Neomano Astro Events (Local Sky + ISS)

Inputs#

• Location: lat, lon (or city).
• Timezone (IANA) or UTC offset (default: infer/ask; Ecuador mainland is UTC-5).
• Horizon constraints (optional): open/urban.

One-time setup#

Create venv and install deps:

bash

python3 {baseDir}/scripts/bootstrap_venv.py

Note: the .venv/ directory is intentionally not shipped in the skill package; each user creates it locally.

Run#

bash

python3 {baseDir}/scripts/run.py tonight --lat -2.039958 --lon -79.892266 --tz "America/Guayaquil"
python3 {baseDir}/scripts/run.py next --lat -2.039958 --lon -79.892266 --tz "America/Guayaquil" --days 7

Privacy / offline-by-design#

This skill computes everything locally.

• No paid APIs.

• No external astronomy services.

• It only downloads public datasets (free):

  • JPL ephemeris file (DE421) used by Skyfield.
  • ISS TLE text from Celestrak (for ISS passes).

What it outputs#

• Twilight window (astronomical dusk → dawn)
• Moon phase + rise/set
• Planets: best viewing window (altitude above horizon)
• ISS passes (rise / culminate / set) for the next hours