STRESS STEREO TRansiting Exoplanet and Stellar Survey

Vinothini Sangaralingam, Ian Stevens, S Spreckley, J Debosscher

Research output: Contribution to conference (unpublished)Paperpeer-review

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The Heliospheric Imager (HI) instruments on board the two STEREO (Solar TErrestrial RElations Observatory) spacecraft provides an excellent opportunity for space based stellar photometry. The HI instruments provide a wide area coverage (20° × 20° for the two HI-1 instruments and 70° × 70° for the two HI-2 instruments) and long continuous periods of observations (20 days and 70 days respectively). Using HI-1A which has a pass band of 6500Å to 7500Å and a cadence of 40 minutes, we have gathered photometric information for more than a million stars brighter than 12th magnitude for a period of two years. Here we present some early results from this study on a range of variable stars and the future prospects for the data.
Original languageEnglish
Number of pages6
Publication statusPublished - 1 Jan 2010
EventProceedings of the International Astronomical Union -
Duration: 1 Jan 2010 → …


ConferenceProceedings of the International Astronomical Union
Period1/01/10 → …


  • stars: variables, survey, etc
  • methods: data analysis
  • techniques: image processing


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