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Corona Borealis

Behind the shot

The elegant celestial arc of the Northern Crown, captured in its geometric simplicity under stable spring seeing.

Observation

Date: 08 Apr 2026
Time: 22:20 - 22:50 CEST
Site: Porto San Giorgio, Marche, Italy
Bortle: Class 6

Bortle Class 6

Bright Suburban Sky
Azimuth: +76° 41' 58.5"
Altitude: +25° 35' 37.7"

Atmospherics

Visibility: Average
Weather: Clear sky, high humidity
Moon: 62% Waning Gibbous - Below horizon

Acquisition

Camera: Panasonic Lumix G7
Lens: LUMIX G VARIO 14-42mm f/3.5-5.6
Mount: Static Tripod (Untracked)
Integration: 100 x 13s

Optics

Focal Length: 20mm
Aperture: f/4.2
ISO: ISO 1600

Post-Processing

Software: SiriL + darktable
Pre-Processing: Master-frame subtraction, constellation-aware FWHM star filtering, RBF Background extraction.
Post-Processing: Wavelet-based profiled denoise, Local Laplacian contrast for geometric clarity, star temperature balancing, sky-black level preservation.