您现在的位置是:首页 > 学科知识查询 > 自然天文

astronomy picture of the day

编辑:chaxungu时间:2022-09-28 05:53:50分类:自然天文

discoverthecosmos!eachdayadifferentimageorphotographofourfascinatinguniverseisfeatured,alongwithabriefexplanationwrittenbyaprofessionalastronomer.

explanation:orbitingclosertothesunthanplanetearth,brightvenusalwaysappearstobenearthesun'spositioninourskyandoftenshinesnearthehorizonintwilighthours.infact,afterposingasthebrillianteveningstarforthefirsthalfofthisyear,venushasnowswungarounditsorbitandisemerginginthepredawntwilightasthemorningstar.takenduringitsstintastheeveningstar,thisimaginativelong-exposurephoto,ofvenusanda2-day-oldcrescentmoongivestheillusionofthepair"fallingout"ofthewesternsky.afteraninitialshortexposurecapturedthemoonandvenus,thelenswascoveredforafewminutes,thenleftuncoveredtorecordthetrailsuntilthemoonhadset.

上一篇:昏星

下一篇:恆星