I think discernment is needed when working out what's literal or symbolic. I guess, in this particular instance, I believe this event to be literal, but as you stated, there are many symbolic references so I certainly understand where you're coming from.
I genuinely believe that this event is real and not symbolic. There isn't a time span associated to this event, but what we do know is that it happens just before Jesus returns, and immediately after the tribulation. So, it could be an event that lasts a short time (just a thought) before Jesus appears in the clouds, so any questioning of the "physics" as to why this can't be literal may be null and void as by the time the stars start falling, the Angels are gathering the elect. The earth, I believe, will be devastated at this point from what is happening in the heavens.
Here are some parallel scriptures:
Matthew 24:29: “But immediately after the tribulation of those days the sun will be darkened, and the moon will not give its light, and the stars will fall from the sky.”
Revelation 6:12-13: “when He broke the sixth seal, and there was a great earthquake; and the sun became black as sackcloth made of hair, and the whole moon became like blood; and the stars of the sky fell to the earth.”
Joel 2:31
The sun will be turned to darkness and the moon to blood before the coming of the great and dreadful day of the LORD.
Amos 5:20
Will not the day of the LORD be darkness, not light-- pitch-dark, without a ray of brightness?
Zephaniah 1:15
That day will be a day of wrath-- a day of distress and anguish, a day of trouble and ruin, a day of darkness and gloom, a day of clouds and blackness--
Revelation 6:13
and the stars in the sky fell to earth, as figs drop from a fig tree when shaken by a strong wind.
Isaiah 34:4
All the stars in the sky will be dissolved and the heavens rolled up like a scroll; all the starry host will fall like withered leaves from the vine, like shriveled figs from the fig tree.
2 Peter 3:10
But the day of the Lord will come like a thief. The heavens will disappear with a roar; the elements will be destroyed by fire, and the earth and everything done in it will be laid bare.
Isaiah 13:13
Therefore I will make the heavens tremble; and the earth will shake from its place at the wrath of the LORD Almighty, in the day of his burning anger.
Joel 2:10
Before them the earth shakes, the heavens tremble, the sun and moon are darkened, and the stars no longer shine.
The stars to me, IMHO, refer to stars (heavenly, not Israel) during the Day of the Lord. If you replace stars with Israel in the above passages, IMHO, I don't think it works. The passages above, again IMHO, refer to a literal event, not a symbolic one.
By the way, I am not saying you are wrong. My original post was to highlight that although events seem impossible to us, they are indeed not impossible to God.
I want to add this to your position that must be also literal on:
1) all of matthew 24 isn't fulfilled therefore those that jesus said some will not taste death till all these things must be 2000 plus years old
2 edom, edom's destruction has literal rendering of the sky burning and mountains rolling up. what nation is edom?
3) here isn't here? if so where is here?
4) all the tribes of the earth shall mourn yet in heaven it says men of every tribe, tounge , kindred and nation. so if its all the tribes, I guess im not seeing the connection every person since In heaven its everyone that comes from any group.
5) EGYPT must have a temple as God on a cloud hasn't ascended to that country per Isiah 19.
6) Egypt nor Syria are gods people
therefore given that if taken literally:
1) we aren't close to his return
2) or that position is off.
on edom.
http://bibleatlas.org/edom.htm