radio source Comparison Table

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radio source comparison table

Subject has ejection velocity has expansion velocity has explosion date is part of is a kind of has catalog has progenitor star has number of star has acronym has wavelength produce has diameter is an instance of has synonym has definition has distance has composition

Cassiopeia A 800 km s^-1 celestial sphere radio source catalog X-ray X-ray source 3U 2321+58 A radio source in Cassiopeia, the strongest extrasolar source in the sky, believed to be the remnant of a Type II supernova whose light reached Earth about 1667. Optically it is a faint nebula. It has a mass of a few solar masses. It is also an extended source of soft X-rays. 3 kpc

Centaurus A celestial sphere radio source catalog X-ray X-ray source NGC 5128 A strong radio source. Optically, it is an elliptical galaxy with a dark obscuring lane. It is the nearest known violent galaxy. 4 Mpc

Lupus Loop celestial sphere radio source catalog radio radio source A radio source, a large broken shell 4°.5 in diameter, identified as a prehistoric supernova remnant.

North Polar Spur celestial sphere radio source catalog X-ray X-ray source A radio continuum feature extending from the galactic plane to the vicinity of the North Galactic Pole. It is believed to be a supernova remnant. It is also an X-ray source. 50-200 pc

Orion A celestial sphere radio source catalog radio radio source A radio continuum feature (an H II region) centered on the Trapezium, and excited by θ¹ Ori C. The Orion A molecular cloud, which lies beyond it, is a rich source of molecules CO, OH, HCN, and probably NO, HCO, and H₂CO have been observed.

Orion B celestial sphere radio source catalog radio radio source NGC 2024 A radio continuum source.

radio galaxy celestial sphere radio source galaxy catalog 10⁶ to 10¹² radio A galaxy that is extremely luminous at radio wavelengths. A radio galaxy is usually a giant elliptical - the largest galaxy in a cluster - and is a strong emitter of synchrotron radiation. M87 and M82 are examples.

radio lobes celestial sphere radio source catalog radio radio source Extended regions of diffuse radio emission, often dumbbell shaped, that surround a radio galaxy.

Sagittarius A celestial sphere radio source catalog radio 12 pc radio source The very center of the Milky Way, Sagittarius A^* is a strong source of radio waves and probably a massive black hole.

Sagittarius B2 celestial sphere radio source catalog radio radio source A massive (3 × 10⁶ M_sun), dense (up to 10⁸ particles per cm³) H II region and molecular cloud complex - the richest molecular source in the Galaxy. It is in the galactic plane, near the galactic center. 10 kpc distant

supernova remnant 10000 km s^-1 gas radio source radio source catalog SNR radio synchrotron radiation emission nebula A gaseous nebula, the expanding shell ejected by a supernova, and deriving its energy (at least in some cases) from the conversion by the remanent neutron star of its rotational energy into a stream of high-energy particles being continually accelerated in the SNR. About 100 SNRs are known in our Galaxy. Supernova remnants are usually powerful radio sources. enhanced with heavy elements relative to the interstellar medium

W3 celestial sphere radio source catalog radio radio source A dense cloud of gas in the Perseus arm. 3 kpc

W49 celestial sphere radio source catalog radio radio source A radio source (a giant H II region). It is the most powerful thermal radio source known in our Galaxy. 14 kpc

Next celestial body: ring Up: celestial body Previous celestial body: planet

Subject	has ejection velocity	has expansion velocity	has explosion date	is part of	is a kind of	has catalog	has progenitor star	has number of star	has acronym	has wavelength	produce	has diameter	is an instance of	has synonym	has definition	has distance	has composition
Cassiopeia A		800 km s^-1		celestial sphere		radio source catalog				X-ray			X-ray source	3U 2321+58	A radio source in Cassiopeia, the strongest extrasolar source in the sky, believed to be the remnant of a Type II supernova whose light reached Earth about 1667. Optically it is a faint nebula. It has a mass of a few solar masses. It is also an extended source of soft X-rays.	3 kpc
Centaurus A				celestial sphere		radio source catalog				X-ray			X-ray source	NGC 5128	A strong radio source. Optically, it is an elliptical galaxy with a dark obscuring lane. It is the nearest known violent galaxy.	4 Mpc
Lupus Loop				celestial sphere		radio source catalog				radio			radio source		A radio source, a large broken shell 4°.5 in diameter, identified as a prehistoric supernova remnant.
North Polar Spur				celestial sphere		radio source catalog				X-ray			X-ray source		A radio continuum feature extending from the galactic plane to the vicinity of the North Galactic Pole. It is believed to be a supernova remnant. It is also an X-ray source.	50-200 pc
Orion A				celestial sphere		radio source catalog				radio			radio source		A radio continuum feature (an H II region) centered on the Trapezium, and excited by θ¹ Ori C. The Orion A molecular cloud, which lies beyond it, is a rich source of molecules CO, OH, HCN, and probably NO, HCO, and H₂CO have been observed.
Orion B				celestial sphere		radio source catalog				radio			radio source	NGC 2024	A radio continuum source.
radio galaxy				celestial sphere	radio source	galaxy catalog		10⁶ to 10¹²		radio					A galaxy that is extremely luminous at radio wavelengths. A radio galaxy is usually a giant elliptical - the largest galaxy in a cluster - and is a strong emitter of synchrotron radiation. M87 and M82 are examples.
radio lobes				celestial sphere		radio source catalog				radio			radio source		Extended regions of diffuse radio emission, often dumbbell shaped, that surround a radio galaxy.
Sagittarius A				celestial sphere		radio source catalog				radio		12 pc	radio source		The very center of the Milky Way, Sagittarius A^* is a strong source of radio waves and probably a massive black hole.
Sagittarius B2				celestial sphere		radio source catalog				radio			radio source		A massive (3 × 10⁶ M_sun), dense (up to 10⁸ particles per cm³) H II region and molecular cloud complex - the richest molecular source in the Galaxy. It is in the galactic plane, near the galactic center.	10 kpc distant
supernova remnant	10000 km s^-1			gas	radio source	radio source catalog			SNR	radio	synchrotron radiation			emission nebula	A gaseous nebula, the expanding shell ejected by a supernova, and deriving its energy (at least in some cases) from the conversion by the remanent neutron star of its rotational energy into a stream of high-energy particles being continually accelerated in the SNR. About 100 SNRs are known in our Galaxy. Supernova remnants are usually powerful radio sources.		enhanced with heavy elements relative to the interstellar medium
W3				celestial sphere		radio source catalog				radio			radio source		A dense cloud of gas in the Perseus arm.	3 kpc
W49				celestial sphere		radio source catalog				radio			radio source		A radio source (a giant H II region). It is the most powerful thermal radio source known in our Galaxy.	14 kpc