What do American astronomers use to name the crater?

Walter Sydney Adams (1876 65438+February 20th-1956 May 1 1) is an American astronomer.

Adams is mainly engaged in the study of stellar spectra. Together with the German astronomer arnoldkohlschutter, he studied the spectra of the sun and other stars, and found the relationship between the relative intensity of spectral lines and the absolute magnitude, which can be used to determine whether a star is a superstar or a dwarf. 19 15 years, he began to study Sirius b, the companion of Sirius, and found that although it was only slightly larger than the earth, its mass was equivalent to that of the sun, and it was the first recognized white dwarf. He also found a strong carbon dioxide line in the infrared spectrum of Venus.

Adams won the Gold Award of the Royal Astronomical Society in 19 17, the Henry Draper Award in 19 18 and the Bruce Award in 1928.

In memory of him, asteroid 3 145 was named Walter ADAMS, and a crater on Mars was also named after him.

Edwin Harper

Edwin Powell Hubble (Edward? Powell Hubble,1889165438+1October 20th ~1September 28th, 953), a famous American astronomer. He is famous for discovering the redshift and proving that the universe is expanding. He is also the founder of galactic astronomy and the pioneer of observational cosmology.

Hubble once found the relationship between redshift and the distance of galaxies outside the river, that is, Hubble's law, which provided strong support for the big bang theory. In addition, he once discovered the asteroid 1373. ?

? To commemorate Hubble's contribution, the asteroid 2069, Hubble Crater on the Moon and Hubble Space Telescope were all named after him.

Henry draper

Henry draper (1837 March 7th-1882165438+1October 20th) is an American doctor, astronomer and pioneer of astrophotography. Henry de Lei Bai's father is a doctor, chemist, botanist and a professor at new york University. At the same time, he was the first person to photograph the moon with a telescope in the winter from 1839 to 1940.

Henry draper is one of the pioneers of astrophotography. He had been to Europe when he was young. After returning to China, he established the first astronomical observatory in the United States, and made his own reflective telescope.

1857, 20-year-old Henry draper graduated from new york University Medical College and became a doctor. 1859 became the Dean of the Medical College of new york University. Draper got married in 1867, and his wife is a wealthy social butterfly.

1863, he took many high-quality photos of the moon.

1872 In August, he took the spectrum of Vega, which was the first star spectrum photo taken by human beings.

When he was in transit of venus 1874, he organized an expedition to shoot and won the medal awarded by the US Congress.

1On September 30th, 880, draper used Clark Brothers' 1 1 inch refracting telescope for 50 minutes, and took the first photo of Orion Nebula.

1882, draper died of pneumonia at the age of 45. After his death, his widow, anna marie Palmer, established the Henry Draper Award to reward those who made outstanding contributions to astronomy.

He also funded Pickering and Cannon of the Observatory of Harvard University to compile Henry draper's catalog containing star spectra. Draper crater on the moon is also named after his surname.

Annie jumps off the gun

Annie Jump Cannon (186311-1941April13), an American female astronomer, has done pioneering work in the classification of stellar spectra.

/kloc-in the 1990s, based on the color of stars, Cannon transformed the spectral classification established by Edward Pickering into O, B, A, F, G, K, M, R, N and S according to the order of star surface temperature from high to low, and it was widely used in astronomy. After Pickering's death, Cannon presided over the classification of stars at the Observatory of Harvard University, classified the spectra of more than 200,000 stars, and compiled and published the Henry draper Catalogue. From 1925 to 1936, she and her colleagues continued to classify more than100000 stars and compiled Henry draper's extended catalog.

1925, Cannon received an honorary doctorate from Oxford University, England, and was the first woman to receive this honor. 193 1 year, Cannon was awarded the Henry Draper Award by the American Academy of Sciences for his work on the spectral splitting of stars. In memory of her, a crater on the moon was named "Kanon" after her.