Abstract
A high-resolution solar spectrum in the range 2000–2200 Å was obtained in a recent flight of a sunpointing Skylark rocket. This was launched at 04.21 hr UT on April 22, 1969 from Woomera and reached an apogee of 178 km. An optical alignment system operating on the main vehicle pointing system gave a net stabilisation of ± 3 arc sec in the position of the solar image relative to the spectrograph slit. The slit, of length 1.0 mm, was set in the north-east quadrant parallel to and 5 arc min from the north/ south axis, its lower edge being 1 arc min from the equator. The roll control of ± 2.5° was provided entirely by the standard Elliott Bros, type of vehicle stabilisation.
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References
Bonnet, R. M., Blamont, J. E., and Gildwarg, P.: 1967, Astrophys. J. 148, L115.
Purcell, J. D., Garrett, D. L., and Tousey, R.: 1963, in Space Research, vol. III, p. 781.
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Jones, B.B., Boland, B.C., Wilson, R., Engstrom, S.T.F. (1970). A High-Resolution Solar Spectrum 2000 Å–2200 Å. In: Houziaux, L., Butler, H.E. (eds) Ultraviolet Stellar Spectra and Related Ground-Based Observations. International Astronomical Union / Union Astronomique Internationale, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-3293-3_43
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DOI: https://doi.org/10.1007/978-94-010-3293-3_43
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