World light pollution map

Author: s | 2025-04-24

World Night Light Map, Light Pollution Map - citylabmap.com

Light pollution in the world - Vivid Maps

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World Night Light Map, Light Pollution Map - citylabmap.com

Astrophotography filters are essential tools for enhancing your images, whether you’re battling light pollution, capturing distant galaxies, or revealing intricate details of nebulae. Each type of filter is designed to bring out specific features, reduce unwanted wavelengths, or block light pollution, allowing you to get the most out of your setup. This guide will take you through the main types of filters for astronomy cameras, including their uses, advantages, disadvantages, and best applications.Light Pollution FiltersLight pollution filters help reduce the effects of artificial lights in urban areas. These filters work by blocking specific wavelengths from streetlights, particularly in the yellow, orange, and red parts of the spectrum, letting the desired starlight pass through. They are useful for both One-Shot Colour (OSC) cameras and monochrome setups.Types of Light Pollution FiltersBroadband Filters: Target a wide range of wavelengths and are generally designed to block light from sodium and mercury vapour lamps, commonly used in streetlights. They allow more starlight to pass, ideal for a broader view of the night sky.Narrowband Light Pollution Filters: Focus on blocking a narrower range of light wavelengths. They’re more selective in blocking specific sources of light pollution, such as low-pressure sodium lamps.Pros and Cons of Light Pollution FiltersPros: Improve contrast by reducing artificial light interference.Enable clearer images in urban and suburban settings.Cons:Can lead to a loss of true colour balance, making some targets look unnatural.Less effective against newer LED lights, which have a broad and balanced spectrum.Popular Light Pollution FiltersOptolong L-Pro: A broadband filter ideal for reducing urban light pollution, particularly for OSC cameras.IDAS LPS-D1: Known for providing high-quality colour balance with minimal impact on natural light sources.Astronomik CLS Filter: A popular choice for balancing urban light pollution without distorting colours excessively.Broadband and Multiband FiltersBroadband and multiband filters are a more advanced solution, capturing several narrowband wavelengths

GitHub - cgettings/Light-Pollution-Map: Mapping light pollution

"Head and shoulders above the crowd is The Photographer’s Ephemeris. Odd name, great app." - National Geographic"One of the most useful apps for any nature photographer" - Outdoor Photographer Magazine"It worked perfectly. The program was dead on…" - National Geographic"One of the most powerful photography applications that I've seen, one that you'll be using for years and years." - AdoramaTVThe Photographer's Ephemeris (TPE) helps plan outdoor photography shoots in natural light, particularly landscape and urban scenes. It's a map-centric Sun, Moon and Milky Way calculator: see how the light will fall on the land, day or night, for any location on earth.Whether you need at-a-glance information on today's sun, moon and Milky Way data for your current location, or need to plan a precise alignment of the full moon for a future shoot, TPE has the tools you need. The combination of augmented reality, line-of-sight analysis and visual search supports the most sophisticated photo planning needs.Night mode features a 3D representation of the Milky Way, pole stars and major constellations directly over the map, so you can easily visualize exactly how to align your shot.Research and save your own list of favorite photographic locations, using 7 different map types (including 2 offline maps) and save them in your locations list. Favorite locations are always displayed right on the map.Advanced features including visual sun and moon search, automatic time zone and elevation detection, correction for atmospheric refraction and height above the horizon, ensuring that you have the best possible information for planning your shoot.You can even determine when the sun or moon will rise from behind nearby hills and mountains.Key features:- Time/direction of sun, moon, and galactic center rise/set- View azimuth and altitude of sun/moon and the galactic center for any time of day/night- Milky Way, stars and asterisms visualization via 3D map overlay- Moon phase and % illumination- Civil, nautical and astronomical twilight- 2 topographic maps- 2 offline map types- Movable map pins: drag and drop the pin exactly where you need it- Map autorotation using the compass (on compatible devices)- Shadow lengths displayed to scale on map- Save any location you want: no fixed lists- Celestial events including moon phases, apogee, perigee, solstice, equinox- Solar eclipse details for 2024: maps, simulator, times- Network connection not required for rise/set time, azimuths and sun/moon positionAdvanced features:- Augmented reality view for on location scouting- Saved location synchronization between devices and the free TPE web app- Automatic time zone detection- Elevation above sea level- Distance, bearing and elevation angle between any two points- Location import/export from KML- Magnetic north option- Configurable timeline display- Sun/moon transit times- 'Golden hour' time/duration- Light pollution overlay- Event countdown and notificationsGeek features:- Line of sight analysis- Find when. World Night Light Map, Light Pollution Map - citylabmap.com Various websites have maps showing where light pollution is the strongest across the U.S, as well as the world. For instance, the website Light Pollution Map shows that the eastern half of the U.S. has the most light pollution (as evidenced by a lot of yellow on the map), with similar high amounts of light pollution along the coast of

Light Pollution Around The World - Brilliant Maps

For Successful Stargazing: Finding Dark Skies and Ideal ConditionsEvery astronomer should look for the very best sites near them where the conditions are best for stargazing and observing astronomical objects. This is something that is getting more difficult as light pollution spreads and becomes a bigger problem. Please check out this page I’ve written to learn more about the effects of light pollution on astronomy and astrophotography.The International Dark-Sky Association4 works to preserve dark skies and reduce light pollution.If you want to know where the best skies close to you are located, then you can check one of the many useful apps available, such as the Light Pollution Map available on mobile. This is one I use all the time when I’m out looking for better conditions.The best places for astronomy are away from big cities. Go to parks, forests, and deserts beside the ocean to find spots that are not saturated with lights. Consult the Bortle scale and if you can find anything 5 or less, you’ll do much better when you try to observe distant objects or photograph those faint deep sky objects I talk about on this website.Capturing the Cosmos: Astrophotography for BeginnersAstrophotography is a technique used by amateur astronomers to capture images of celestial objects using cameras and telescopes.I’m not going to go deep into this topic on this page because this website covers everything you need to learn about astrophotography. Also, send me an email with any questions you have about astrophotography, and I’ll be very happy to help you.Joining the Amateur Astronomy Community: Clubs, Events, and ResourcesAstronomy clubs and societies exist worldwide, providing opportunities for amateur astronomers to connect and share their passion.Amateur astronomers often participate in star parties, where they gather to observe and share their knowledge and equipment.Besides the community and social aspects of meeting like-minded astronomers like yourself, there is so much to learn in astronomy, both in theory and practise.I joined the British Astronomical Association to link up with others more experienced than myself and to broaden my knowledge of astronomy. I suggest you join your local astronomy club or association, as it is money well spent.Personally speaking, I love the opportunity to talk to others about my passion astrophotography and explain the details of how I take those amazing photos. I have also felt that this is a hobby that I want to share with others, especially as so

Detailed map of light pollution around the world

Area—is crucial, especially in residential or urban areas where light pollution can be a concern. Properly designed lighting systems focus light precisely where it’s needed, reducing the impact on surrounding areas.Color Temperature and CRI (Color Rendering Index): The color temperature of the lights affects how the light appears to the human eye. A higher color temperature (cooler light) is typically used in sports lighting as it mimics daylight, improving visibility. The Color Rendering Index (CRI) measures how accurately colors are rendered under the light source; a higher CRI is preferred for sports lighting to ensure that the playing surface and equipment are seen in true colors.Pole Height and Placement: The height and placement of lighting poles are critical for achieving optimal light distribution. Taller poles are generally required for larger fields to ensure that the light reaches all areas evenly. For smaller courts, lower poles with more focused beams may be appropriate. Proper pole placement ensures that the entire area is illuminated without creating shadows or glare, contributing to a safer and more enjoyable experience for players and spectators.Sports-Specific Lighting Standards: Sports-specific lighting standards, including those set by the IES or the NCAA, ensure optimal visibility and safety. These standards specify lumen levels, uniformity ratios, CRI, and fixture placement, all tailored to meet the unique requirements of each sport and competition level.Read more: Roundtable Expert Interview: Insights on the Planning & Design of LED Sports Lighting Importance of a Photometric StudyA photometric study is a crucial part of LED sports lighting design. This study uses computer simulations to model how light will be distributed across the playing area. By creating a detailed map of light levels, a photometric study allows planners to visualize potential issues such as shadows, dark spots, or areas of excessive brightness. Conducting this study before installation enables adjustments to be made in the design phase, reducing the risk of costly changes later.Photometric studies also ensure that the lighting design meets all relevant standards and regulations. Whether it’s achieving the required foot-candle levels for a particular sport or complying with local ordinances on light pollution, a photometric

Detailed map of light pollution around the world - Geoawesome

Can search for coordinates of a location. Either way, you can view the site on the map, pin it and save it for later.As with your current location, any searched location shows the Sunrise, Sunset, Moonrise and Moonset.2. Augmented RealityThe first time I tapped the Augmented Reality (AR) icon, I was blown away! The Photographer’s Ephemeris uses the gyroscope, compass and camera of your smartphone to create an immersive AR projection.Holding your smartphone upright, you have an accurate world view with several graphic overlays.The compass is incredibly detailed and accurate and is represented on the screen with vertical lines at East, South East, South, etc. There’s also a scrolling bar that shows the compass direction and also a horizon gauge to the side.Several horizontal lines represent the Moonset, Civil Twilight Start, Sunrise, Horizon, Moonrise, Sunset and Civil Twilight End.Two arcing lines, one to track the path of the Sun and the other to follow the course of the moon, allow photographers to accurately predict how these light sources will influence their final image.These pathways are also represented along the bottom with the same timeline as shown on the Map tab.At night, there’s a ghosted overlay of the moon and star constellations in the sky.If you need to set up for a landscape shot or want to shoot the sunrise, sunset or the moon, the AR function is ideal. It allows you to position yourself in the scene, and by panning the horizon with your smartphone, you see exactly where everything is going to happen before it happens.Plus, you can do so for any given date or time by simply sliding the timeline back and forward!I would imagine that the AR function of TPE will chew through the battery faster than the other modes, so ensure your smartphone is charged-up or you have a portable power bank.Unfortunately, I can’t show you Augmented Reality in action while in my favourite location – out on the street in Shibuya, Tokyo, so you’ll have to settle for South Yarra, Victoria.3. Use TPE To Set A Future DateOne of The Photographer’s Ephemeris’s best features is the ability to time travel – or set a future date.Regardless of your being at home or some far-reaching corner of the globe, you can place yourself there with the map. What’s more, you set the date and time to view the direction of the Sun and Moon as well as a range of other data, including light pollution, star overlays and celestial events.You can shift the date back and forward single days or in more significant jumps. Or, tap on the date to open up a window to set a future or past date. Time travel!TPE also displays all. World Night Light Map, Light Pollution Map - citylabmap.com Various websites have maps showing where light pollution is the strongest across the U.S, as well as the world. For instance, the website Light Pollution Map shows that the eastern half of the U.S. has the most light pollution (as evidenced by a lot of yellow on the map), with similar high amounts of light pollution along the coast of