ABOVE TONIGHT — THIRD-PARTY NOTICES Only the material listed here is offered under these licences; the rest of Above Tonight is not. Astronomy Engine 2.1.19 Title: Astronomy Engine Author: Don Cross Source: https://github.com/cosinekitty/astronomy/tree/61dc07020aaa6885d2c7f688a4d82beaf6edb9ef Licence: MIT (below). Used unmodified; it is served as a separate script file. MIT License Copyright (c) 2019-2023 Don Cross 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. HYG Database v4.1 Title: HYG Database (Hipparcos-Yale-Gliese), v4.1 Author: David Nash / Astronexus; compiled from the Hipparcos, Yale Bright Star and Gliese catalogues Source: https://github.com/astronexus/HYG-Database/tree/3bf37f4b2d5460e1278286320d1d62fab9b493c1 (now also published at https://codeberg.org/astronexus/hyg) Licence: Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0), https://creativecommons.org/licenses/by-sa/4.0/ (legal code: https://creativecommons.org/licenses/by-sa/4.0/legalcode). The material is provided without warranties; see section 5 of the licence. Changes by Above Tonight: we kept 743 of the catalogue's records and some of its columns, converted right ascension from hours to degrees, and added each star's constellation. Positions, distances and magnitudes are otherwise as published. Adapted material: the admitted HYG rows in data/provenance/hyg-admitted-743.csv and the HYG-derived star fields in data/provenance/constellation-pack.json and data/sky-runtime.json (served as /data/sky-runtime.json). We offer these under CC BY-SA 4.0 as well. D3-Celestial constellation data Title: D3-Celestial data (constellation names, star names and designations, constellation lines) Author: Olaf Frohn Source: https://github.com/ofrohn/d3-celestial/tree/7e720a3de062059d4c5400a379146a601d9010e0 Licence: BSD 3-Clause (below). Changes by Above Tonight: we keep the English and Latin names only, select fields, and combine them with the star data above. Upstream: D3-Celestial itself credits other sources for its data, among them the International Astronomical Union's constellation list, XHIP (Anderson and Francis, 2012) and further catalogues on VizieR; see its README at the source link. We acknowledge them here. Copyright (c) 2015, Olaf Frohn All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Above Tonight modifies and combines selected catalogue fields for its sky map. No endorsement by the source projects is expressed or implied. Built-in city list Our own compilation of geographic coordinates, rounded elevations and IANA time-zone identifiers. No third-party licence applies.