https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14004271Edit ImageSaveSaveEditCropCustom TextAstronomy: Thomas Phelps (left) and John Bartlett making astronomical observations in the observatory of the Earl of Macclesfield, Oxfordshire. Mezzotint by J. Watson, 1778.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 860 x 1200 px | 300 dpiLarge JPEG 2236 x 3121 px | 300 dpiFree DownloadAstronomy: Thomas Phelps (left) and John Bartlett making astronomical observations in the observatory of the Earl of Macclesfield, Oxfordshire. Mezzotint by J. Watson, 1778.More