A rare, intense solar storm produced vibrant aurora borealis displays across Europe around January 19, 2026, driven by high solar activity during Solar Cycle 25. The displays featured green, pink, and purple lights, with sightingsContinue reading
Category: Observing report
Sun in h-alpha light, 27 December 2025
Giant sunspot complex 4317 centered. Earth-orbiting satellites recorded a strong M5-class solar flare: image. It came from a developing active region near new sunspot 4323. This region near the sun’s eastern limb seems poised forContinue reading
Sun in Ca II K light, 7 December 2025
Giant sunspot complex 4294 – 4296 has a ‘beta-gamma-delta’ magnetic field that harbors energy for X-class solar flares (Credit: NASA/SDO).
September 2025 lunar eclipse
A total lunar eclipse occurred at the Moon’s ascending node of orbit on Sunday, September 7, 2025, with an umbral magnitude of 1.3638. Viktor and Christian were able to take photos in Wulkaprodersdorf.
Rosette nebula
The Rosette Nebula is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 is closely associated withContinue reading
Comet C/2023 A3 Tsuchinshan-ATLAS
C/2023 A3 Tsuchinshan-ATLAS was discovered in 2023, identified by observers at China’s Tsuchinshan (Purple Mountain) Observatory and an ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in South Africa.
Aurora Borealis, 10 May 2024
A severe geomagnetic storm could be seen in the evening today! The first of six CMEs hurled toward Earth by giant sunspot AR3664 hit our planet’s magnetic field today.
Giant sun spot AR3664, 9 May 2024
Sunspot AR3664 has grown so large, sprawling almost 200,000 km from end to end. It is 15 times wider than Earth and rivals the great Carrington sunspot of 1859.