Top Results for Photometry

The XMM-Newton observatory, operated by ESA, observes the universe primarily in X-rays. Its large telescope allows for detailed studies of extremely hot and energetic astronomical objects like black holes and supernova remnants. Scientists use XMM-Newton to investigate these phenomena and gain insig...

Bengt Strömgren was a prominent Danish astronomer known for his pioneering work in stellar astrophysics during the 20th century. He developed the Strömgren photometry, a four-color system that revolutionized the study of stellar atmospheres. This technique provided crucial data for determining stell...

Edward Charles Pickering was a prominent 19th and early 20th-century astronomer instrumental in developing modern astrophysics. He led the Harvard College Observatory, significantly expanding its photographic survey of the sky through meticulous photometry. His work established crucial catalogs of v...

Bengt Stromgren was a twentieth-century Danish astronomer renowned for his pioneering work in stellar astrophysics. He created Stromgren photometry, a technique employing precisely measured light from stars to determine their temperature and density. This method is particularly valuable for astronom...

Tabetha S. Boyajian is an American astronomer whose research focuses on stellar astrophysics, particularly measurements of stellar brightness, size, and variability. She led the 2015 study that documented the unusual and irregular dimming of KIC 8462852 using observations from NASA's Kepler space te...

Albert Edward Whitford was an American astronomer known for applying photoelectric measurement techniques to stellar and galactic astronomy. He developed and used sensitive photoelectric photometers that improved the precision of astronomical brightness and color measurements compared with earlier p...

Margaret Harwood was an American astronomer of the twentieth century who directed the Maria Mitchell Observatory. Her research included asteroids and variable stars, and she used small telescopes for astronomical observation and photometric work. She is associated with the history of women in Americ...

Antoinette de Vaucouleurs was a French astronomer who helped compile the Reference Catalogue of Bright Galaxies, from the 1964 first edition to 1991 RC3.

Henrietta Hill Swope was an American astronomer associated with the Carnegie Institution whose work helped establish distances beyond the Milky Way. She made photometric measurements of Cepheid variable stars in nearby galaxies, using the relationship between a Cepheid's pulsation period and intrins...

Norman Pogson was a British astronomer whose work helped establish the modern system for comparing the apparent brightness of stars. In 1856 he formalized the logarithmic stellar magnitude scale by defining a difference of five magnitudes as a brightness ratio of exactly 100, so one magnitude repres...

Sonneberg Observatory is an astronomical observatory in Thuringia, Germany, founded in 1925 through the initiative of astronomer Cuno Hoffmeister. It became known for long-term photographic surveys of the sky and for research on variable stars. Its historical archive contains about 300,000 astronomi...