Meriç Dağlı

The animated sky needs WebGL 2. Time, weather and portfolio controls remain available.

Sky credits

Moon & stars

Milky Way

Deep Star Maps 2020 by NASA/Goddard Space Flight Center Scientific Visualization Studio, Ernie Wright; ESA/Gaia/DPAC. The diffuse galactic map is converted from linear EXR to sRGB WebP. Bright Hipparcos/Tycho stars are omitted from this map and rendered separately.

NASA Deep Star Maps
Moon

Lunar imagery by NASA’s Scientific Visualization Studio, Ernie Wright / USRA, LRO / LROC. The December 2025 color map is converted from TIFF to WebP. Surface normals are derived from NASA LRO / LOLA elevation data.

NASA Moon Kit
Stars

HYG Database v4.1 by David Nash, derived from the Hipparcos, Yale, and Gliese catalogs. Adapted to a binary catalog and names file for stars through apparent magnitude 8, retaining J2000 positions, color indices, and proper motions. Both adapted files are distributed under CC BY-SA 4.0.

HYG Database CC BY-SA 4.0
Astronomy

Astronomy Engine by Don Cross provides astronomical calculations. Used under the MIT license.

Astronomy Engine

Light & atmosphere

Clouds

Cloud shapes and high cloud layers are generated procedurally from seeded noise, humidity, and turbulence. Weather conditions guide their appearance.

Color

Stephen Hill’s ACES RRT/ODT fit, adapted from Baking Lab. Used under the MIT license.

Baking Lab
Sun

Solar limb darkening uses a grey-atmosphere linear law. The optical glow is a visual approximation based on the visible solar disc and cloud transmittance.

Limb-darkening research · Howarth, 2011

Software licenses

Astronomy Engine MIT
MIT License

Copyright (c) 2019-2023 Don Cross <cosinekitty@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Baking Lab MIT
MIT License

Copyright (c) 2016 MJP

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.