Sky at Night Magazine - - DECEMBER -


31 De­cem­ber, 07:00 UT AL­TI­TUDE: 18º LO­CA­TION: Li­bra DI­REC­TION: South-south­east

Jupiter is a morn­ing ob­ject that gets bet­ter through the month. On 1 De­cem­ber it shines at mag. –1.7 and ap­pears 31 arc­sec­onds across through the eyepiece. By the 31st it will have bright­ened frac­tion­ally to mag. –1.8 and ap­pear 34 arc­sec­onds across. It never quite man­ages to make it to its high­est point in dark­ness dur­ing the month. The 31st also sees Jupiter 3º east of Mars, and they form a tri­an­gle with mag. +2.8 Zubenel­genubi (Al­pha (_) Li­brae). Jupiter makes a close 43-ar­cminute pass of this star on the morn­ing of the 22nd. A thin wan­ing cres­cent Moon is close to Jupiter on the morn­ings of the 14th and 15th.

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