Jindrichuv Hradec & 21873 Jindrichuvhradec asteroid - Czech republic - Extraterrestrial Locations on Waymarking.com

"21873 Jindrichuvhradec, provisional designation 1999 UU3, is a dark asteroid and relatively slow rotator from the outer region of the asteroid belt, approximately 8 kilometers in diameter. It was discovered by Czech astronomers Jana Tichá and Miloš Tichý at the South Bohemian Klet Observatory on 29 October 1999.

The asteroid orbits the Sun at a distance of 2.5–3.8 AU once every 5 years and 7 months (2,045 days). Its orbit has an eccentricity of 0.21 and an inclination of 4° with respect to the ecliptic.[1] The first precovery was obtained at Crimea–Nauchnij in 1982, extending the asteroid's observation arc by 17 years prior to its discovery.

According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 7.2 kilometers in diameter and its surface has an albedo of 0.23. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous C-type asteroids of 0.057, and calculates a diameter of 10.4 kilometers, as the lower the albedo, the larger a body's diameter, at a constant absolute magnitude. A large-scale survey by Pan-STARRS, however, classifies the body as a X-type asteroid, which metallic core group has an intermediate albedo between stony and carbonaceous bodies. In September 2010, a photometric light-curve analysis at the U.S. Palomar Transient Factory, California, gave a long rotation period of 50.5874±0.0664 hours with a brightness variation of 0.61 in magnitude (U=2). This makes it a relatively slow rotator for an asteroid of its size, which normally have periods of just a few hours rather than several days.

The minor planet is named for Jindrichuv Hradec, a south Bohemian town in the Czech Republic. Founded in the 13th century, it is known for its Renaissance château and Gothic church, which is exactly built on the 15th meridian east of Greenwich. A line marks the course of the meridian in its paving stones. Naming citation was published on 28 January 2002 (M.P.C. 44595)."

source: (visit link)

Website of the Extraterrestrial Location: [Web Link] Website of location on Earth: [Web Link] Celestial Body: Asteroid

Visit Instructions:
Post a different picture and tell us about your experience at the location.

Recent Visits/Logs:

Date Logged Log   12/28/2023 Kurupira visited it 08/08/2019 Zajacovi visited it 08/08/2019 JeanPierre12 visited it 05/05/2018 Blogi visited it 09/24/2017 jezevcik visited it 08/16/2017 alreadyhere visited it

View all visits/logs