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An extreme example of visible light extinction, caused by a dark nebula. In astronomy, extinction is the absorption and scattering of electromagnetic radiation by dust and gas between an emitting astronomical object and the observer. Interstellar extinction was first documented as such in 1930 by Robert Julius Trumpler.
The interstellar extinction (A V) of Rho Ophiuchi is measured to be 1.45 magnitudes, meaning the dust and gas in front of Rho Ophiuchi absorbs light from the system, making it appear 1.45 magnitudes dimmer than it would be if there were no dust or gas. [14]
A comparison of this value with the apparent magnitude allows the approximate distance to be determined, after correcting for interstellar extinction of the luminosity because of gas and dust. In a gravitationally-bound star cluster such as the Hyades, the stars formed at approximately the same age and lie at the same distance. This allows ...
Christopher Nolan's sci-fi film, starring Matthew McConaughey, Jessica Chastain and Anne Hathaway, hit theaters 10 years ago
Interstellar is a 2014 epic science fiction drama film directed by Christopher Nolan, who co-wrote the screenplay with his brother Jonathan. It stars Matthew McConaughey , Anne Hathaway , Jessica Chastain , Bill Irwin , Ellen Burstyn , and Michael Caine .
At its current distance, HD 168871’s brightness is diminished by an interstellar extinction of 0.14 magnitudes [16] and it has a visual absolute magnitude of +4.19. [7] It has a relatively high proper motion across the celestial sphere, [17] moving at a rate of 153.34 mas/yr. [1]
This was explained by the interstellar dust scattered through the galaxy, resulting in the absorption (extinction) of light or interstellar extinction of light. [2] Trumpler further studied and catalogued open clusters in order to determine the size of the Milky Way galaxy.
Christopher Nolan’s Interstellar was so popular it was re-released in theaters for its 10th anniversary and shot to Netflix's top 10 when it was added to the streamer in January 2025.. Starring ...