Hannah Steele PettitHannah Steele Pettit (November 6, 1886 – September 10, 1961), also known as Hannah Bard Steele Pettit, was an American astronomer who spent a notable amount of her career working as an assistant at the Yerkes Observatory, where she and her husband Edison Pettit jointly published photographs on the corona of a solar eclipse. Early life and educationHannah Steele Pettit was born in Coatesville, Pennsylvania on November 6, 1886.
Peru State CollegePeru State College (Peru) is a public college in Peru, Nebraska, United States. It was founded by members of the Methodist Episcopal Church in 1865, and opened in 1866 as Mount Vernon Academy. It is the first and oldest institution of higher education in Nebraska. The college is organized into three schools, each supporting a different set of majors, including a graduate program, plus an extensive online education program.
Topeka, KansasTopeka (, ) is the capital city of the U.S. state of Kansas and the county seat of Shawnee County. It is along the Kansas River in the central part of Shawnee County, within northeastern Kansas and the Central United States. The population of the city was 126,587 as of the 2020 census. The five-county Topeka metropolitan area has approximately 233,000 residents.
Peru, NebraskaPeru is a city in Nemaha County, Nebraska, United States. The population was 648 at the 2020 census. Peru State College is located in the city. HistoryThe first attempt to settle the community took place in 1853, by some residents of Peru, Illinois. However, troops from Fort Kearny forced them to leave because Nebraska Territory belonged to the Otoe tribe. The settlers then temporarily settled across the Missouri River at Sonora.
Yerkes ObservatoryRelated media on CommonsThe Yerkes Observatory ( ) is located in Williams Bay, Wisconsin, United States. It was operated by the University of Chicago Department of Astronomy and Astrophysics from its founding in 1897 until 2018. Ownership was transferred to the non-profit Yerkes Future Foundation (YFF) in May 2020, which began millions of dollars of restoration and renovation of the historic building and grounds. Yerkes re-opened for public tours and programming in May 2022.
Mount Wilson ObservatoryRelated media on CommonsThe Mount Wilson Observatory (MWO) is an astronomical observatory in Los Angeles County, California, United States. The MWO is located on Mount Wilson, a 5,710-foot (1,740-meter) peak in the San Gabriel Mountains near Pasadena, northeast of Los Angeles.
Washburn UniversityWashburn University (WU), formally Washburn University of Topeka, is a public university in Topeka, Kansas, United States. It offers undergraduate and graduate programs as well as professional programs in law and business. The university enrolls approximately 5,000 undergraduate students and 700 graduate students as of 2023. As of 2008, Washburn also took over overseeing the nearby Washburn Tech.
AstronomerAn astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers study astronomical objects, such as stars, planets, moons, comets and galaxies, by some combination of observation and the application of astrophysical models. Examples of topics or fields astronomers study include planetary science, solar astronomy, the origin or evolution of stars, or the formation of galaxies.
University of ChicagoPrivate university in Chicago, Illinois, USThe University of Chicago (UChicago, Chicago, UChi, or U of C) is a privateresearch university in the Hyde Park community area of Chicago, Illinois, United States.
ThermocoupleA thermocouple, also known as a thermoelectrical thermometer, is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction. A thermocouple produces a temperature-dependent voltage as a result of the Seebeck effect, and this voltage can be interpreted to measure temperature. Thermocouples are widely used as temperature sensors.
MarsFourth planet from the SunSurface absorbed doserate8.8 μGy/hSurface equivalent doserate27 μSv/hApparent magnitude−2.94 to +1.86Absolute magnitude (H)−1.5Angular diameter3.5–25.1 arcsecondsAtmosphereSurface pressure0.636 (0.4–0.87) kPa0.00628 atmComposition by volume95.97% carbon dioxide1.93% argon1.89% nitrogen0.146% oxygen0.0557% carbon monoxide0.0210% water vaporMars is the fourth planet from the Sun.
SunStar at the centre of the Solar SystemThe Sun is the star located at the centre of the Solar System. It is a massive sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies. It is the main source of energy for life on Earth.*As an Amazon Associate I earn from qualifying purchases.