Digital is a graphical logic circuit simulator with finite state machines, automated testing, VHDL and Verilog export, and FPGA support.
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Category: Scientific
Qucs-S – graphical interface for SPICE circuit simulation
Qucs-S is a graphical circuit simulator supporting multiple SPICE engines, analogue and RF analysis, component models and waveform plots.
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logisim-evolution – design and simulate digital logic circuits
logisim-evolution lets you design and simulate digital logic circuits with timing diagrams, VHDL integration and reusable subcircuits.
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Celestia – real-time 3D visualization of space
Celestia is a real-time 3D space simulator for exploring planets, stars, galaxies, spacecraft and other objects across the universe.
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Stellarium – open source planetarium
Stellarium is a realistic planetarium with huge star catalogues, sky cultures, telescope control, eclipse simulation and observing tools.
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AstroImageJ – ImageJ for Astronomy
AstroImageJ (AIJ) is a simple and powerful tool for astronomical image analysis and precise photometry.
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SkyChart / Cartes du Ciel – planetarium software
SkyChart is software that lets users draw sky charts, making use of the data in 16 catalogs of stars and nebulae.
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KStars – desktop planetarium for KDE
KStars is free, open source, cross-platform Astronomy Software by KDE. It provides an accurate graphical simulation of the night sky.
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OpenSpace – interactive data visualization software
OpenSpace is an interactive data visualization software designed to visualize the entire known universe.
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Aladin Desktop – main application of the Aladin Sky Atlas suite
Aladin Desktop is software to visualize and manipulate digitized astronomical images or full surveys.
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Virtual Moon Atlas – for Moon observation or survey
Virtual Moon Atlas is software that allows users to observe and study the moon and its surface.
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Ginga – image viewer and toolkit
Ginga is a toolkit designed for building viewers for scientific image data in Python, visualizing 2D pixel data in NumPy arrays.
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Digital Universe Atlas – open source planetarium software
Digital Universe Atlas is a free open source software planetarium application, available under the terms of the Illinois Open Source License.
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ORSA – Orbit Reconstruction, Simulation and Analysis
Orbit Reconstruction, Simulation and Analysis (ORSA) is a framework for scientific grade Celestial Mechanics computations.
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PreviSat – satellite tracking software for observing purposes
PreviSat is a satellite tracking software for observing purposes. It shows positions of artificial satellites in real-time or manual mode.
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mars-sim – general purpose simulator depicting the early development of human settlements on Mars
mars-sim is a Java-based open source project that simulates the activities of the first generation of settlers on Mars.
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SkyViewer – displays HEALPix-based skymaps
SkyViewer is an OpenGL based program to display HEALPix-based skymaps, saved in FITS format files. Written in C++.
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Cosmonium – 3D astronomy and space exploration program
Cosmonium is a 3D astronomy and space exploration program.
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marshmallow – object serialization and data validation
marshmallow validates and transforms structured application data with declarative schemas, custom fields, nested objects, and serialization.
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GX – framework for data quality validation
GX validates data using reusable expectations, validation suites, checkpoints, and readable reports for data quality workflows and pipelines.
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