# Observatory Logbook

Astronomical observation data. Maintained for archival purposes.

## 2026-09-05

Night sky observations commenced at 19:32 UTC. Cloud cover minimal, seeing conditions good at 2.1 arcseconds.

## Spectroscopic Notes

Examined several nearby stellar objects. Alpha Centauri spectral class G2V confirmed. Proxima Centauri flare activity observed at 19:45 UTC — minor event, magnitude 4.2.

## Data Log

| Time (UTC) | Object         | Magnitude | Notes |
|------------|----------------|-----------|-------|
| 19:32      | Alpha Cen A    | -0.01     | Stable |
| 19:40      | Proxima Cen    | 11.13     | Flare detected |
| 19:55      | Alpha Cen B    | 1.33      | Orbital motion noted |
| 20:10      | LHS 2090       | 14.8      | Red dwarf, quiet |
| 20:25      | Teegarden's Star | 15.4    | Nearby M-dwarf |
| 20:40      | WISE 0855     | ?         | Brown dwarf candidate |

## Atmospheric Data

- Temperature: 12°C
- Humidity: 67%
- Wind: 5 km/h NW
- Pressure: 1013 hPa

## Status

Telescope tracking nominal. Data acquisition proceeding as scheduled. No issues detected.

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*Observatory log maintained by the night shift observer. All data archived.*