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At the same time, magnification darkens the background sky (i.e. reduces its luminance). Therefore stars normally invisible to the naked eye become visible in the telescope. Further increasing the magnification makes the sky look even darker in the eyepiece, but there is a limit to how far this can be taken.
2nd brightest star in night sky [46] −0.55: planet Saturn: seen from Earth maximum brightness near opposition and perihelion when the rings are angled toward Earth [42] −0.3: Halley's comet: seen from Earth Expected apparent magnitude at 2061 passage −0.27: star system Alpha Centauri AB: seen from Earth Combined magnitude (3rd brightest ...
Apparent magnitude, the brightness of an object as it appears in the night sky. Absolute magnitude, which measures the luminosity of an object (or reflected light for non-luminous objects like asteroids ); it is the object's apparent magnitude as seen from a specific distance, conventionally 10 parsecs (32.6 light years ).
The planet will reach opposition on Sept. 21, around the time when it is closest to the Earth, but any cloud-free night will be optimal for spotting the planet after dark. Saturn is bright enough ...
A dark sky place is exactly what it sounds like. Modern lighting in cities and towns contributes to light pollution, which obscures many stars from sight for those who live in urban environments.
Saturn has been visible for late-night stargazers for most of the year, but in August, the planet will be visible all night long, as long as it isn't cloudy. On Monday, Aug. 2, Saturn will ...
The Triangulum Galaxy (M33) is a difficult averted vision object and only visible at all if it is higher than 50° in the sky. The globular clusters M 3 in Canes Venatici and M 92 in Hercules are also visible with the naked eye under such conditions. Under really dark sky conditions, however, M33 is easy to see, even in direct vision.
Weekend stargazers will be treated with stellar views of Saturn, the ringed jewel of the solar system, as it reaches its closest point to the Earth. On Sunday, Aug. 27, Saturn will reach ...