Positions vs Local Chat

Planetary Positions calculates the positions of the Sun, the Moon and all eight planets for any date and time - and shows them clearly on one screen. The calculations are based on the complete VSOP87 planetary theory and on the algorithms of Jean Meeus' "Astronomical Algorithms", including nutation, Delta T and the equation of time. POSITIONS - Heliocentric and geocentric coordinates - Ecliptic (longitude, latitude, distance) or equatorial (right ascension, declination) - Solar system view with orbits and a sky strip along the ecliptic TIME - Universal Time, Terrestrial Dynamical Time, Julian Day and Julian Ephemeris Day - Your own time zone - Step through time from 1 second to 1 year, or let it run EVENTS - find the last and next - Opposition, conjunction and greatest elongation - Equinoxes and solstices - Solar and lunar eclipses - Moon phases, perigee and apogee, lunar nodes INFO PAGES - Physical and orbital data for the Sun, the Moon and every planet - Magnitude, apparent diameter, phase and elongation - Jupiter with the current positions of its four Galilean moons - Saturn as seen from Earth, with the current ring opening - The Moon with phase, libration, node, and a rotating Earth with continents and grid - Clear illustrations explaining coordinates, conjunction, opposition, elongation, equinox, solstice, moon phases, lunar nodes, apogee and perigee, and eclipses Planetary Positions is made for everyone who wants to understand the sky - students, amateur astronomers and anyone curious about how the solar system moves.

Local Chat allows you to run the latest open language models on your Mac, iPad, and iPhone. Once you've downloaded the models, you can use the chat function even when your device is offline. Your chats remain totally private, since no internet connection is required to interact with the chatbots. It's like having your very own ChatGPT right on your device. You can choose to save your chat history on your devices or delete your chats automatically after you're finished. Any chats that you choose to save in your history will be synced via your private iCloud storage to your other devices. Try leading models from the open-source community, including Llama, Gemma, Qwen, Mistral, DeepSeek, and Kimi. Choose from different sizes to find the best fit for your device. You can also customize the chatbot's personality with a system prompt, whether you prefer a helpful assistant, an encouraging coach, a witty conversationalist, or anything else you can imagine. The chat function works with the following devices: - Mac (M1 and later) - iPhone 12 and later - iPad Pro (M1 and later) - iPad Air (4th generation and later) - iPad mini (6th generation and later) - iPad (10th generation and later) On earlier devices, you can view your chat history from your other devices synced via your private iCloud storage. Local Chat is just getting started, and we're planning to continue adding new features in the coming months. If you have any feedback about the app, we'd love to hear it at feedback@localchat.co. --- Privacy policy: https://localchat.co/privacy Terms of use: https://localchat.co/terms