News
The occultation of a star by asteroid Adria - 19 July 2025
Asteroid Adria was discovered in 1875 by the Czech-Austrian astronomer Johann Palisa. Until now, the diameter had been estimated at about 93 km. This occultation showed that the true diameter must be about 110 km.
Stellar Duplicity Discovery - 18 July 2025
The light curve from the observation of the occultation of the star UCAC4 334-078310 by the asteroid Yamashitaharuo revealed that there is more than one star. The drop was stepped. This led to a small scientific paper...
The occultation of a star by asteroid Yamashitaharuo - 19 February 2025
Asteroid Yamashitaharuo is named after the writer Haruo Yamashita. He wrote over 500 novels and stories for children. The asteroid was discovered in 1993 by discoverers K. Endate and K. Watanabe at the observatory in Kitami. The estimated diameter is about 19 km.
The occultation of a star by asteroid 2003 HE13 - 02 April 2025
Today I managed to record an asteroidal occultation by asteroid 2003 HE13. Estimated diameter of the asteroid is a little over 6km.
The occultation of a star by asteroid 1999 CH8 - 21 March 2025
Today I managed to record an asteroidal occultation by asteroid 1999 CH8. Estimated diameter of the asteroid is a little over 12km. The shape of the lightcurve shows a clear occultation with a good signal-to-noise ratio. It's a joy to do occultations like this.
The occultation of a star by asteroid Barker - 19 March 2025
Asteroid 7868 Barker was named after a researcher and scientist at the McDonald Observatory at the University of Texas at Austin. It is currently estimated to be 16 km in diameter.
The occultation of a star by asteroid Nestor - 03 February 2025
This occultation is by asteroid Nestor (659). It is a Jupiter trojan with a diameter of approximately 110 kilometers. It was discovered on March 23, 1908 by German astronomer Max Wolf at the Heidelberg Observatory in southern Germany and named after King Nestor of Greek mythology.