Messier 82 (M82), often known as the Cigar Galaxy, was discovered by the German astronomer Johann Elert Bode in 1774.
The Discovery of Messier 82
Johann Elert Bode identified M82, along with its galactic neighbor Messier 81 (M81), in the same year. His observation in 1774 marked the first known recording of this remarkable galaxy.
Key Details About Messier 82
M82 is a starburst galaxy, notable for its extremely rapid rate of star formation, which is thought to be triggered by its gravitational interaction with M81. Here are some key characteristics:
- Location: Situated in the constellation Ursa Major, making it a prominent target for astronomers in the Northern Hemisphere.
- Distance: It lies approximately 12 million light-years from Earth, making it a relatively close extragalactic object.
- Apparent Magnitude: M82 has an apparent magnitude of 8.4, which means it is observable with binoculars or small telescopes under dark skies.
- Best Observation Period: The galaxy is best observed in April when it is high in the night sky.
The discovery of M82 by Bode predates Charles Messier's cataloging, but it was later added to Messier's famous list of deep-sky objects, which is why it bears the "Messier" designation.
For more information on Messier 82 and other deep-sky objects, you can explore resources from official space agencies such as NASA.
Messier 82 at a Glance
For quick reference, here's a summary of key facts about Messier 82:
| Characteristic | Detail |
|---|---|
| Discoverer | Johann Elert Bode |
| Year of Discovery | 1774 |
| Common Name | The Cigar Galaxy |
| Constellation | Ursa Major |
| Distance from Earth | 12 million light-years |
| Apparent Magnitude | 8.4 |
| Best Observation Month | April |
