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Japan’s Epsilon rocket launches seven tech demo satellites
spaceflightnow.com...
spaceflightnow.com...
Seven small satellites launched aboard a Japanese Epsilon rocket Friday, including a diverse suite of tech demo payloads and a spacecraft designed to create an artificial meteor shower next year that developers say should be visible with the naked eye.
SpaceX's Starlink Could Change The Night Sky Forever, And Astronomers Are Not Happy
www.forbes.com... 59b6
www.forbes.com... 59b6
“The potential tragedy of a mega-constellation like Starlink is that for the rest of humanity it changes how the night sky looks,” says Ronald Drimmel from the Turin Astrophysical Observatory in Italy. “Starlink, and other mega constellations, would ruin the sky for everyone on the planet.”
How to See and Photograph Geosynchronous Satellites
By: Bob King | September 20, 2017
www.skyandtelescope.com...
Honey, Let’s Start Seeing Other Satellites
By: Bob King | August 2, 2017
www.skyandtelescope.com...
originally posted by: More1ThanAny1
a reply to: turbonium1
My friend,
When you watch the Sun set to the west, do you think the Sun has fallen to Earth?
originally posted by: More1ThanAny1
a reply to: turbonium1
My friend,
When you watch the Sun set to the west, do you think the Sun has fallen to Earth?
Japan’s Epsilon rocket launches seven tech demo satellites
spaceflightnow.com...
spaceflightnow.com...
Seven small satellites launched aboard a Japanese Epsilon rocket Friday, including a diverse suite of tech demo payloads and a spacecraft designed to create an artificial meteor shower next year that developers say should be visible with the naked eye.
SpaceX's Starlink Could Change The Night Sky Forever, And Astronomers Are Not Happy
www.forbes.com... 59b6
www.forbes.com... 59b6
“The potential tragedy of a mega-constellation like Starlink is that for the rest of humanity it changes how the night sky looks,” says Ronald Drimmel from the Turin Astrophysical Observatory in Italy. “Starlink, and other mega constellations, would ruin the sky for everyone on the planet.”
How to See and Photograph Geosynchronous Satellites
By: Bob King | September 20, 2017
www.skyandtelescope.com...
Honey, Let’s Start Seeing Other Satellites
By: Bob King | August 2, 2017
www.skyandtelescope.com...
originally posted by: turbonium1
By that argument, you're suggesting all objects which appear to move lower, within the air, are NOT moving lower, at all, due to 'perspective'!
originally posted by: turbonium1
It's hard to ignore distance when talking about perspective, but you managed to ignore it completely.
originally posted by: turbonium1
The rocket's nose will indicate whether it is flying upward, or downward, or level, within air. ... I've never seen a rocket fly upward, but appear to fly downward, after a launch, in videos. They all vanish over the ocean, flying the same way. Not downward.
originally posted by: turbonium1
Another point - the boosters eject above the rocket, when they are supposed to eject below the rocket, when flying upward into 'orbit'.
If you were below the rocket, on the Earth, you'd see the boosters below the rocket, not above it. You'd also see the rocket's nose pointed upward, away from Earth, not downward, towards Earth.
originally posted by: turbonium1
Perspective cannot make objects appear to move in an opposite direction to the actual path, nor can it make other objects eject from the original object appear above it, if they actually are below it, either.
originally posted by: OneBigMonkeyToo
a reply to: turbonium1
God is so unimaginative that he can only create a flat Earth? He nade all these other spheres but couldn't work out what shape to make Earth.
You make God out to be pretty dumb. He won't be pleased about that.
originally posted by: More1ThanAny1
I am not suggesting all objects, because that would be silly. Perspective can be the cause of many different optical illusions. In this case, the illusion is that the rocket is moving down but its not, its moving away. The downward movement can also mean its actually moving down but we know its not in this case.
originally posted by: More1ThanAny1
In the laws of perspective, when projecting onto a 2D surface like our computer screens, distance mostly defines an object's size and speed, which is not in question here. So distance is irrelevant at this time.
originally posted by: More1ThanAny1
That is a big wall of text, let me respond with something better. Here is an animation I made with a 3D modelling software (which mathematically simulates the laws of perspective). This animation is not to scale, but the laws of perspective remain the same.
The window on top shows a left side view of a rocket and a camera's position, angle, and field of view.
The window on the bottom shows the camera's perspective.
As you can see from the left side view, at no point is the rocket moving downwards. It transitions from an upward movement to a horizontal movement (similar to how a rocket is put into orbit). When the rocket reaches a 45 degree angle it jettisons the boosters which then slow down.
From the cameras perspective, when the rocket reaches a 45 degree angle, an optical illusion starts where it appears the rocket is moving downward, but its not moving downward at all. It also appears the boosters are above the rocket, but they are not, the are both below and behind the rocket.
It's all about perspective. Do you see it clearly now?