Ostjor
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Ostjor Остёр, Асцёр, Асьцёр (Aszjor) |
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 The Ostjor (Остёр) in the northeast of the catchment area of the Dnieper (Днепр) |
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| Data | ||
| location |
Smolensk Oblast ( Russia ), Mahiljouskaja Woblasz ( Belarus ) |
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| River system | Dnepr | |
| Drain over | Sosh → Dnepr → Black Sea | |
| source | around 30 km northwest of Desnogorsk on the Smolensk Heights 54 ° 18 ′ 50 ″ N , 32 ° 56 ′ 3 ″ E |
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| muzzle | about 10 km north-northeast of Krytschau in the Sosch coordinates: 53 ° 47 '49 " N , 31 ° 45' 42" E 53 ° 47 '49 " N , 31 ° 45' 42" E
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| length | 274 km | |
| Catchment area | 3490 km² | |
| Outflow location: 36 km above the mouth |
MQ |
20.8 m³ / s |
| Left tributaries | Bolshaya Navlja , Shumyachka | |
| Right tributaries | Ostrik , Stomet , Nemka | |
| Medium-sized cities | Roslavl | |
 Nikolai A. Atryganjew : View of the Ostjor River in Mogilev Governorate (1885) |
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The 274 km long Ostjor ( Russian Остёр ) or Aszjor ( Belarusian Асцёр or Асьцёр ) is a left-hand tributary of the Sosch in the catchment area of the Dnepr in the Smolensk Oblast in Russia and the Mahiljouskaja Woblasz in Belarus .
description
The Ostjor rises on the Smolensk Heights in the southern Smolensk Oblast. From there it first flows in a southerly direction through the intensely agricultural landscape. Shortly after the confluence of the Ostrik, it describes a wide right-hand bend into which the Bolshaya Nawlja joins from the left , and flows further to the west and finally to the northwest. He reached the city of Roslavl , which he passed on its eastern edge. After the confluence of the right tributary Stomet , the Ostjor turns again in a southerly direction. After the confluence of the left tributary Schumjatschka and the Nemka from the right, the river crosses the Russian-Belarusian border between Schumjatschi and Klimawitschy . For a few kilometers it now flows through Belarusian territory initially in a south-westerly direction, later turning to the west and north-west. It reaches the border again, which now follows the course of the river for the few remaining kilometers to its confluence with the Sosch.
The Ostjor, which is mainly fed by meltwater , freezes over on average between late November and early January and remains under ice until late March / early April.
