The activity of looking at the stars in the night sky — going somewhere dark, lying back, and watching. It is the noun for what a stargazer does, and it is what you say when you plan an evening: we went stargazing, the weather was good for stargazing.

The activity of looking at the stars in the night skystargazing是指看夜空星星的這個活動 going somewhere dark, lying back, and watching去一個暗處，躺下來看 It is the noun for what a stargazer does它是stargazer（觀星的人）所做的事的名詞形式 and it is what you say when you plan an evening也是你規劃一個晚上時會用的說法 we went stargazing, the weather was good for stargazing像we went stargazing（我們去看星星了）、the weather was good for stargazing（天氣很適合看星星）

Note that the line you were given says 'someone who studies astronomy' — that is the person word (stargazer). Stargazing is the doing, not the person.

Note that the line you were given says 'someone who studies astronomy'留意如果你看到的說明寫著『研究天文學的人』 that is the person word (stargazer)那指的是人的那個詞，也就是stargazer Stargazing is the doing, not the personstargazing指的是這個動作，不是指人

It also carries the second meaning: daydreaming, thinking about big far-off things instead of the practical matter in front of you. Used that way it is mildly critical — 'that's just stargazing' means the plan is lovely and not real.

It also carries the second meaning它還有第二個意思 daydreaming, thinking about big far-off things instead of the practical matter in front of you就是做白日夢，想著遙遠宏大的事，而不是眼前實際的事情 Used that way it is mildly critical這樣用的時候帶點輕微的批評意味 'that's just stargazing' means the plan is lovely and not real『that's just stargazing』（那只是空想）意思是這個計畫很美好但不切實際

It works as a noun and also in front of another noun (a stargazing trip).

It works as a noun它可以當名詞用 and also in front of another noun (a stargazing trip)也可以放在另一個名詞前面（像a stargazing trip，一趟觀星之旅）