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The answer to this question depends on the type of star projector you're considering. Some FDA-approved laser star projectors are safe for brief and accidental exposure to eyes, but they are not recommended for children, and you should never look directly into a laser beam. Algol normally shines at magnitude 2.1, similar to the nearby star Almach (aka Gamma Andromedae). But while fully dimmed, Algol's brightness of magnitude 3.4 is almost identical to Rho Persei (or Gorgonea Tertia or ρ Per), the star sitting just two finger widths to Algol's lower right (or 2.25 degrees to the celestial south). The faceted dome shape means the lights can be projected and dispersed over 180-degrees, meaning the entire ceiling is covered with lights.
Over a week starting on Sunday evening, Nov. 19, the waxing moon will visit four planets in succession — Saturn, Neptune, Jupiter, and Uranus. (Image credit: Chris Vaughan/Starry Night) Pococo Galaxy Star ProjectorIt does what it is supposed to — it projects high-quality imagery onto any surface to immerse you in the wonders of what the universe has to offer, maintaining a static picture or slowly rotating image.★★★★During November the creamy-yellow dot of Saturn will first appear in the lower part of the southern sky after dusk. The fact that the sky is not completely dark at night, even in the absence of moonlight and city lights, can be easily observed, since if the sky were absolutely dark, one would not be able to see the silhouette of an object against the sky. The brilliant planet Venus will continue to dominate the eastern pre-dawn sky during November, even while it slowly drops sunward. At the beginning of the month, the magnitude -4.4 " morning star" will rise in southeastern Leo at around 3:30 a.m. local time. Main article: Sky brightness The Milky Way is brighter in the Southern Hemisphere than in the North. (Photo taken at La Silla Observatory) [2]
On opposition night Uranus will be closest to Earth for this year — at a distance of 1.73 billion miles, 2.79 billion km, or 155 light-minutes. Uranus' minimum distance from Earth will boost its brightness to magnitude 5.62. It will also appear slightly larger — showing a 3.8 arc-seconds-wide disk in telescopes for a week or so centered on opposition night. Most star projectors come with a 'sleep timer' that will switch the device off after a specified amount of minutes.Unlike some other models, we found it to be near silent in its operation, which is great if you're using it to get to sleep or whilst watching a film. The only downside with the Atmosphere Smart Galaxy Projector is that the nebulas and stars aren't scientifically accurate. Still, we enjoyed the experience so much that we didn't feel short-changed. We were especially happy with the option to adjust both the brightness and the projection speed, which makes it great for setting a calm environment to relax in, or an energetic party scene.
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