On Dec 21, 2020, Jupiter & Saturn slide within a tenth of a degree of each other. If your vision is no better than 20/100, the two planets will look as one. Close encounters among celestial objects are “conjunctions”
Deborah Byrd & Bruce McClure say more:
@neiltyson How close will they *look* using a telescope? If I get a low enough mm, could I get both in frame?
@neiltyson Are these common? The conjunctions?
@neiltyson Any chance we'll get hit by an asteroid any time soon?
@neiltyson If I’ve learned anything from NDT, it’s that he is smart.