div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader040vdocumentssitereader040viewer2022020523575068771a28ab0f07b04a0ehtml5page1jpg target=_blank img data-url=rejection-of-a-proposed-74-day-rotation-period-of-the-comet-halley-nucleushtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Rejection of a proposed 74-day rotation period of the comet Halley nucleus loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader040vdocumentssitereader040viewer2022020523575068771a28ab0f07b04a0ehtml5thumbnails1jpg width=140 height=200 adivp© 1987 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader040vdocumentssitereader040viewer2022020523575068771a28ab0f07b04a0ehtml5page2jpg target=_blank img data-url=rejection-of-a-proposed-74-day-rotation-period-of-the-comet-halley-nucleushtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Rejection of a proposed 74-day rotation period of the comet Halley nucleus loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader040vdocumentssitereader040viewer2022020523575068771a28ab0f07b04a0ehtml5thumbnails2jpg width=140 height=200 adivp© 1987 Nature Publishing Grouppdiv