Only 93 million miles away. The sun sets… But it really set 8 minutes earlier! It’s just that light takes that long to get from the sun to us.
OK, now look up at the stars. Some of them are actual stars and others are nebulae and galaxies.
Light takes time to travel. They talk about light years, some stars are only a few light years away. Some are thousands, or millions, or billions of light years away.
Now think about radio waves. They travel at the speed of light too… So TV and radio signals from Earth started travelling from when we first broadcast radio back in the 1920’s or 30’s? Thats a sphere around the Earth with a radius of about 90 or 100 years. So a planet 90 light years away might just about be hearing our signals. Imagine what they would do. They can’t travel here at the speed of light, but they might reply, but that will take 90 years to reply. Closer stars could have planets that reply sooner. But it’s still going to be a boring conversation!
Seen a couple of nights ago, a blurry setting Moon, chasing the Sun round the sky.
You can tell what angle the Moon is to the Sun because of the angle of the curve on the sunlit side. As the Moon waxes and wanes the position of the Sun can be worked out, full Moon=the Sun is on the other side of the Earth, a sliver of Moon, the Moon is in between the Earth and the Sun. Eclipse? If the Moon Eclipses the Sun it is directly between the other two bodies. If the Moon turns bright red its the Earth getting between the Moon and Sun, its only really then that you can see the curvature of the Moons surface, whichis usually so reflective that it looks bright and flat.
I guess this is the most number of times I’ve written ‘”Moon” in a blog!
After walking five miles this afternoon my hubby suggested we took a short walk this evening as it was still warm and the sun was bright even though it was going down. We walked past an old school with wavy railings. It is in the process of being knocked down. Then as my hubby walked away from me I stopped and caught a shot of him striding into the sunset (by then my feet were hurting). But that was another two miles so I did just over seven in total. Its the furthest I have walked for a couple of months. I must do more!
#30daysketchbookchallenge, Day 23 drawing. Sun and Moon in an eclipse. I couldn’t get the black dark enough and the colours bright enough so I used Instagram filters on it….
I’ve seen a couple of eclipses in the UK. They were only partial eclipses but by looking in a bowl of water, and also the dark reflective paint on my car I managed to see something. Also the phenomenon of curved moon shapes of light caused by light from the partially eclipsed sun shining through vegitation.
NEVER LOOK AT THE SUN DIRECTLY EVEN IN AN ECLIPSE. IF YOU ARE USING FILTER GLASSES MAKE SURE THEY ARE NOT FAKE. IF YOU LOOK DIRECTLY AT THE SUN YOU CAN BE BLINDED!
At the start of January it was getting dark around 4.40pm and we were having about eight hours of light. Now it’s staying light till after five. I feel like a weight is lifting slightly. Like the edges of a blanket being pulled up and light seeping in around the edges.
The clouds have obscured the sunset for the last few days. We’ve had almost a months rain in a day in some places in the UK with storm Christoph causing flooding in Wales and Northern England. We have avoided the worst here, but twenty miles or so away the town of Northwich in Cheshire is flooded in places and the river Severn is close to flooding over.
Reflected shadows and bright highlights, a firy beacon beyond the horizon. It rose eight minutes ago. But light is not infinitley fast, and so it takes that time to travel the 93 million miles or so to get here. If you could hear the Sun sizzle the sound would take hours or even days, as the speed of sound is far slower ( thats why lightening always flashes first and then the rumble follows). But sound doesnt travel through a vaccuum. I get so irritated with Sci-fi films. Outside in space- no one can hear you scream… you need an atmosphere to hear, as molecules bump into other molecules and sound propagates…. soundwaves make your eardrums vibrate and tiny bones send that movement to your brain…