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Comet C/2020 F3 (Neowise)

Comet C/2020 F3 (Neowise). Crop from an image taken at Postalm (Salzburg, AT) on July 21st, 2020 with a Nikon DF using an AF-S 50mm f/1.8 Nikkor at f/2.2 and ISO 1600. The exposure time was 15 ...

Nikkor Lens Comparison for Astrophotography AF 80-200 f2.8 ED vs. AF-S VR 70-200 f2.8 ED

I bought two used Nikon lenses, both very similar in their specifications, which is not surprising as the Nikkor AF 80-200 f2.8 ED is a precursor of the Nikkor AF-S VR 70-200 f2.8 ED (see Ken Rockwell's history page). With the highest bid, I got the 80-200mm for 280 EUR + ...

Observing Comet C/2013 US10 (Catalina)

Comet C/2013 US10 (Catalina) was first discovered by the Catalina Sky Survey on October 31, 2013. It originates from the Oort cloud, a vast spherical reservoir of comets far beyond Neptun. By chance, gravitational perturbations can push Oort objects into the inner solar ...

Comet C/2014 Q2 (Lovejoy)

Comet C/2014 Q2 (Lovejoy) is bright (around 5mag) enough to be easily seen with binoculars or small telescopes in constellation Eridanus. On really good sites one should be able to spot it even with naked eye. However, currently the observing conditions are hard, because ...

Milkyway and Venus rise (Video)

The following timelapse movie shows the rising Venus and the Milkyway. The individual photographs from which the animated sequence was created, were taken at the Roque de Los Muchachos, La Palma, Canary Islands during an observing run at the Nordic Optical Telescope ...

Endlich gutes Wetter: Supernova SN2014J

Endlich hat das Wetter mitgespielt, um die Supernova SN2014J von Stockholm aus mit dem AlbaNova Teleskop zu beobachten. Selbst knapp einen Monat nach ihrer Entdeckung, liegt die Helligkeit der Supernova im Visuellen (Johnson V) mit 11 mag immer noch bei etwa 75% der ...