: F555W (V) Orange: F814W (I) Red: F658N (H-alpha+[N II]) |
| Compass Image |  |
| About The Object | |
|---|---|
| Object Name | A name or catalog number that astronomers use to identify an astronomical object. |
| Object Description | The type of astronomical object. |
| R.A. Position | Right ascension – analogous to longitude – is one component of an object's position. |
| Dec. Position | Declination – analogous to latitude – is one component of an object's position. |
| Constellation | One of 88 recognized regions of the celestial sphere in which the object appears. |
| Distance | The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs. |
| Dimensions | The physical size of the object or the apparent angle it subtends on the sky. |
| About The Data | |
| Data Description |
|
| Instrument | The science instrument used to produce the data. |
| Exposure Dates | The date(s) that the telescope made its observations and the total exposure time. |
| Filters | The camera filters that were used in the science observations. |
| About The Image | |
| Image Credit | The primary individuals and institutions responsible for the content. |
| Publication Date | The date and time the release content became public. |
| Color Info | A brief description of the methods used to convert telescope data into the color image being presented. |
| Orientation | The rotation of the image on the sky with respect to the north pole of the celestial sphere. |
