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An estimate obtained by interferometry in 1925 by Francis G. Pease at the Mount Wilson Observatory gave Antares a diameter of 400 to 430 million mi (640 to 690 million km), equal to approximately 463-497 R ☉, making it the then largest star known.
Utilizing all four stages during ascent, Antares had the capability to send a payload of 35 kg to an altitude of 280 km. The first stage featured a SEPR 734-1 Vesuve motor with a diameter of 56 cm and a length of 3.5 m, delivering a total impulse of 1025 kNs with less than 5 seconds burn time.
Antares (/ æ n ˈ t ɑː r iː z /), known during early development as Taurus II, is an American expendable medium-lift launch vehicle developed and built by Orbital Sciences Corporation (later Orbital ATK and Northrop Grumman) with financial support from NASA under the Commercial Orbital Transportation Services (COTS) program awarded in February 2008, alongside the company's automated cargo ...
Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi). [ 1 ] The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars.
Able to launch payloads heavier than 8,000 kg (18,000 lb) into low Earth orbit, Antares is the largest rocket operated by Northrop Grumman. Antares launches from the Mid-Atlantic Regional Spaceport and made its inaugural flight on April 21, 2013. [12] Antares 100 was retired in 2014 and series 200 was retired in 2023 due to component ...
First Commercial Resupply Service (CRS) mission for Cygnus, first Antares launch using the Castor 30B upper stage. 3 Orb-2 Janice E. Voss: Orbital Sciences CRS Flight 2 Standard 13 July 2014, 16:52:14 Antares 120: 3,293 lb (1,494 kg) Success [29] [30] 4 Orb-3 Deke Slayton: Orbital Sciences CRS Flight 3 Standard 28 October 2014, 22:22:38 Antares 130
1.4 km – diameter of Dactyl, the first confirmed asteroid moon; 4.8 km – diameter of 5535 Annefrank, an inner belt asteroid; 5 km – diameter of 3753 Cruithne; 5 km – length of PSR B1257+12; 8 km – diameter of Themisto, one of Jupiter's moons; 8 km – diameter of the Vela Pulsar; 8.6 km – diameter of Callirrhoe, also known as ...
A 30-second descent orbit insertion burn was performed to reduce speed and drop the LM's perilune to within about 50,000 feet (15 km) of the surface, [5] about 260 nautical miles (480 km) uprange of the landing site. Lunar Module Eagle, the lunar module ascent stage of Apollo 11, in orbit above the Moon. Earth is visible in the distance.