1 Dollar 2019 Star Classification

1 American Innovation Dollar, Annie Jump Cannon, Star Classification (Delaware). 2019 year. The second coin in the series.
Annie Jump Cannon (Eng. Annie Jump Cannon; 1863-1941) - American astronomer.

Born in Dover, Delaware, graduated from Wellesley College in 1884. Since 1896 she worked at the Harvard Observatory.

Major works in the field of spectral classification of stars and the study of variable stars. She continued the work on the spectral classification of stars begun by V. Fleming and A.K. Mori under the direction of E. C. Pickering at the Harvard Observatory. She classified all the stars contained in the Henry Draper Catalog (vols. 91-99 of the Harvard Annals), the Continuation of the Henry Draper Catalog, as well as the stars in the Yale catalog and the catalog compiled in the observatory on Cape of Good Hope. In total, Cannon classified the spectra of about 350,000 stars. Based on the "Henry Draper's Catalog", she carried out, together with X. Shapley, statistical studies of the distribution of stars by magnitudes and spectral classes. In 1903 and 1907 compiled catalogs of variable stars. She discovered about 300 variables and 5 new stars, most of them according to their spectral characteristics.

Obverse: In the center is a profile of the Statue of Liberty, to the left of which is the official US motto "We Believe in God" ("IN GOD WE TRUST"), to the right is the face value of the coin is "1 dollar" ("$ 1"). At the bottom of the obverse are the initials of the designers "JK" and "PH".

Reverse: To the right is the silhouette of the astronomer scientist Annie Jump Cannon against a night sky with many visible stars. In the center in four lines are inscribed the inscriptions: "CLASSIFYING / THE / STARS / DELAWARE" (CLASSIFICATION OF STARS DELAWER). The name of the astronomer is located in the upper right three lines: "ANNIE / JUMP / CANNON". The name of the issuing country is engraved in a semicircle around the edge of the coin: "UNATED STATES OF AMERICA". The initials of the designer and sculptor-engraver are located at the bottom right and left near the edge of the coin.

Edge: Smooth with the inscription (* In God We Trust * E Pluribus Unum * year of minting and the mint stamp).

Release Date: 09/19/2019

A new series of coins of 57 pieces.

The United States Mint launches a $ 1 (one dollar) coin program. New multi-year series in honor of American innovations and innovators. A $ 1 coin will be issued for each of the 50 states, the District of Columbia, and the five U.S. territories of Puerto Rico, Guam, American Samoa, the US Virgin Islands, and the Northern Mariana Islands, as well as the 2018 opening coin - the first patent.

Four new one-dollar coins with distinctive reversible designs will be issued in 4 pieces each year between 2019 and 2032 in the manner in which the States ratified the United States Constitution or were admitted to the Union. After issuing coins for each state, coins will be issued for the District of Columbia and territories.