Meteorium — Meteor Dust Trails

Meteorium is an astronomy app that scientifically visualises the "dust
trails" — the ribbons of comet dust that give rise to meteor showers.

It shows 60,000 dust grains released by comet 109P/Swift-Tuttle, the
parent of the Perseid meteor shower, over its eight perihelion returns
from 1079 to 1992. Each grain is ejected from the comet's nucleus
around perihelion and followed by full orbital integration including
planetary gravity and solar radiation pressure, then rendered in 3D
against NASA's all-sky star maps. The comet's position at the moment of
ejection is anchored to the JPL Horizons ephemeris, which uses an orbit
solution fitted to the observations of each historical apparition.

The Perseid forecasts for 2026-2035, the Leonid forecasts for 2030-2035 and the
Geminid dust trails (parent 3200 Phaethon) are included free as well.

Features:
• 3D dust trails coloured by ejection year
• Multiple viewpoints (ecliptic north/south, latitude sweep, Sun,
ground, comet) plus a free view that tours the highlights every 10 s
• Run time forward/backward at 10-10,000x to watch the trails evolve
• Realistic Milky Way (NASA Deep Star Maps 2020), constellation lines
and names, planets
• 11 languages: English, Japanese, Chinese (Traditional and Simplified),
Korean, Spanish, Portuguese, French, German, Czech, Polish

Why do meteor showers return on the same dates every year? How does
comet dust spread through the solar system? Meteorium shows you the
three-dimensional structure and its evolution over time — and from the
ground view you can simply enjoy the meteor shower itself.

Meteorium Pro (auto-renewable subscription):
• The dust trails of every meteor shower, and epoch-matched reproduction datasets
• Observed orbits (real data) from the Global Meteor Network (2018-2026)
and the IAU Meteor Data Center (CAMS, SonotaCo, EDMOND and more)
• Forecasts for each shower (the years of 2026-2035 near its dataset epoch)
• Export of images, video and data
¥200 a month or ¥2,000 a year in Japan (local prices elsewhere). The Pro data
is downloaded after purchase. The paper's published Leonid data,
the Perseid 2026-2035 and Leonid 2030-2035 forecasts and the Geminid dust trails remain free. Payment is charged to your Apple ID at
confirmation of purchase; the subscription renews automatically unless cancelled
at least 24 hours before the end of the current period. Manage or cancel it in
your App Store account settings.
Terms of Use: https://nu-sx.github.io/METEORIUM/terms.en.html
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://nu-sx.github.io/METEORIUM/privacy-policy.en.html

All computation and rendering happen on your device, with no data collection and no ads. The app goes online only when you choose to fetch the published research datasets or the Pro data.