September
Cúmulo Globular de Delphinus
NGC 6934 is a globular cluster in the constellation Delphinus. Of apparent magnitude 8.9, its brightest star is magnitude 10, making it a challenging object for instruments with an aperture of less than 20 cm.
It is located 51,200 light years from Earth and 41,700 light years from the galactic center. It is an ancient cluster, whose age is estimated at 13,000 and 16,000 million years
Nebulosa de Dumbbell
The Dumbbell Nebula (also known as Object Messier 27, M27 or NGC 6853) is a planetary nebula1 in the constellation of Vulpecula, at a distance of 1250 al.
This nebula was the first planetary nebula to be discovered, described by Charles Messier in 1764. With an apparent magnitude of 7.4 and a diameter of 8 arc minutes, it is easy to observe with binoculars.
The Dumbbell Nebula has an estimated age of 3,000 to 4,000 years.
Cúmulo Globular de Sagitario
Messier 22 or M22, also known as NGC 6656, is an elliptical globular cluster of stars in the constellation Sagittarius, near the region of the galactic bulge. It is one of the brightest globulars visible in the night sky.
The brightest stars are magnitude 11, with hundreds of stars bright enough to be resolved with an 8 “telescope. It is just south of the sun’s position in mid-December and northwest of Lambda Sagittarii (Kaus Borealis), the northernmost star of the asterism “Teapot”.
Cúmulo Globular de Capricornio
Messier 30 (also known as M30 or NGC 7099) is a globular cluster in the constellation Capricornus. It was discovered by Charles Messier in 1764. M30 is at a distance of approximately 26,000 light years from Earth.
Nebulosa del Boomerang
NGC 40 (also known as Bow-Tie Nebula and Caldwell 2) is a planetary nebula discovered by William Herschel on November 25, 1788 and is composed of hot gas around a dying star.
The star has expelled its outer shell, leaving a smaller, hotter star with a surface temperature of about 50,000 degrees Celsius. [3] Radiation from the star causes the outer shell of the shed to heat up to about 10,000 degrees Celsius, [3] and is about a light-year across.
About 30,000 years from now, scientists theorize that NGC 40 will fade, leaving only a white dwarf star roughly the size of Earth.
Nebulosa del Anillo
The Ring Nebula (also known as the Lyra Ring Nebula, Planetary Nebula M57, Messier 57, M57, or NGC 6720) is a prototypical planetary nebula located in the constellation Lyra. It is one of the best known nebulae frequently used as an example of this type of astronomical object.
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