Celestial Coordinates

Q: What is a Claude Code skill and how does the Celestial Coordinates skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Celestial Coordinates is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Product · Sub-category: product-misc · Last updated: 2026-05-21

Celestial coordinate systems and sky positioning. Covers horizon (altitude-azimuth), equatorial (right ascension-declination), ecliptic, and galactic systems; epoch and precession; coordinate transformations; planisphere use; and practical sky-locating from any latitude and date. Use when locating objects, planning observations, converting catalog coordinates, or teaching the geometry of the sky.

About this skill (catalog notes)

Celestial Coordinates is published as a SKILL.md file in this catalog. At roughly 1,980 words the SKILL.md is on the longer end of the catalog distribution.

Indexed lastmod: 2026-05-21
Catalog position: Product · product-misc
Indexed related skills: 10

How Celestial Coordinates fits the catalog

Celestial Coordinates sits in the Product category under the product-misc sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

A coordinate system tells you where something is. On Earth we use latitude and longitude. In the sky we need analogous systems, but with a complication: the sky rotates. An object's position depends on where the observer is standing, when they look, and which frame of reference they choose. This skill catalogs four celestial coordinate systems, the transformations between them, the corrections that matter (precession, nutation, aberration, refraction), and practical procedures for locating objects with a planisphere, a star chart, or a telescope's setting circles.

What this skill does

Celestial Coordinates is a community-contributed Claude Code skill in the product-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/celestial-coordinates/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when locating objects, planning observations, converting catalog coordinates, or teaching the geometry of the sky.

Who uses this skill

The Celestial Coordinates Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/celestial-coordinates
curl -L https://claudskills.com/skills/celestial-coordinates/SKILL.md \
  -o ~/.claude/skills/celestial-coordinates/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/celestial-coordinates/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/celestial-coordinates/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\celestial-coordinates\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Celestial Coordinates Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/celestial-coordinates/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Celestial Coordinates skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Celestial Coordinates skill?

Use Celestial Coordinates when your Claude Code task falls under the Product category — specifically in the product misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Celestial Coordinates" or describe the task and let Claude pick). Browse related skills at /category/product/.

What is a Claude Code skill and how does the Celestial Coordinates skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Celestial Coordinates is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Celestial Coordinates [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/celestial-coordinates/

BibTeX

@misc{celestial-coordinates-2026,
  author    = {ClaudSkills},
  title     = {Celestial Coordinates [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/celestial-coordinates/}
}

Embed this skill

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Badge

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