RCW 103 is a
supernova remnant
A supernova remnant (SNR) is the structure resulting from the explosion of a star in a supernova. The supernova remnant is bounded by an expanding shock wave, and consists of ejected material expanding from the explosion, and the interstellar mat ...
with
right ascension
Right ascension (abbreviated RA; symbol ) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at the equinox (celestial coordinates), March equinox to the (hour circle of the) point in questio ...
16
h17
m30
s and
declination
In astronomy, declination (abbreviated dec; symbol ''δ'') is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. The declination angle is measured north (positive) or ...
−51° 02. It is approximately 2000 years old and contains
x-ray
An X-ray (also known in many languages as Röntgen radiation) is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays. Roughly, X-rays have a wavelength ran ...
source
1E 161348-5055 at its heart. It is 10,000 light years away in the
constellation
A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.
The first constellati ...
Norma (constellation)
Norma is a small constellation in the Southern Celestial Hemisphere between Ara (constellation), Ara and Lupus (constellation), Lupus, one of twelve drawn up in the 18th century by France, French astronomer Nicolas-Louis de Lacaille and one ...
.
References
External links
Supernova Leaves Behind Mysterious Object(SpaceDaily)
(The Astrophysical Journal)
Supernova remnants
Norma (constellation)
?
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