Archivo de imágenes de Hubble
Hubble ve una estrella de neutrones sola en el espacio
This is the first direct look, in visible light, at a lone neutron star, as seen by NASA's Hubble Space Telescope. The Hubble results show the star is very hot (1.2 million degrees Fahrenheit at the surface), and can be no larger than 16.8 miles (28 kilometers) across. These resu...
- Fecha
- Jan 1, 1997
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-1997-32-523-image
This is the first direct look, in visible light, at a lone neutron star, as seen by NASA's Hubble Space Telescope. The Hubble results show the star is very hot (1.2 million degrees Fahrenheit at the surface), and can be no larger than 16.8 miles (28 kilometers) across. These results prove that the object must be a neutron star, because no other known type of object can be this hot, small, and dim (below 25th magnitude).
The first clue that there was a neutron star at this location came in 1992, when the ROSAT (the Roentgen Satellite) found a bright X-ray source without any optical counterpart in optical sky surveys. Hubble's Wide Field Planetary Camera 2 was used in October 1996 to undertake a sensitive search for the optical object, and found a stellar pinpoint of light within only 2 arc seconds (1/900th the diameter of the Moon) of the X-ray position. Astronomers haven't directly measured the neutron star's distance, but fortunately the neutron star lies in front of a molecular cloud known to be about 400 light-years away in the southern constellation Corona Australis.
Credits
Fred Walter (State University of New York at Stony Brook) and NASADetalles de la imagen
| About The Object | |
|---|---|
| Object Name | RX J185635-3754 |
| R.A. Position | 18h 56m 34.99s |
| Dec. Position | -37° 54' 0.0" |
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Fuente
La imagen y el material de referencia se acreditan al archivo oficial de la misión enlazado a continuación.
Ver en NASA.gov