This amazing deep-sky item is still fully kept.
This James Web Space Telescope shows great expansion in Ring Nebula. For example, the filament structure of the inner ring is particularly visible. Nebula has some 20,000 dense globules, rich in molecular hydrogen. Conversely, the internal area contains warm gas. Credit: ESA/Web, NASA, CSA, M. Barlo, n. Cox, R. Weson
- Ring Nebula (M57) in Laira appears with 4 inches or large telescopes during the summer and fall of the northern hemisphere, which is located between Beta Leere and Gama Lire.
- The M57, with the magnitude of 9.7 and a clear shape of 71 arcseconds, appears as a bright, thick ring on high quantities (100x or more) due to its focused light.
- Classified as a planet nebula, M57 is a gas shell that is extracted from the star like a sun, which leaves a white dwarf star back which is no longer producing energy.
- Overview of the 15th-Picture Central White Dwarf Star of M57 presents an important challenge, requiring 16 inches or large, high magnification (300x-400x), and excellent viewing conditions.
If you own a telescope with an aperture (lens or mirror size) of 4 inches or more, then now a wonderful thing in the sky is high because darkness falls. It is called Ring Nebula, also known as M57 – 57th object in the famous list of French comet Hunter Charles Messier. He discovered the ring in 1779.
Ring Nebula Nakshatra is located in the direction of Laira The Veena, which we see best during the summer and fall of the Northern Hemisphere. The main part of Lira is a magnificent star – Vega – and nearby is a devious box of four Fanner stars. On a star chart (and then in the sky), locate Beta Lire and Gamma Lire. Both these stars make the end of the box which is located the farthest from Vega. Broadly between them, you will find the ring nebula.
The ring magnitude shines at 9.7, which is relatively bright for such objects. Its small size, beyond only 71 ″, concentrates that light, which makes it easy to see. By the way, you can spot the ring nebula through 4 inches smaller. With that size of a device, however, it will appear as a yellow gray ball. Through the large scope, and on the magnification of 100x or more, you will see that the outer part of the ball looks thicker than the central region. This gives M57 its specific “ring” appearance.
Scientists classify M57 as a planet Nebula. In the 19th century, supervisors using small scopes with optics did not do as good as we currently use, compare the presence of these objects to the planets. In fact, a planet Nabula is a shell of gas extracted from the star like a sun that has passed through its life and uses its atomic fuel. Wherever the star used to be, he is a white dwarf, there is still a warm object, but one that is not producing energy like the sun. It is only an astronomical cinder that will cool for billions of years.
Spotting the Central White Dwarf star of M57 ranks as a difficult observation challenge that will test you, your telescope and your observation site. Use an app that yields between 300x and 400x, through a 16 -inch or large telescope a night of excellent viewing. Keep in mind that you are searching for a 15th-magnetted star against a background that is not completely dark. If the central star does not show himself immediately, tap gently on the telescope tube. On such high magnification, it should be exploited with a finger. Because human eye is sensitive to motion, you can see white dwarf at this point. German astronomer Frederick von Han discovered Star in 1800.
