Science Score: 44.0%
This score indicates how likely this project is to be science-related based on various indicators:
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✓CITATION.cff file
Found CITATION.cff file -
✓codemeta.json file
Found codemeta.json file -
✓.zenodo.json file
Found .zenodo.json file -
○DOI references
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○Academic publication links
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○Academic email domains
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○Institutional organization owner
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○JOSS paper metadata
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○Scientific vocabulary similarity
Low similarity (11.1%) to scientific vocabulary
Keywords
Repository
✨ Star charts and maps in Python
Basic Info
- Host: GitHub
- Owner: steveberardi
- License: mit
- Language: Python
- Default Branch: main
- Homepage: https://starplot.dev
- Size: 172 MB
Statistics
- Stars: 65
- Watchers: 8
- Forks: 14
- Open Issues: 9
- Releases: 52
Topics
Metadata Files
README.md
Starplot
Starplot is a Python library for creating star charts and maps of the sky.
- ⭐ Zenith Plots - shows the entire sky at a specific time and place
- 🗺️ Map Plots - including many map projections
- 🌃 Horizon Plots - shows the horizon at a specific time and place
- 🔭 Optic Plots - shows what you'll see through an optic (e.g. telescope) at a specific time and place
- 🪐 Planets and Deep Sky Objects (DSOs) - more than 14,000 objects built-in
- 🎨 Custom Styles - for all objects
- 📥 Export - png, svg, jpeg
- 🚀 Data Backend - powered by DuckDB + Ibis for fast object lookup
- 🧭 Label Collision Avoidance
Examples
Zenith plot of the stars from a specific time/location:

Map around the constellation Orion:

The Pleiades star cluster, as seen through a refractor telescope from a specific time and location:

Basic Usage
To create a star chart for tonight's sky as seen from Palomar Mountain in California:
```python from datetime import datetime from zoneinfo import ZoneInfo
from starplot import ZenithPlot, Observer, styles, _
tz = ZoneInfo("America/Los_Angeles") dt = datetime.now(tz).replace(hour=22)
observer = Observer( dt=dt, lat=33.363484, lon=-116.836394, )
p = ZenithPlot( observer=observer, style=styles.PlotStyle().extend( styles.extensions.BLUEMEDIUM, ), resolution=4096, autoscale=True, ) p.constellations() p.stars(where=[.magnitude < 4.6]) p.constellation_labels() p.horizon() p.export("starchart.png") ```
Documentation
Demo
For a demo of Starplot's zenith plots, check out:
Sky Atlas - Star Chart Creator
Discord
Chat with other starplotters on our Discord server:
https://discord.gg/WewJJjshFu
Contributing
Contributing to Starplot is welcome and very much appreciated! Please see here for details.
Coming Soon
- 🧮 Coordinate system helpers
- 🌑 Planet moons
- ✴️ Custom markers
- ☄️ Comet model
- 😄 🔭 Clear skies
See more details on the Public Roadmap
License
Owner
- Name: Steve Berardi
- Login: steveberardi
- Kind: user
- Location: San Diego, CA
- Website: http://steveberardi.com
- Repositories: 6
- Profile: https://github.com/steveberardi
Citation (CITATION.cff)
cff-version: 1.2.0
title: Starplot
message: >-
If you use this software, please cite it using the
metadata from this file.
type: software
authors:
- given-names: Steve
family-names: Berardi
orcid: https://orcid.org/0009-0005-6106-1450
repository-code: 'https://github.com/steveberardi/starplot'
url: 'https://starplot.dev'
abstract: >-
Starplot is a Python library for creating star charts and
maps of the sky
keywords:
- astronomy
- maps
- charts
- graphs
- plotting
license: MIT
version: 0.16.0
date-released: '2025-08-31'
GitHub Events
Total
- Create event: 35
- Release event: 13
- Issues event: 30
- Watch event: 24
- Delete event: 22
- Issue comment event: 47
- Push event: 87
- Pull request review event: 1
- Pull request event: 50
- Fork event: 4
Last Year
- Create event: 35
- Release event: 13
- Issues event: 30
- Watch event: 24
- Delete event: 22
- Issue comment event: 47
- Push event: 87
- Pull request review event: 1
- Pull request event: 50
- Fork event: 4
Issues and Pull Requests
Last synced: 4 months ago
All Time
- Total issues: 9
- Total pull requests: 20
- Average time to close issues: about 1 month
- Average time to close pull requests: about 3 hours
- Total issue authors: 9
- Total pull request authors: 2
- Average comments per issue: 1.22
- Average comments per pull request: 0.0
- Merged pull requests: 17
- Bot issues: 0
- Bot pull requests: 0
Past Year
- Issues: 9
- Pull requests: 19
- Average time to close issues: about 1 month
- Average time to close pull requests: about 3 hours
- Issue authors: 9
- Pull request authors: 2
- Average comments per issue: 1.22
- Average comments per pull request: 0.0
- Merged pull requests: 16
- Bot issues: 0
- Bot pull requests: 0
Top Authors
Issue Authors
- HealthyPear (6)
- codingfar (4)
- hemisemidemipresent (3)
- bathoorn (2)
- EsatAkkasoglu (2)
- hettlage (1)
- ricardo-dlc (1)
- 13-Characters (1)
- zkbt (1)
- ea1ii (1)
- steveberardi (1)
- SultanOrazbayev (1)
- sizzzzlerz (1)
- heinkurz (1)
- thunkii (1)
Pull Request Authors
- steveberardi (67)
- HamBoneGS (6)
- hemisemidemipresent (2)
- bathoorn (2)
- HealthyPear (1)
- Niphredil123 (1)
- lgrossard (1)
Top Labels
Issue Labels
Pull Request Labels
Packages
- Total packages: 1
-
Total downloads:
- pypi 574 last-month
- Total dependent packages: 0
- Total dependent repositories: 1
- Total versions: 54
- Total maintainers: 1
pypi.org: starplot
Star charts and maps of the sky
- Homepage: https://starplot.dev
- Documentation: https://starplot.dev
- License: MIT License
-
Latest release: 0.16.0
published 4 months ago
Rankings
Maintainers (1)
Dependencies
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- actions/setup-python v4 composite
- actions/checkout v3 composite
- actions/setup-python v4 composite
- base latest build
- python 3.9.17-bullseye build
- adjustText >= 0.8
- matplotlib >= 3.5.1
- numpy >= 1.22.1
- pandas >= 1.4.0
- pydantic >= 1.10.8
- skyfield >= 1.41
- black ==23.3.0 development
- flake8 ==6.0.0 development
- flit ==3.9.0 development
- imagehash ==4.1.0 development
- mypy ==1.3.0 development
- pytest ==7.3.2 development
- pytest-cov ==4.1.0 development
- adjustText ==0.8
- matplotlib ==3.5.1
- numpy ==1.22.1
- pandas ==1.4.0
- pydantic ==1.10.8
- skyfield ==1.41
- actions/checkout v3 composite
- google-github-actions/auth v1 composite
- google-github-actions/setup-gcloud v1 composite