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  2. Atlas-Agena - Wikipedia

    en.wikipedia.org/wiki/Atlas-Agena

    The earliest Agena variant was the Agena A in 1959–60, which did not have restart capability, mostly flown on Thor-Agena boosters for the Discoverer program.. The early Atlas LV3 Agena A variant was flown four times for the Midas and Samos programs (Midas 1, Midas 2, Samos 1, and Samos 2), with two failures.

  3. Beta Centauri - Wikipedia

    en.wikipedia.org/wiki/Beta_Centauri

    Beta Centauri is a triple star system in the southern constellation of Centaurus.It is officially called Hadar (/ ˈ h eɪ d ɑːr /).The Bayer designation of Beta Centauri is Latinised from β Centauri, and abbreviated Beta Cen or β Cen.

  4. Timeline of artificial satellites and space probes - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_artificial...

    Atlas-Agena: Moon Failure: Booster rocket malfunction caused spacecraft to be trapped in low Earth orbit. [5] 1962 January 26 US: Ranger 3: Atlas-Agena: Moon Failure: NASA's first attempt to land a spacecraft on the Moon. A series of malfunctions caused spacecraft to hurtle past the Moon. [6] April 23 US: Ranger 4: Atlas-Agena: Moon Partial failure

  5. List of Atlas launches (1960–1969) - Wikipedia

    en.wikipedia.org/wiki/List_of_Atlas_launches...

    Agena failed to restart due to rate gyro malfunction; spacecraft left in LEO. 1961-11-22 20:45 Atlas-Agena B LV-3 108D VAFB SLC-3W Samos 4: Optical reconnaissance LEO (target) Failure Pitch control failed at T+244 seconds. Agena separated but was left facing in the wrong direction for orbital insertion. 1961-11-22 21:04 Atlas F 4F CCAFS LC-11 ...

  6. Agena target vehicle - Wikipedia

    en.wikipedia.org/wiki/Agena_target_vehicle

    The Agena Target Vehicle (/ ə ˈ dʒ iː n ə /; ATV), also known as Gemini-Agena Target Vehicle (GATV), was an uncrewed spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking techniques, and to perform large orbital changes, in preparation for the Apollo program lunar missions. [1]

  7. RM-81 Agena - Wikipedia

    en.wikipedia.org/wiki/RM-81_Agena

    The first Agena-D launch was of KH-4 #7 on June 28, 1963, and a total of 269 Agena-Ds were launched. The Agena-D was used to launch KH-7 GAMBIT and KH-8 Gambit 3 reconnaissance satellites, three Mariner probes to Venus and the two Mariner space probes to Mars. Thor-Agena flew for the last time in 1972 when it launched a KH-4B satellite.

  8. List of Thor and Delta launches (1970–1979) - Wikipedia

    en.wikipedia.org/wiki/List_of_Thor_and_Delta...

    Thorad SLV-2H Agena-D Thor 555 Agena 1657 VAFB SLC-3W KH-4B (S/N 1110) Reconnaissance LEO Success 1970-07-23 01:25 Thorad SLV-2H Agena-D Thor 556 Agena 1654 VAFB SLC-3W KH-4B (S/N 1111) Reconnaissance LEO Success 1970-07-23 23:23 Delta M: Delta 79 Thor 563 CCAFS SLC-17A Intelsat 3-8: Communication satellite GTO Success 1970-08-19 12:11 Delta M ...

  9. First-magnitude star - Wikipedia

    en.wikipedia.org/wiki/First-magnitude_star

    Agena, Hadar 350 B1 III Hadar (Agena) 12 0.77 α Aql Altair: 17 A7 V Altair: 13 0.77 α Cru Acrux: 320 B1 V Acrux A: 14 0.85 var: α Tau Aldebaran: 65 K5 III Aldebaran: 15 1.04 α Vir Spica: 260 B1 III-IV, B2 V Spica: 16 1.09 var: α Sco Antares: 600 M1.5 Iab-b Antares: 17 1.15 β Gem Pollux: 34 K0 IIIb Pollux: 18 1.16 α PsA Fomalhaut: 25 A3 V ...