photographic photometry वाक्य
"photographic photometry" हिंदी में photographic photometry in a sentenceउदाहरण वाक्य
- His thesis was titled, " On an Apparatus and Method for Thermo-Electric Measurements for Photographic Photometry ".
- The first light curve was already obtained in 1974, by Swedish astronomer Claes-Ingvar Lagerkvist at Uppsala Observatory from photographic photometry, but it was only fragmentary and gave a tentative period of 12 hours ( ).