Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Andromeda Galaxy and Hydrogen line

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Andromeda Galaxy and Hydrogen line

Andromeda Galaxy vs. Hydrogen line

The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth, and the nearest major galaxy to the Milky Way. The hydrogen line, 21-centimeter line or H I line refers to the electromagnetic radiation spectral line that is created by a change in the energy state of neutral hydrogen atoms.

Similarities between Andromeda Galaxy and Hydrogen line

Andromeda Galaxy and Hydrogen line have 12 things in common (in Unionpedia): Cosmic dust, Doppler effect, Frequency, Galaxy, Galaxy rotation curve, H I region, Hydrogen, Jan Oort, Milky Way, Radio astronomy, Solar System, Spectral line.

Cosmic dust

Cosmic dust, also called extraterrestrial dust or space dust, is dust which exists in outer space, as well as all over planet Earth.

Andromeda Galaxy and Cosmic dust · Cosmic dust and Hydrogen line · See more »

Doppler effect

The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave in relation to observer who is moving relative to the wave source.

Andromeda Galaxy and Doppler effect · Doppler effect and Hydrogen line · See more »

Frequency

Frequency is the number of occurrences of a repeating event per unit of time.

Andromeda Galaxy and Frequency · Frequency and Hydrogen line · See more »

Galaxy

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

Andromeda Galaxy and Galaxy · Galaxy and Hydrogen line · See more »

Galaxy rotation curve

The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the orbital speeds of visible stars or gas in that galaxy versus their radial distance from that galaxy's centre.

Andromeda Galaxy and Galaxy rotation curve · Galaxy rotation curve and Hydrogen line · See more »

H I region

An HI region or H I region (read H one) is a cloud in the interstellar medium composed of neutral atomic hydrogen (HI), in addition to the local abundance of helium and other elements.

Andromeda Galaxy and H I region · H I region and Hydrogen line · See more »

Hydrogen

Hydrogen is a chemical element with symbol H and atomic number 1.

Andromeda Galaxy and Hydrogen · Hydrogen and Hydrogen line · See more »

Jan Oort

Jan Hendrik Oort (or; 28 April 1900 – 5 November 1992) was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy.

Andromeda Galaxy and Jan Oort · Hydrogen line and Jan Oort · See more »

Milky Way

The Milky Way is the galaxy that contains our Solar System.

Andromeda Galaxy and Milky Way · Hydrogen line and Milky Way · See more »

Radio astronomy

Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.

Andromeda Galaxy and Radio astronomy · Hydrogen line and Radio astronomy · See more »

Solar System

The Solar SystemCapitalization of the name varies.

Andromeda Galaxy and Solar System · Hydrogen line and Solar System · See more »

Spectral line

A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies.

Andromeda Galaxy and Spectral line · Hydrogen line and Spectral line · See more »

The list above answers the following questions

Andromeda Galaxy and Hydrogen line Comparison

Andromeda Galaxy has 172 relations, while Hydrogen line has 80. As they have in common 12, the Jaccard index is 4.76% = 12 / (172 + 80).

References

This article shows the relationship between Andromeda Galaxy and Hydrogen line. To access each article from which the information was extracted, please visit:

Hey! We are on Facebook now! »