NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

UV Interstellar Extinction Excess Data


Availability: At NSSDC, Ready for Offline Distribution (or Staging if Digital)


This data set is a Catalog of Ultraviolet Interstellar Extinction Excesses for 1415 Stars containing interstellar extinction excesses in the ultraviolet region derived from five-channel UV photometry carried out with the ANS spacecraft. Filters centered at approximately 1550, 1800, 2200, 2500, and 3300 A were used for the observations, and excesses were derived for each UV wavelength with reference to the V magnitude of the UBV system. The photometric data used to derive the UV excesses are taken from the ANS Ultraviolet Photometry Catalogue of Point Sources (P. Wesselius, R. van Duinen, A. de Jonge, J. Aalders, W. Luinge, and K. Wildeman, Astron. Astrophys. Suppl., v. 49, p. 427, 1982). For additional information concerning the source data, object selection, extinction parameters, and relations among the color excesses themselves and with the excess extinction in the 2200 A bump, see B. Savage, D. Massa, M. Meade, and P. Wesselius, Astrophys. J. Suppl., v. 59, p. 397, 1985.

Alternate Names

  • UV Interstellar Extinction Excess


  • Astronomy: Ultraviolet


  • 74-070A-01B

Additional Information



Questions and comments about this data collection can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Prof. Blair D. SavageGeneral ContactUniversity of
[] NASA Logo -