Sirious

Sirious is a grumpy alignment daemon embedded in a digital finderscope. He fuses IMU data, a small display, and a cranky personality to help you point telescopes at celestial objects with minimal human embarrassment.

Overview

Sirious provides:

• live alignment guidance using IMU/compass fusion,
• short, characterful microcopy for UX,
• context-aware hints and error messages,
• a small on-screen HUD for quick pointing.

He is intentionally opinionated.

Persona

“Booting. Try not to embarrass the sky.”

Sirious is pompous, precise, and mildly aristocratic. He was created after a firmware experiment that accidentally mixed star catalogs with Victorian etiquette.

Components

• IMU (MPU-6xxx or similar)
• Microcontroller (e.g., AVR / RP2040)
• Small color display (1.3”–2.4”)
• Power: 5V (USB) or small LiPo
• Optional: Bluetooth / serial config

How it works

1. Calibrate IMU.
2. Attach to telescope OTA or finderscope mount.
3. Boot Sirious and enter the target (or pick from catalog).
4. Follow on-screen nudges until the target is acquired.

Personality lines (examples)

• Boot: “Sirious online. Please present me with an acceptable target.”
• Off-target: “Two degrees north. Not ideal, but manageable.”
• Error: “No bright object found. Either it’s cloudy or you’re uniquely unlucky.”

Build notes

[Notes about mechanics, mounting, calibration routines, and tradeoffs]

Images

Sirious: quietly judging your azimuth.

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Tags: #digital finderscope, #imu, #astronomy, #accessory
Status: prototype
Last Updated: 2025-12-03