* Ãâó : star walk app
19ÀÏ Ãµ¹® Çö»ó - Å伺°ú ¾Ë¹ß´Ù (Pi Sagittarii, ±Ã¼öÀÚ¸® ÆÄÀÌ)ÀÇ ÇÕ
* Ãâó : star walk app
ÀÌ ¾Ë¹ß´ÙÀÇ Æ¯Â¡Àº ½Ö¼º°èµµ ¾Æ´Ï°í º°ÀÌ ¼¼°èÀÎ Æ®¸®Çà ½ºÅ¸ ½Ã½ºÅÛ , ¸Ç´«À¸·Î °üÃø°¡´É
https://www.universeguide.com/star/albaldah
20ÀÏ - ´ÞÂø·ú 50ÁÖ³â
21ÀÏ
(1) ´ÞÀÇ ¿øÁöÁ¡ - Áö±¸·ÎºÎÅÍ 405, 480km ¶³¾îÁü
ÀÌ ¶§ º¸ÀÌ´Â ´ÞÀ» ¸¶ÀÌÅ©·Î ¹® (¹Ý´ë´Â ½´ÆÛ¹®)À̶ó°í ÇÔ.
** ±ÙÁöÁ¡Àº 36¸¸ km (Æò±Õ °Å¸®´Â 38¸¸ km)
https://www.timeanddate.com/astronomy/moon/lunar-perigee-apogee.html
https://www.timeanddate.com/astronomy/moon/micro-moon.html
2) ¼ö¼º³»ÇÕ
* Ãâó : solar walk app
žç - ¼ö¼º - Áö±¸°¡ ÀÏÁ÷¼±
µ¿¹æÃÖ´ëÀÌ°¢ ´ÙÀ½À¸·Î ¹à°Ô º¸ÀÌ´Â ³¯
ÅÂ¾ç µÚÂÊ¿¡¼ ÀÏÁ÷¼±Àº ¿ÜÇÕÀ̶ó°í ÇÔ.
http://study.zum.com/book/14017