Soyuz 13

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Soyuz 13
Mission statistics
Mission name Soyuz 13
Crew size 2
Call sign Кавказ (Kavkaz - "Caucasus")
Launch date December 18, 1973
11:55:00 UTC
Gagarin's Start
Landing December 26, 1973
08:50:35 UTC
200 km SW of Karaganda
Mission duration 7d/20:55:35
Number of orbits 127
Related missions
Previous mission Next mission
Soyuz 12 Soyuz 14

Soyuz 13 was a second test flight of the redesigned Soyuz capsule that first flew as Soyuz 12. This particular spacecraft was further specially modified to carry a Orion 2 Space Observatory (see Orion 1 and Orion 2 Space Observatories); Orion 1 Space Observatory was installed onboard space station Salyut 1.

Contents

[edit] Crew

Number in parentheses indicates number of spaceflights by each individual prior to and including this mission.

[edit] Backup crew

  • Lev Vorobiyov - Commander
  • Valeri Yazdovsky - Flight Engineer

[edit] Reserve crew

[edit] Mission parameters

  • Mass: 6560 kg
  • Perigee: 188 km
  • Apogee: 247 km
  • Inclination: 51.6°
  • Period: 88.8 min

[edit] Orion 2 Space Observatory

The Orion 2 Space Observatory also designed by Grigor Gurzadyan was operated by crew member Valentin Lebedev. Ultraviolet spectrograms of thousands of stars to as faint as 13th magnitude were obtained by a wide-angle meniscus telescope of the Cassegrain system, with an aperture diameter of 240 mm, an equivalent focal length of 1,000 mm, and a 4-grade quartz prism objective. The dispersion of the spectrograph was 17, 28 and 55 nm/mm, at wavelengths of 200, 250 and 300 nm respectively. The first satellite UV spectrogram of a planetary nebula (IC 2149 in Auriga) was obtained, revealing lines of aluminium and titanium - elements not previously observed in objects of that type. Two-photon emission in that planetary nebula and a remarkable star cluster in Auriga were also discovered.

Once again, the new Soyuz variant performed extremely well when on-board systems were tested.

The landing was in a snow storm.

[edit] References

  • G.A.Gurzadyan, Ultraviolet spectra of Capella, Nature, vol. 250, p.204, 1974 [1]
  • G.A.Gurzadyan, S.S.Rustambekova, Silicon-rich stellar envelope? Nature, vol. 254, p.311, 1975 [2]
  • G.A.Gurzadyan, A.L.Jarakyan, M.N.Krmoyan, A.L.Kashin, G.M.Loretsyan, J.B.Ohanesyan, Space astrophysical observatory Orion-2, Astrophysics and Space Science, vol.40, p.393, 1976 [3]
  • G.A.Gurzadyan, Two-photon emission in planetary nebula IC 2149, Astronomical Society of the Pacific Publications, vol.88, p.891, 1976[4]
  • H.A.Abt, Spectral types in Gurzadyan's clustering in Auriga, Astronomical Society of the Pacific Publications, vol.90, p.555, 1978 [5]
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