The calculated distance (air line) between Osiedle Kosmonautów and Kielce is approximately 160 miles respectively 258 kilometers.
By car or train, the actual journey to Kielce is certainly longer, as only the direct route (as the crow flies) between Osiedle Kosmonautów and Kielce has been calculated here.
Air line (approximately)
258 kilometers
139 nautical miles