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NightFall — Find Dark Skies

NightFall — Find Dark Skies at Mac App Store analyse

Shenzhen Youhua Technology Company Limited
Utilities Education Navigation
160 ratings · Power index: 468
Free Mac App Store Follow Website
Version 3.0.0
Size 67.35 Mb
Updated 3 weeks ago
Released 15 Mar 2011

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Screenshots

Description

You want to see the stars, but where? City skies glow grey, and the countryside is a question mark. NightFall answers on a map: where light pollution is lowest, how long the drive is, and what you will actually see when you get there. [9-LEVEL STAR VISIBILITY, AT A GLANCE] The map is painted in nine colors of light pollution — the warmer the color, the brighter the sky. Move the map and the crosshair instantly tells you: • Which visibility level this spot is, from "perfect skies" to "not recommended", each explained in plain words; • "What you'll see looking up": is the Milky Way visible, how many stars, whether clouds glow; • Season-by-season targets: the Sagittarius Milky Way in summer, the Orion Nebula and the Pleiades in winter; • Numbers when you want them: zenith brightness and more live folded away in "View details" — no jargon on the main screen. [PLACE CARD: IS THIS SPOT WORTH THE DRIVE?] Tap anywhere for the level, elevation, coordinates, and the estimated drive time and distance from your starting point. Share it with friends, or jump straight into Apple Maps, Amap, Baidu, or Google Maps to navigate. [STAR CHART: LOOK UP BEFORE YOU LOOK UP] A fully rendered night sky, not an illustration: • Drag to look around; scrub the timeline from sunset to sunrise, or follow the real sky live; • Light pollution has a direction: NightFall samples the horizon around you — cities light up exactly where they are; • The skyline is computed from real elevation data: in a valley the hills shield the low sky, on a summit more stars come out; • Constellation lines, the Moon and planets; tap any star for its name, altitude and magnitude; • Fully off-line: catalog, Milky Way and terrain travel inside the app — usable where there is no signal. [SEARCH AND FAVORITES] • 36 built-in stargazing spots and observatories, filtered instantly off-line; • Your own favorites support pinyin search; starting points and destinations are managed separately and stored on your device only. [DESIGNED FOR NIGHT USE] A dark interface that is easy on the eyes; adjustable overlay opacity; four base maps (road, terrain, satellite, hybrid); Simplified Chinese, Traditional Chinese and English; universal on iPhone and iPad. [ABOUT THE DATA, HONESTLY] The light pollution map is built on NOAA VIIRS night lights and the Light Pollution Atlas. It is a model estimate of zenith brightness, not a measurement, and it does not include horizon glow — real skies usually look worse than the map suggests. Seeing also depends on weather and moon phase. Full data sources and notes live in Settings → About. Tonight looks clear? Open NightFall, find somewhere dark, and look up. What's New First release: light pollution map, 9-level star visibility, place cards, off-line star chart, search and favorites. Found a problem, or know a great stargazing spot? Tell us in a review.

Estimates

Monthly Downloads > 10.3k
Est. Revenue ~ $4.21k
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Search Keywords 1

# Term Country Place Priority
1 星空指南 #3

Availability

Devices

iPhone3GS iPadWifi iPad3G iPhone4 iPodTouchThirdGen iPodTouchFourthGen iPad2Wifi iPad23G iPhone4S iPadThirdGen iPadThirdGen4G iPhone5 iPodTouchFifthGen iPadFourthGen iPadFourthGen4G iPadMini iPadMini4G iPhone5c iPhone5s iPadAir iPadAirCellular iPadMiniRetina iPadMiniRetinaCellular iPhone6 iPhone6Plus iPadAir2 iPadAir2Cellular iPadMini3 iPadMini3Cellular iPodTouchSixthGen iPhone6s iPhone6sPlus iPadMini4 iPadMini4Cellular iPadPro iPadProCellular iPadPro97 iPadPro97Cellular iPhoneSE iPhone7 iPhone7Plus iPad611 iPad612 iPad71 iPad72 iPad73 iPad74 iPhone8 iPhone8Plus iPhoneX iPad75 iPad76 iPhoneXS iPhoneXSMax iPhoneXR iPad812 iPad834 iPad856 iPad878 iPadMini5 iPadMini5Cellular iPadAir3 iPadAir3Cellular iPodTouchSeventhGen iPhone11 iPhone11Pro iPadSeventhGen iPadSeventhGenCellular iPhone11ProMax iPhoneSESecondGen iPadProSecondGen iPadProSecondGenCellular iPadProFourthGen iPadProFourthGenCellular iPhone12Mini iPhone12 iPhone12Pro iPhone12ProMax iPadAir4 iPadAir4Cellular iPadEighthGen iPadEighthGenCellular iPadProThirdGen iPadProThirdGenCellular iPadProFifthGen iPadProFifthGenCellular iPhone13Pro iPhone13ProMax iPhone13Mini iPhone13 iPadMiniSixthGen iPadMiniSixthGenCellular iPadNinthGen iPadNinthGenCellular iPhoneSEThirdGen iPadAirFifthGen iPadAirFifthGenCellular iPhone14 iPhone14Plus iPhone14Pro iPhone14ProMax iPadTenthGen iPadTenthGenCellular iPadPro11FourthGen iPadPro11FourthGenCellular iPadProSixthGen iPadProSixthGenCellular

Pricing by country

Country Price
Canada 2.99 CAD
China 15 CNY
France 1.99 EUR
Germany 1.99 EUR
Italy 1.99 EUR
Netherlands 1.99 EUR
Portugal 1.99 EUR
Spain 1.99 EUR
Poland 2.29 EUR
UK 1.99 GBP
India 199 INR
Japan 300 JPY
Korea, Republic Of 3300 KRW
Poland 9.99 PLN
Russia 199 RUB
Turkey 99.99 TRY
USA 1.99 USD
Korea, Republic Of 2.19 USD
Ukraine 1.99 USD

Version History

Latest: 3.0.0

You want to see the stars, but where? City skies glow grey, and the countryside is a question mark. NightFall answers on a map: where light pollution is lowest, how long the drive is, and what you will actually see when you get there.
v2.3.1 3 weeks ago