File:CHEOPS first light.png

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Summary

Description
English: Image of HD 70843, the star chosen as the first target for CHEOPS, ESA's Characterising ExOPlanet Satellite. The star, located around 150 light years away in the constellation of Cancer, is visible at the centre of the image, surrounded by fainter stars in the background.

The peculiar shape of the stars in the image is a result of the deliberate defocusing of the CHEOPS optics, which spreads the light from each star over many pixels. This makes the measurements of the starlight more precise, as they are much less sensitive to small differences in the response of individual pixels in the CCD and to variations in the telescope pointing. The triangular appearance of the stars is a known effect of the three struts that support the telescope's primary mirror.

The image covers about 1000 × 1000 pixels, with each pixel edge representing a tiny angle of about 0.0003 degrees on the sky, equivalent to less than one thousandth of the full Moon's diameter. The inset in the lower right corner shows a region covering about 100 × 100 pixels, centred on the target star.

Launched on 18 December 2019, CHEOPS is ESA's first mission dedicated to the study of exoplanets.
Date
Source https://sci.esa.int/web/cheops/-/cheops-image-of-its-first-target-star
Author ESA/Airbus/Mission Consortium

Licensing
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  • the source of the image or video is duly credited (Examples: "Credit: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0", "ESA/DLR/FU Berlin, CC BY-SA IGO 3.0", "ESA/Photographer’s name, CC BY-SA IGO 3.0"), and
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attribution share alike
This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license.
Attribution: ESA/Airbus/Mission Consortium, CC BY-SA IGO 3.0
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Captions

CHEOPS image of its first target star

Items portrayed in this file

depicts

HD 70843

star

inception

7 February 2020

File history

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current13:25, 31 May 2024Thumbnail for version as of 13:25, 31 May 20241,024 × 768 (557 KB)commons>Trasheater MidirUploaded a work by ESA/Airbus/Mission Consortium from https://sci.esa.int/web/cheops/-/cheops-image-of-its-first-target-star with UploadWizard

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