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Credits and data

Nothing in a Cosmoment artwork is guessed. This is the data each layer is built from, and who made it.

Cosmoment is not endorsed by NASA, ESA or any data provider.

Moon and planets

Positions from the planetary ephemeris DE421 of NASA's Jet Propulsion Laboratory (Folkner, Williams and Boggs, 2009), computed with Skyfield by Brandon Rhodes.

The Moon's surface is a photograph by Christopher Granabetter, lit again for the phase of your minute.

Stars

The Hipparcos and Tycho catalogues. Credit: ESA. Read through the Big Sky Catalog by Steve Berardi.

Milky Way

Deep Star Maps 2020. NASA/Goddard Space Flight Center Scientific Visualization Studio. Gaia DR2: ESA/Gaia/DPAC.

Nebulae, clusters and galaxies

Positions, sizes and types: OpenNGC by Mattia Verga, CC BY-SA 4.0.

Shapes of galaxies: EFIGI, Baillard et al. 2011, Astronomy & Astrophysics 532, A74.

These objects are drawn from images of the NASA/ESA Hubble Space Telescope (CC BY 4.0), with the stars removed and the colours set again for display:

Constellations

Lines and names: d3-celestial © Olaf Frohn, after IAU/Sky & Telescope.

Terrain

The skyline is produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.

The far ranges are produced using Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.

The organisations in charge of the Copernicus programme by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30. The organisations in charge of the Copernicus programme by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-90.

Places

Place names: GeoNames (geonames.org), CC BY 4.0. Time zones: timezone-boundary-builder, © OpenStreetMap contributors (ODbL).

Typefaces

Mona Sans by GitHub and Geist Mono by Vercel, both under the SIL Open Font License 1.1.