U‑Net and LSD Deliver High Accuracy for Satellite Trail Detection

A U‑Net model combined with the Line Segment Detector flags satellite streaks with >99% detection for SNR > 3, achieving 79.6% recall and 74.6% precision on real observations. getnews.me/u-net-and-lsd-deliver-hi... #satellitetrails #unet #lsd

A stunning long-exposure astrophotograph of the Orion constellation, showcasing the Orion belt stars and nebulae. Multiple long trails of geostationary satellites are visible, tracing their paths across the celestial landscape as they orbit Earth synchronously with its rotation. The image is a composite of multiple frames, taken over a 10 minute period.

Astronomy Picture from 20/02/2010

Geostationary Highway

Source: https://apod.nasa.gov/apod/ap100220.html


#GeostationaryOrbit #SatelliteTrails #Astrophotography #OrionNebula #NightSky #DeepSky #SpacePhotography #Geosynchronous #ArthurClarke #Space

A stunning grayscale astrophotograph of the Andromeda Galaxy (M31), showcasing its spiral structure and the surrounding star field. The image intentionally retains visible artifacts like airplane and satellite trails, cosmic rays, and bad pixels to authentically represent the challenges of capturing deep-space objects from Earth's atmosphere. The image is a composite of 223 x 300-second exposures taken from a garden observatory in Portugal, minimally processed to reduce terrestrial interference rather than digitally enhancing the image.

Astronomy Picture from 14/10/2019

Andromeda before Photoshop

Source: https://apod.nasa.gov/apod/ap191014.html


#AndromedaGalaxy #Astrophotography #DeepSky #M31 #Space #Galaxy #Cosmology #Astronomy #NightSky #RealAndromeda #LongExposure #SatelliteTrails #EarthArtifacts