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Gaia BH1 (Gaia DR3 4373465352415301632) is a binary system consisting of a G-type main-sequence star and a likely stellar-mass black hole, located about 1,560 light-years (478 pc) away from the Solar System in the constellation of Ophiuchus. [4]
The BH-1 was subsequently rebuilt with a Gnome Omega rotary engine and was finally able to fly with two people aboard. It was known as the BH-1 bis in this configuration, and in 1921 won the Czechoslovak national cross-country rally with an average speed of 125 km/h (78 mph) over the 860 km (536 mi) course. The aircraft was damaged in a crash ...
The Avia BH-3 was a fighter plane built in Czechoslovakia in 1921. Conceptually a descendant of the BH-1 sports plane, it was a braced, low-wing monoplane of conventional configuration and tailskid undercarriage. Following favourable trials in June 1921, ten examples were ordered by the Czechoslovakian Air Force.
The black hole and star orbit the system barycentre every 11.6 years, with an orbital distance ranging from 4.5–29 AU. [3] The black hole's mass is 32.70 M ☉, the heaviest known stellar black hole in the Milky Way. The black hole Gaia BH3 is the second known stellar black hole more massive than about 10 M ☉ (with the first being Cygnus X-1).
The Tà Ôi is an ethnic group of Vietnam (52,356 in 2019) and Laos (45,991 in 2015).. They speak the Ta’Oi language, a Mon–Khmer language. They are concentrated in A Lưới district of Thừa Thiên–Huế Province and Hướng Hóa District of Quảng Trị Province in Vietnam, and in muang Ta Oy of Saravane Province in southern Laos.
Dạ cổ hoài lang (Vietnamese: [zâːˀ ko᷉ hwâːj laːŋ], "Night Drum Beats Cause Longing for Absent Husband") is a Vietnamese song, composed circa 1918 by songwriter Cao Văn Lầu, colloquially known as "Sáu Lầu," from Bạc Liêu.
The Avia BH-23 was a prototype night fighter aircraft built in Czechoslovakia in 1926. The design was derived from the BH-21 day fighter, incorporating structural changes made to the BH-22 trainer, and the type was originally designated BH-22N. Searchlights and other night-flying equipment were added, but the Czechoslovak Air Force were not ...
In 1999, the team at LBNL claimed the discovery of long-lived 267 Bh (5 atoms) and 266 Bh (1 atom). [26] Later, both of these were confirmed. [ 27 ] The team at the Paul Scherrer Institute (PSI) in Bern , Switzerland later synthesized 6 atoms of 267 Bh in the first definitive study of the chemistry of bohrium.