The faceted dome shape means the lights can be projected and dispersed over 180-degrees, meaning the entire ceiling is covered with lights. This Northern Lights projector is compatible with all Android and IOS smartphones. You can customize the visibility of the stars, full moon activation and the 'Aurora Borealis' colors to suit your mood. The LED light and green lasers are adjustable from barely visible to highly vivid.

It serves no other purpose or provides any scientific accuracy. Still, it is a discrete, affordable, high-quality device that puts out visually stunning lasers to transform your surroundings while drawing very little energy. This is an unusual entry on our list, given that it only has one function. That said, we have included it in this guide as an inexpensive 'faff-free' star projector, though as we discussed in our BlissLights Starport USB star projector review, we use the term star projector loosely.The planet will be setting in the west before 11 p.m. local time at month's end, but the earlier sunsets of autumn will deliver several hours of excellent evening viewing all month long. On Nov. 4, Saturn's westward retrograde motion through the stars of central Aquarius will slow to a stop as it completes a retrograde loop that began in June. It will spend the rest of November ramping up its eastward trek and slightly decreasing its 24-degree separation from Neptune to its east. Planets, named for the Greek word for "wanderer," process through the starfield a little each day, executing loops with time scales dependent on the length of the planet's year or orbital period around the Sun. Planets, to the naked eye, appear as points of light in the sky with variable brightness. Planets shine due to sunlight reflecting or scattering from the planets' surface or atmosphere. Thus, the relative Sun-planet-Earth positions determine the planet's brightness. With a telescope or good binoculars, the planets appear as discs demonstrating finite size, and it is possible to observe orbiting moons which cast shadows onto the host planet's surface. Venus is the most prominent planet, often called the "morning star" or "evening star" because it is brighter than the stars and often the only "star" visible near sunrise or sunset, depending on its location in its orbit. Because of its brightness, Venus can sometimes be seen after sunrise. Mercury, Mars, Jupiter and Saturn are also visible to the naked eye in the night sky. Be sure to turn off all lights that can interfere with your counts, including porch lights and interior house lights. Use a flashlight to find your way to a safe place to count stars. Most star projectors come with a 'sleep timer' that will switch the device off after a specified amount of minutes.

After sunset the civil twilight sets in, and ends when the Sun drops more than 6° below the horizon. This is followed by the nautical twilight, when the Sun reaches heights of −6° and −12°, after which comes the astronomical twilight defined as the period from −12° to −18°. When the Sun drops more than 18° below the horizon, the sky generally attains its minimum brightness. The image can be rotated in its stand and has 360-degree mobility with built-in motors. It performs best when projected from a distance of around two meters. The lens, made by Bresser, features a focusing wheel for simple image adjustment. Like many star projectors, it offers automatic shutdown options after 30, 60 or 120 minutes, making it great for kids who want to fall asleep under a starry sky in their bedroom. Additionally, it includes a 'shooting star' mode, projecting a 'meteor' every 40 seconds. Over the month, Saturn's brightness will diminish a little from magnitude 0.7 to 0.85. Viewed in a telescope during November Saturn will show an apparent disk diameter of 17.4 arc-seconds, and its rings will span nearly 41 arc-seconds. 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. When you find a safe comfortable location with good visibility, turn off your flashlight and allow your eyes to adjust to the light for a few minutes.

Visual Magnitude: This is the astronomer's scale for measuring the brightness of objects in the sky. The dimmest object visible in the night sky under perfectly dark conditions is about magnitude 6.5. Brighter stars are magnitude 2 or 1. The brightest objects get negative numbers. Venus can be as bright as magnitude minus 4.9. The full moon is minus 12.7 and the sun is minus 26.8.