Havelland

Päwesin is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.

Roskow is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.

The Nauen Plateau (German: Nauener Platte) is a low plateau in the German states of Brandenburg and Berlin. It rises above the surrounding countryside by an average of 15 metres (49 ft) and is a largely contiguous upland area that was formed during the Saale and Weichselian glaciations. It consists predominantly of ground moraine deposits, partly overlain by gently rolling end moraine formations. Whilst the neighbouring regions of Zauche to the south, the Teltow to the southeast and the Barnim to the northeast have the same name as their geological formation, the cultural landscape on the Nauen Plateau bears the historical and regional name of Havelland. That said, the river country of the Havelland extends beyond the plateau to include the Havel valley and other lowland areas.

Tremmen is a village in Brandenburg, Germany, situated in the district of Havelland. It is one of the civil parishes (Ortsteile) of the town of Ketzin.

Götz station is a railway station in the village of Götz, in the municipality of Groß Kreutz, located in the Potsdam-Mittelmark district in Brandenburg, Germany.

Groß Kreutz station is a railway station in the municipality of Groß Kreutz, located in the Potsdam-Mittelmark district in Brandenburg, Germany.

Ketzin (German: [kɛˈt͡siːn] (listen), official name: Ketzin/Havel) is a town in the Havelland district, in Brandenburg, Germany. It is situated on the river Havel, 17 km northwest of Potsdam, and 40 km west of Berlin.

Groß Kreutz is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.

The Ketzin Cable Ferry is a vehicular cable ferry that crosses the River Havel between Ketzin and Schmergow, both located in Brandenburg, Germany.

Beetzseeheide is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.

2024 BX1, previously known under its temporary designation Sar2736, was a 44 centimetre-sized (17 inches) asteroid or meteoroid that entered Earth's atmosphere on 21 January 2024 00:33 UTC and disintegrated as a meteor over Berlin. It was discovered less than three hours before impact by Hungarian astronomer Krisztián Sárneczky at Konkoly Observatory's Piszkéstető Station in the Mátra Mountains, Hungary. It was observed with the 60 cm Schmidt Telescope. Sárneczky first thought it was a known asteroid because it had a brightness of 18th magnitude, but he could not find it in any catalog, so he reported it to the Minor Planet Center. The fireball was observed by the cameras of the AllSky7 and Fripon networks. 2024 BX1 is the eighth asteroid discovered before impacting Earth, and is Sárneczky's third discovery of an impacting asteroid. Before it impacted, 2024 BX1 was a near-Earth asteroid on an Earth-crossing Apollo-type orbit. The bolide was studied in June 2024. It had a steep entry of 75.6° and an entry speed of 15.20 km/s. The bolide was observed with the SDAFO at Tautenburg, which took a spectrum of the bolide. The spectrum was low in iron, consistent with an enstatite-rich body (E-type asteroid). At a hight of 55 km the meteoroid fragmented into smaller pieces. These primary pieces then broke up again at a height of 39-29 km. The size and mass were first estimated at 1 meter and 1700 kg based on albedos of S-type asteroids. The radiometric measurements from the European Fireball Network did however suggest a mass of about 100 kg. Considering it was an E-type asteroid, which have higher albedos, the new estimates are 0.44 meters and 140 kg.

Paretz is a village in the German state of Brandenburg in the district of Havelland, west of Berlin. Recently, a district reform made Paretz into a borough of the city of Ketzin. It has a population of approximately 400. In the late 18th and early 19th centuries the village was the summer residence King Frederick William III of Prussia and of his wife Queen Louise.