Reflection Nebulae NGC1973, NGC1975 and NGC1977 in Orion
(RA 5h 35.1m , Dec. -4° 44', 20 x 10 arcmin.)
This bright reflection nebula is located about 30' N of M42 (see finder chart below).
Reflection Nebulae
Credit: NASA and The Hubble Heritage Team (STScI) ...
Reflection Nebulae - A cloud of interstellar gas and dust that is luminous because the dust it contains reflects the light of a nearby star ...
Reflection nebulae are also usually sites of star formation.
In 1922, Edwin Hubble published the result of his investigations on bright nebulae.
Reflection nebulae are usually less dense than dark nebulae, and have sizes that are determined by the source of illumination.
Reflection nebulae are nebulae that reflect stars' light - stars from either inside or near the nebula. The Pleiades (pictured to the side) is a good example of a reflection nebula.
Reflection nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars. Reflection nebulae are also usually sites of star formation. They are usually blue because the scattering is more efficient for blue light.
Other reflection nebulae are IC435, IC432, IC431.
These nebulae are visible in binoculars and small telescopes and more nebulae become visible in larger size scopes.
Orion the constellation to constellation list homepage.
In Astronomy, reflection nebulae are interstellar cloud of dust which are simply reflecting the light of a nearby star or stars.
reflection nebulae (NASA Thesaurus) Any celestial body having a hazy cloudy appearance whose brightness results from the scattering by dust particles of light from nearby stars. reflectivity (NASA SP-7, 1965) 1.
I want to point out something that is very important before getting into the details - a filter that substantially improves views of star clusters, galaxies, or reflection nebulae does not exist.
These stars reside in reflection nebulae and show gradual increases in their luminosity in the order of 6 magnitudes followed by a lengthy phase of constant brightness. They then dim by 2 magnitudes or so over a period of many years.
Bright stars near reflection nebulae emit light into the region that is reflected by the large amount of dust there.
AAT 20 NGC 6589-90 reflection nebulae in Sagittarius
AAT 22 NGC 6520 open cluster and Barnard 86
AAT 26 NGC 6822, a galaxy in the Local Group
AAT 30 Stars in NGC 6514, the Trifid nebula, M20
AAT 93 NGC 6522 in Baade's window ...
Both faint reflection nebulae and opaque dark nebulae also abound in this region, particularly in the region between Antares and Rho Ophiuci. This is due to the fact that we are looking in the direction close to the center of our galaxy.
This is an image of the Pleiades, an open cluster/reflection nebulae 400 light years away. It is easily seen with the naked eye and is known as the Seven Sisters.
(62K JPG) ...
This value has been so far determined empirically, from the shape of the long-wavel;ength tail of the spectrum (especially from reflection nebulae which can be modelled in detail). For whole galaxies, values of the exponent near -1 fit well.
In the vicinity of bright stars the grains appear as glowing regions because of the intensity of the light they scatter; these regions are called reflection nebulae.
Normally, reflection nebulae like this - made of clouds of gas not hot enough to emit light themselves - glow blue because of the way they scatter light, but this part of the Iris Nebula appears unusually red.
A generic term for a fuzzy, diffuse astronomical object. Astronomers have observed four different types of nebulae: H II regions, reflection nebulae, planetary nebulae, and supernova remnants.
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It's multicolouredness is caused by the many different processes happening here. Present are both reflection nebulae, and emission nebulae. There are also many dust clouds present, that are lighted up by nearby stars, (like Antares).
Emission nebula are powered by young, massive stars and emit their own light, reflection nebulae shine by reflecting light from nearby massive stars, and dark nebulae, as the name suggests, ...
(The word nebula in Latin means "cloud"; its plural is "nebulae.'') Nebulae can make themselves apparent by glowing (as "emission nebulae''), by scattering light from stars within them (as "reflection nebulae''), ...
Reflection Nebula: A nebula composed of dust particles that scatter and reflect incident light (rather than glowing from their own intrinsic emission). Dust preferentially scatters short wavelengths, so reflection nebulae have a characteristic blue ...
inside of an earthly vacuum chamber), and form by gravitational instability inside those clouds triggered by shockwaves from supernovae. (High mass stars powerfully illuminate the clouds from which they formed. One example of such reflection nebulae ...
The dark clouds are regions of dense interstellar dust, the reddish clouds diffuse nebulae ionized by hot stars, the blue clouds reflection nebulae caused by starlight scattered from dust grains. Image courtesy of Dr. Axel Mellinger.
 See also: Reflection nebula, Reflection, Nebula, Light, Star
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