The noun ouranos (heaven / sky) in Luke

(Translation from NRSV with a few modifications for a more literal meaning)

Legend:
Blue color: ouranos = God
Red color: ouranos = part of the universe above the firmament
Green color: ouranos = the atmosphere under the firmament

Luke

2: 15When the angels had left them and gone into heaven (ouranos), the shepherds said to one another, "Let us go now to Bethlehem and see this thing that has taken place, which the Lord has made known to us."
3: 21Now when all the people were baptized, and when Jesus also had been baptized and was praying, the heaven (ouranos) was opened,
3: 22and the Holy Spirit descended upon him in bodily form like a dove. And a voice came from heaven (ouranos), "You are my Son, the Beloved; with you I am well pleased."
4: 25But the truth is, there were many widows in Israel in the time of Elijah, when the heaven (ouranos) was shut up three years and six months, and there was a severe famine over all the land;
6: 23Rejoice in that day and leap for joy, for surely your reward is great in heaven (ouranos); for that is what their ancestors did to the prophets.
8: 5"A sower went out to sow his seed; and as he sowed, some fell on the path and was trampled on, and the birds of the sky (ouranos) ate it up.
9: 16And taking the five loaves and the two fish, he looked up to heaven (ouranos), and blessed and broke them, and gave them to the disciples to set before the crowd.
9: 54When his disciples James and John saw it, they said, "Lord, do you want us to command fire to come down from heaven (ouranos) and consume them?"
9: 58And Jesus said to him, "Foxes have holes, and birds of the sky (ouranos) have nests; but the Son of Man has nowhere to lay his head."
10: 15And you, Capernaum, will you be exalted to heaven (ouranos)? No, you will be brought down to Hades.
10: 18He said to them, "I watched Satan fall from heaven (ouranos) like a flash of lightning.
10: 20Nevertheless, do not rejoice at this, that the spirits submit to you, but rejoice that your names are written in heavens (ouranos)."
10: 21At that same hour Jesus rejoiced in the Holy Spirit and said, "I thank you, Father, Lord of heaven (ouranos) and earth, because you have hidden these things from the wise and the intelligent and have revealed them to infants; yes, Father, for such was your gracious will.
11: 13If you then, who are evil, know how to give good gifts to your children, how much more will Father from heaven (ouranos) give the Holy Spirit to those who ask him!"
11: 16Others, to test him, kept demanding from him a sign from heaven (ouranos).
12: 33Sell your possessions, and give alms. Make purses for yourselves that do not wear out, an unfailing treasure in heavens (ouranos), where no thief comes near and no moth destroys.
12: 56You hypocrites! You know how to interpret the appearance of earth and sky (ouranos), but why do you not know how to interpret the present time?
13: 19It is like a mustard seed that someone took and sowed in the garden; it grew and became a tree, and the birds of the sky (ouranos) made nests in its branches."
15: 7Just so, I tell you, there will be more joy in heaven (ouranos) over one sinner who repents than over ninety-nine righteous persons who need no repentance.
15: 18I will get up and go to my father, and I will say to him, "Father, I have sinned against heaven (ouranos) and before you;
15: 21Then the son said to him, 'Father, I have sinned against heaven (ouranos) and before you; I am no longer worthy to be called your son.'
16: 17But it is easier for heaven (ouranos) and earth to pass away, than for one stroke of a letter in the law to be dropped.
17: 24For as the lightning flashes from under the sky (ouranos) and lights up under the sky (ouranos), so will the Son of Man be in his day.
17: 29but on the day that Lot left Sodom, it rained fire and sulfur from heaven (ouranos) and destroyed all of them
18: 13But the tax collector, standing far off, would not even look up to heaven (ouranos), but was beating his breast and saying, 'God, be merciful to me, a sinner!'
18: 22When Jesus heard this, he said to him, "There is still one thing lacking. Sell all that you own and distribute the money to the poor, and you will have treasure in heavens (ouranos); then come, follow me."
19: 38saying, "Blessed is the king who comes in the name of the Lord! Peace in heaven (ouranos), and glory in the highest!"
20: 4Did the baptism of John come from heaven (ouranos), or was it of human origin?"
20: 5They discussed it with one another, saying, "If we say, 'From heaven (ouranos),' he will say, 'Why did you not believe him?'
21: 11there will be great earthquakes, and in various places famines and plagues; and there will be dreadful portents and great signs from heaven (ouranos).
21: 26People will faint from fear and foreboding of what is coming upon the world, for the powers of the heavens (ouranos) will be shaken.
21: 33Heaven (ouranos) and earth will pass away, but my words will not pass away.
22: 43[[Then an angel from heaven (ouranos) appeared to him and gave him strength.
24: 51While he was blessing them, he withdrew from them and was carried up into heaven (ouranos).

Actes

1: 10While he was going and they were gazing up toward heaven (ouranos), suddenly two men in white robes stood by them.
1: 11They said, "Men of Galilee, why do you stand looking up toward heaven (ouranos)? This Jesus, who has been taken up from you into heaven (ouranos), will come in the same way as you saw him go into heaven (ouranos)."
2: 2And suddenly from heaven (ouranos) there came a sound like the rush of a violent wind, and it filled the entire house where they were sitting.
2: 5Now there were devout Jews from every nation under heaven (ouranos) living in Jerusalem.
2: 19And I will show portents in the heaven (ouranos) above and signs on the earth below, blood, and fire, and smoky mist.
2: 34For David did not ascend into the heaven (ouranos), but he himself says, 'The Lord said to my Lord, "Sit at my right hand,
3: 21who must remain in heaven (ouranos) until the time of universal restoration that God announced long ago through his holy prophets.
4: 12There is salvation in no one else, for there is no other name under heaven (ouranos) given among mortals by which we must be saved."
4: 24When they heard it, they raised their voices together to God and said, "Sovereign Lord, who made the heaven (ouranos) and the earth, the sea, and everything in them,
7: 42But God turned away from them and handed them over to worship the host of heaven (ouranos), as it is written in the book of the prophets: 'Did you offer to me slain victims and sacrifices forty years in the wilderness, O house of Israel?
7: 49'Heaven (ouranos) is my throne, and the earth is my footstool. What kind of house will you build for me, says the Lord, or what is the place of my rest?
7: 55But filled with the Holy Spirit, he gazed into heaven (ouranos) and saw the glory of God and Jesus standing at the right hand of God.
7: 56"Look," he said, "I see the heavens (ouranos) opened and the Son of Man standing at the right hand of God!"
9: 3Now as he was going along and approaching Damascus, suddenly a light from heaven (ouranos) flashed around him.
10: 11He saw the heaven (ouranos) opened and something like a large sheet coming down, being lowered to the ground by its four corners.
10: 12In it were all kinds of four-footed creatures and reptiles and birds of the sky (ouranos).
10: 16This happened three times, and the thing was suddenly taken up to heaven (ouranos).
11: 5"I was in the city of Joppa praying, and in a trance I saw a vision. There was something like a large sheet coming down from heaven (ouranos), being lowered by its four corners; and it came close to me.
11: 6As I looked at it closely I saw four footed animals, beasts of prey, reptiles, and birds of the sky (ouranos).
11: 9But a second time the voice answered from heaven (ouranos), 'What God has made clean, you must not call profane.'
11: 10This happened three times; then everything was pulled up again to heaven (ouranos).
14: 15"Friends, why are you doing this? We are mortals just like you, and we bring you good news, that you should turn from these worthless things to the living God, who made the heaven (ouranos) and the earth and the sea and all that is in them.
17: 24The God who made the world and everything in it, he who is Lord of heaven (ouranos) and earth, does not live in shrines made by human hands,
22: 6"While I was on my way and approaching Damascus, about noon a great light from heaven (ouranos) suddenly shone about me.