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Encyclopedia > Dumbbell Nebula
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Messier Object 27, the Dumbbell Nebula

The Dumbbell Nebula (also known as Messier Object 27, M27, or NGC 6853) is a planetary nebula in the Vulpecula constellation, at a distance of about 1250 light years. Download high resolution version (1024x768, 49 KB) This image is not licensed under the GFDL. It is under a non-commercial-use only licence. ... Download high resolution version (1024x768, 49 KB) This image is not licensed under the GFDL. It is under a non-commercial-use only licence. ... NGC 6543, the Cats Eye Nebula A planetary nebula is an astronomical object consisting of a glowing shell of gas formed by certain types of stars at the end of their lives. ... Vulpecula, being Latin for Fox, is a faint northern constellation located in the middle of the Summer Triangle, an asterism consisting of the stars Deneb, Vega and Altair. ... A light year, abbreviated ly, is the distance light travels in one year: roughly 9. ...


This object was the first planetary to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.4 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a great observing target in amateur telescopes. Planetary is an adjective meaning relating to a planet or planets. ... Charles Messier Charles Messier (1730-06-26 - 1817-04-12) was a French astronomer who in 1774 published a catalogue of 45 deep sky objects such as nebulae and star clusters. ... Events January 19 - John Wilkes is expelled from the House of Commons for seditious libel February 15 - The American city of St. ... The apparent magnitude (m) of a star, planet or other heavenly body is a measure of its apparent brightness; that is, the amount of light received from the object. ... A minute of arc, arcminute, or MOA is a unit of angular measurement, equal to one sixtieth (1/60) of one degree. ... Amateur astronomy, often called back yard astronomy, is a hobby whose participants enjoy observing celestial objects. ...


It is estimated that the Dumbbell Nebula is 3,000 to 4,000 years old.


Related topics

Table of images of all 110 Messier objects. ... Related topics Nebula Planetary nebula Wikipedia Project: Astronomical Objects Categories: Planetary nebulae ... The New General Catalogue (NGC) is the most well-known catalogue of deep sky objects in amateur astronomy. ...

External links

  • SEDS Messier page on M27 (http://www.seds.org/messier/m/m027.html)

  Results from FactBites:
 
Messier Object 27 (677 words)
The Dumbbell Nebula Messier 27 (M27, NGC 6853) is perhaps the finest planetary nebula in the sky, and was the first planetary nebula ever discovered.
This planetary nebula is certainly the most impressive object of its kind in the sky, as the angular diameter of the luminous body is nearly 6 arc minutes, with a faint halo extensing out to over 15', half the apparent diameter of the Moon (Millikan 1974).
That the nebula is so much brighter than the star shows that the star emits primarily highly energetic radiation of the non-visible part of the electro-magnetic spectrum, which is absorbed by exciting the nebula's gas, and re-emitted by the nebula, at last to a good part in the visible light.
Dumbbell Nebula - encyclopedia article about Dumbbell Nebula. (1363 words)
The Dumbbell Nebula (also known as Messier Object 27, M27, or NGC 6853) is a planetary nebula A planetary nebula is an astronomical object consisting of a glowing shell of gas and plasma formed by certain types of stars at the end of their lives.
A planetary nebula is an astronomical object that appears nebulous and disk-like in low-resolution observations.
It is estimated that the Dumbbell Nebula is 3,000 to 4,000 years old.
  More results at FactBites »


 

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