Mendel
Senior Member.
Atlas V launch, November 13th 2020, from Cape Canaveral with NROL-101 spy satellite.
The lower part of the launch trail is shaded by the globe, while the upper part is lit by the sun.
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Beautiful Photographs that show the Earth's Curvature
- Thread starter Mendel
- Start date
Atlas V launch, November 13th 2020, from Cape Canaveral with NROL-101 spy satellite.
The lower part of the launch trail is shaded by the globe, while the upper part is lit by the sun.
Mendel
Senior Member.
Power lines on Lake Pontchartrain, Louisiana
Mendel
Senior Member.
Zoomed-in image of Lake Pontchartrain causeway, from a high hotel window at the Northern end
Mendel
Senior Member.
Article: Morning Glory
Posted on December 13, 2011by Shannon Winslow
This sunrise this morning, framing Mt Rainier (with its shadow cast on the underside of the clouds), made me wish for the eloquence of a poet to describe its glories.
Mendel
Senior Member.
Mendel
Senior Member.
This picture of the offshore windpark Thorntonbank from the Belgian coast perfectly shows the earth curvature.
Mendel
Senior Member.
Source: https://www.youtube.com/watch?v=Z3xkHmC-KQE
Source: https://www.youtube.com/watch?v=1zJ9FnQXmJI
You can do a video like this with any equatorial mount, which is basically a tripod with a motor-driven mount that spins a telescope (or a camera) at the exact rate the globe turns (~359°/day). You need to adjust its tilt to your location so that the axis of spin is perpendicular to the equator, hence the name.
Source: https://www.youtube.com/watch?v=1zJ9FnQXmJI
You can do a video like this with any equatorial mount, which is basically a tripod with a motor-driven mount that spins a telescope (or a camera) at the exact rate the globe turns (~359°/day). You need to adjust its tilt to your location so that the axis of spin is perpendicular to the equator, hence the name.
Mendel
Senior Member.
Here's a picture showing the apparent absence of curvature on a curved object:
JMartJr
Senior Member
I wish somebody with the right equipment would do one like the basketball image above, but of a bowling ball -- to avoid getting into side arguments about whether the bumpiness is concealing a curve that would be visible otherwise. And yes, I understand that the Earth is a bit bumpy in places, but the fewer side-arguments, the better!
Mendel
Senior Member.
(photo by @Amber Robot, originally posted here: "I took this picture with a 300mm zoom lens last week of the Pacific Ocean just after sunset. I can see a sharp edge and even see the *tops* of clouds poking up over the horizon." )
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Sasquatch
New Member
As far as I know, there is no high hotel on the northern end. I assume you mean the southern end (New Orleans side). Probably the Marriott and looking north?
Zoomed-in image of Lake Pontchartrain causeway, from a high hotel window at the Northern end
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Mendel
Senior Member.
I'm sorry, you're correct.
The video says it's from Three Lakeway Center which is also known as New Orleans Marriott Metairie at Lakeway (3838 North Causeway Boulevard, Metairie). The building has 34 floors and is 122m high.
Mendel
Senior Member.
Eric Brummel has 3 of these on his youtube channel.
Source: https://m.youtube.com/watch?v=w8OK7M2_hUg
Here's a beautiful visualisation of how it works:
Source: https://m.youtube.com/watch?v=JmCNNHQ86NE
P.S. the stars look the same (no distortion) from any place on Earth where you can see them. This is not possible with a dome.
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FatPhil
Senior Member.
Augmented such that "a sufficiently large dome" (so with negligible paralax) wouldn't be a counter-example.
Mendel
Senior Member.
I really don't want this to be a discussion thread, so let me just point out the sun and the moon tracks in the "star-stabilized sky" video: they don't have parallax against the "star dome" (except for a tiny bit).
JMartJr
Senior Member
I wish somebody with such a camera would recreate this with a bowling ball or other smooth ball. The "horizon" of texture bumps (pebbling?) allow somebody so inclined to see visible curvature. I'm curious if that would be true with this sort of camera on a smooth sphere.Here's a picture showing the apparent absence of curvature on a curved object:
Mendel
Senior Member.
You had the exact same idea 22 months ago, in post #9.
JMartJr
Senior Member
Well shoot...You had the exact same idea 22 months ago, in post #9.
It's an old idea. I've posted it many places/times, in hopes that somebody reading it will have the kit to take the shot. I'll try to recall that this is one of the places I've already posted in the future. (Something ambivalent in the syntax there...)
The fact that it was in this very thread IS a bit embarrassing! The only thing I can say in favor of getting old is that, so far, I prefer it to the alternative!
In the meantime, any time somebody posts the basketball, everybody just say to themselves "I bet JMartJr is still pining for that bowling ball shot!" Or just take the shot so I can stop being a nuisance!
captancourgette
Active Member
Surely the first shot with the smoke trail being partly in shadow is possible on a flat earth. Its an absolutely beautiful photo btw.
Im not sure what flat earth believers think the earth is? A cube, A disk/square of X km thickness, whatever it is, but nothing stops this from occurring on a flat surface, actually thinking about this now(*) how do flatearthers account for different timezones, how is it dark here now whilst I can ring my family and it being day time (just measured and its 505km away from the antipodes of where I am now)
(*)honestly I've always give flatearth beliefs as much of my limited time as I do photos of UFOs with lights on them, bugger all
Im not sure what flat earth believers think the earth is? A cube, A disk/square of X km thickness, whatever it is, but nothing stops this from occurring on a flat surface, actually thinking about this now(*) how do flatearthers account for different timezones, how is it dark here now whilst I can ring my family and it being day time (just measured and its 505km away from the antipodes of where I am now)
(*)honestly I've always give flatearth beliefs as much of my limited time as I do photos of UFOs with lights on them, bugger all
Rory
Senior Member.
Credit: Andrew McCarthy
While this does show our beautiful round shadow, it's actually a bit misleading. Earth's umbra (the darker portion of the shadow) is much smaller than our planet's diameter, so in composites like this it doesn't truly show the scale of our planet. The dark part of the shadow was about 2.7x the width of the moon, while Earth is actually about 4 times the width.
The shadow turns red due to the light scattering through our atmosphere. If you were on the moon, Earth would look like a red ring (with a solar corona around it). When we have permanent lunar residents, we'll be able to get photos of the event from the lunar surface!
To see more of my work or learn about how these types of things are done you can check out my Instagram.
I also wrote a little blog about how I got into this hobby if you’re curious what it might take to get started, on my website here.
JMartJr
Senior Member
Pertti Niukkanen
Member
There's an animation by NASA's Scientific Visualization Studio "September 27, 2015 Total Lunar Eclipse: View from the Moon", https://svs.gsfc.nasa.gov/4341#22148. It would be really great to see the same live.Hey NASA, I know you are reading this thread -- when it comes time to schedule a lunar landing, maybe keep this in mind. Would be really cool.
Mythic Suns
Member
Basically a colossal pizza.
The one theory I've often seen going around is that the sun is a massive spot lamp that moves around the flat earth. I don't know the exact details (such as how this explains sunsets) but I know that this is one of the theories.
I've always tried to but I usually end up inevitably running into it, although amazingly I've never met anyone at any of the Colleges I've attended who believes in the Flat Earth theory. They'll believe a whole bunch of other conspiracy theories but the Flat Earth theory almost never gets mentioned.
Mythic Suns
Member
Shot this one at Bude in Cornwall just last month using a Sony A6000 with a 16-50mm lens attached. I had the lens zoomed in to 40mm.
Mythic Suns
Member
Same date and location but this one was shot a little bit earlier with a DJI Mini 3 Pro. The lens has a fixed range of 24mm so any curvature caused by the lens would be somewhere between negligible and non-existent. Altitude, going by memory, would've been roughly 380ft (about 115 metres).
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