Light Pollution Map 4+

Sky brightness, VIIRS and SQM

Jurij Stare

Designed for iPad

    • $4.99

Screenshots

Description

The map displays VIIRS/World Atlas/Clouds/Aurora/IAU observatories and the user SQM measurements overlay over Microsoft Bing base layers (road and hybrid Bing maps).

The primary use is to show VIIRS/DMSP data in a friendly manner, but over time it also included some other interesting overlays that concern light pollution like SQM/SQC, World Atlas 2015 zenith brightness, clouds, aurora and IAU observatories. If you have a permanent SQM reader installed you can add it to the map by sending me an e-mail.

If you want an analysis of radiance (VIIRS/DMSP) changes over a period of time, then please use the Lighttrends application (look under Help).

Please send comments and requests for new features via email (look under help)

Functionalities:
- VIIRS, Sky Brightness (World Atlas 2015), Cloud coverage and Aurora forecast layers
- VIIRS and Sky Brightness layers can be displayed in color blind friendly colors
- Road & Satellite base maps
- Cloud animation for the last 12 hours
- Get detail radiance and SQM values from layers at a click. For World Atlas 2015, you also get Bortle class estimation.
- SQM, SQM-L, SQC, SQM-LE, SQM readings submitted by users
- Submit your own SQM (L) readings
- Observatories layer
- Save your favorite locations
- Distance measurement tool with azimuth angle report
- Offline mode (Sky brightness map and a base map are saved to your device, so it will be displayed when you are offline)

What’s New

Version 1.1.21

- VIIRS chart now has an option to display monthly values
- Fixed trailing artefact produced by the popup window on some devices
- Fixed the issue of previously downloaded offline maps not showing after app update
- Fixed the issue of search bar not showing when there are too many users on the server

Ratings and Reviews

4.2 out of 5
24 Ratings

24 Ratings

Ggjgv ,

Good app

I’ve used the web based version for some time but thought I’d try the app. Overall it’s great. Understanding some of the values being listed and what it means for your dark sky experience takes a little leg work. I had to go and actually read part of the paper that goes along with the underlying data set. For me the salient figure would be the ratio listed whenever you click on a point in the map. This ratio is the ratio of the artificial brightness from pollution over the natural brightness of the night sky. Per the paper looking straight up anything 1% or less is about as good as you’re going to get (middle of the ocean would be 0% but 1% is about as good if not looking at the horizon). Haven’t looked at every feature so far but overall app works great but the lag to get stats when you click on a location gets tedious.

-hicketre2006- ,

Very Nice

Jurij: Great app! Certainly a very useful tool for all kinds of things. I found it as someone had linked to it from Reddit. People like to know where to go to stargaze, or see the northern lights. Take care!

Nevadaishome ,

Great with some exceptions

I love this app and am optimistic they will update it to be more user-friendly soon. I’d like a user tutorial, and instead of technical labels in the overlay settings, that there were layperson labels. Also on the main map screen there are tools in the top left that have no labels so I don’t know what they do.

Developer Response ,

If you didn't find the information under help, then please contact me via email. I'm constantly updating the help file with new information and would be grateful for any suggestions.

App Privacy

The developer, Jurij Stare, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Supports

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

You Might Also Like

Meet Star Gazers
Navigation
Locationscout - Photo Spots
Travel
Spyglass
Navigation
Eclipse Run
Navigation
Theodolite
Navigation
US Public Lands
Travel