Christopher KybaSep 26, 2024

New preprint by @salvabara asks whether it's possible to reconcile observations of the rate of increasing #LightPollution from #GlobeAtNight and #VIIRS_DNB: https://arxiv.org/pdf/2409.13111

Conclusion: it's *possible* that they are in agreement, but it requires assuming that there is a lot of increase in glare affecting the GaN observers.

Salva, I didn't quite understand whether you model a shift in which more of the light is emitted horizontally, not causing glare, but just brightening the sky?

Christopher KybaFeb 27, 2024

The #GlobeAtNight campaign for March 2024 will run from March 1-10. We urgently need people from around the world to look for #Orion in the sky, and report back what it looks like here: https://globeatnight.org/

Please share with your networks, including off Mastodon!

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#CitizenScience #LightPollution

Home - Globe At Night

Christopher KybaJan 7, 2024

I just submitted my first #GlobeAtNight #CitizenScience observation of 2024!

This is also my first observation with their new webapp, check it out: https://app.globeatnight.org/?constellation=orion

(Link is for the constellation Orion)

Globe At Night | App

Christopher KybaNov 30, 2023

I'm very honored to have had my #LightPollution work within the #GlobeAtNight #CitizenScience project recognized by the first ever #WissenDerVielen23 award! https://www.buergerschaffenwissen.de/forschungspreis/preistraegerinnen2023

I plan to use the prize money to do a follow up of the study that the prize was awarded for: https://www.science.org/doi/10.1126/science.abq7781

(Photo from: https://wisskomm.social/@wissenschaftimdialog/111500035151998762)

Exzellente Forschung durch das Wissen der Vielen: Unsere Preisträger*innen | Bürger schaffen Wissen

Der 2023 erstmals ausgeschriebene Wissen der Vielen – Forschungspreis für Citizen Science würdigt exzellente wissenschaftliche Leistungen in der Anwendung des Citizen-Science-Ansatzes. Die Verleihung fand am 29. November 2023 im Rahmen des Forum Citizen Science in Freiburg statt. Hier stellen wir die drei Preisträger*innen vor.

Show threadChristopher KybaOct 31, 2023

@stfn I don't know where you are, but it's almost certain that the problem is much worse than it needs to be.

Cities need artificial light, but the way we are applying it is often extraordinarily inefficient. You can help track how sky brightness is changing by taking part in #GlobeAtNight once a year: https://globeatnight.org/

(In my opinion, February is the best time to take part)

Home - Globe At Night

Christopher KybaAug 12, 2023
Puschnig et al. report at #ALAN2023 that the sky over Vienna has become much bluer in recent years. This is consistent with one of the hypotheses for why the #GlobeAtNight #CitizenScience data report such different trends over time. The VIIRS DNB has no sensitivity to blue light, but it's the part of the spectrum that human night vision is most sensitive to.
@richh has movedApr 19, 2023
We're coming towards the end of the #Globeatnight April campaign. If you haven't already, please go outside and report how much of of the constellation Leo you can see (full instructions: https://globeatnight.org/campaigns/) and help track light pollution. #science #citizenscience #lightpollution #astronomy #stargazing #darksky
Campaigns - Globe At Night

PeterFeb 20, 2023

another good night to share my optical recognition on #globeatnight
https://globeatnight.org/webapp/

#citizenscience #darksky #lightpollution #astronomy #stargazing #orion

Globe at Night Webapp

Show thread@richh has movedJan 30, 2023

If you don't have access to an appropriate device, you can also print out a chart which shows the stars of Orion at different magnitudes. Then report the faintest magnitude visible through their web portal. This is best done when there's no moon, but if you're in an often-cloudy area, do what you can!

https://www.globeatnight.org/6-steps.php

#citizenscience #astronomy #darksky #pollution #lightpollution #lossofthenight #darkskymeter #globeatnight

Globe at Night - 6 Steps

Show thread@richh has movedJan 30, 2023

Dark Sky Meter is an iOS-only* app for doing quick/dirty sky-luminance ratings. I pull over sometimes when driving at night to grab a quick value somewhere I don't go often (and can't stop for 20mins to do a proper observation).

https://darkskymeter.com/app.html

* The camera has to be categorised, which is impracticable for '000s of Android devices, but achievable on the smaller # of iOS devices.

#citizenscience #astronomy #darksky #pollution #lightpollution #lossofthenight #darkskymeter #globeatnight

DDQ Darkskymeter FAQ