APOD: Lunar Orbiter Earthset (2016 Aug 27)

Comments and questions about the APOD on the main view screen.
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APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by APOD Robot » Sat Aug 27, 2016 4:13 am

Image Lunar Orbiter Earthset

Explanation: August 10th was the 50th anniversary of the launch of Lunar Orbiter 1. It was the first of five Lunar Orbiters intended to photograph the Moon's surface to aid in the selection of future landing sites. That spacecraft's camera captured the data used in this restored, high-resolution version of its historic first image of Earth from the Moon on August 23, 1966 while on its 16th lunar orbit. Hanging almost stationary in the sky when viewed from the lunar surface, Earth appears to be setting beyond the rugged lunar horizon from the perspective of the orbiting spacecraft. Two years later, the Apollo 8 crew would record a more famous scene in color: Earthrise from lunar orbit.

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evergreeen

Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by evergreeen » Sat Aug 27, 2016 7:20 am

The Earth was healthier then. At the time image was taken. There was no plundering of the Earth's precious natural resources for space programs utilizing use and throw away space probes. Eventually, the abandoned space collateral must be retrieved and returned to the Earth for recycling.
Some of the programs were outright non sense involving multiple search missions for water and signs of life on Mars. It is an insult to human intellect to assert that man and company are the only living beings in the universe. The universe must be explored but rocketry is not the way to do it.

The Pioneer 10 mission. Sending off etched portrait of man in birthday suit was a silly thing to do. Since then, numerous wars and conflicts have plagued the Earth and its multitude of inhabitants. The white rhinocerus went extinct. Cutting down woodland have caused the land to bleed into the sea. And exploiting virgin terrain for minerals that could otherwise be had through recycling have disturbed the bio equilibrium. If the present course of human derailment continues man may be the one going extinct - not thru lack of numbers - but in lack of substance.

Tons and tons of venera craft were landed on Venus only to find a blistering cindering landscape that is inhospitable to any form of life, human or e.t.
The process of planet building is a timely thing. The Suns inner planets continue to develop. Over time Venus will evolve into a world beyond any intellectual expectation. Venus will continue to be uninhabitable, but only due to administrative reason.

The Earth's preciousness must be aknowledged by human being living upon it. Wasting the Earth's precious natural resources to explore other worlds is both non sense and non science. Therefore, man must take care to discover and rediscover the planet nearest to him .. The Earth.

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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by hamilton1 » Sat Aug 27, 2016 11:26 am

Okay if you say so....

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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by neufer » Sat Aug 27, 2016 12:28 pm

evergreeen wrote:
The Earth was healthier then. At the time image was taken. There was no plundering of the Earth's precious natural resources for space programs utilizing use and throw away space probes. Eventually, the abandoned space collateral must be retrieved and returned to the Earth for recycling.
Extremism in the defense of the environment is no virtue.
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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by Chris Peterson » Sat Aug 27, 2016 2:36 pm

evergreeen wrote:The Earth was healthier then. At the time image was taken. There was no plundering of the Earth's precious natural resources for space programs utilizing use and throw away space probes. Eventually, the abandoned space collateral must be retrieved and returned to the Earth for recycling.
Some things are healthier now. When this image was taken, air pollution was much worse in the developed world, rivers were catching on fire, and we were using much more harmful chemicals on our crops. What has become more unhealthy since then is largely a consequence of our out-of-control population growth.

I don't think a few thousand kilograms a year of mass loss (mostly consisting of common elements) to space is ever going to have any impact. Indeed, the Earth is accumulating approximately 50 tons of new material every day from space. And every few million years, we accumulate, in a single event, more than we'll ever send into space over the lifetime of our species.
Chris

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neufer
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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by neufer » Sat Aug 27, 2016 4:16 pm

Chris Peterson wrote:
evergreeen wrote:
The Earth was healthier then. At the time image was taken. There was no plundering of the Earth's precious natural resources for space programs utilizing use and throw away space probes. Eventually, the abandoned space collateral must be retrieved and returned to the Earth for recycling.
Some things are healthier now. When this image was taken, air pollution was much worse in the developed world, rivers were catching on fire, and we were using much more harmful chemicals on our crops.
  • And we were merrily spraying CFCs into the atmosphere with our aerosol cans.
https://en.wikipedia.org/wiki/Aerosol_spray wrote: <<In 1974, Drs. Frank Sherwood Rowland and Mario J. Molina proposed that chlorofluorocarbons, used as propellants in aerosol sprays, contributed to the depletion of Earth's ozone layer. In response to this theory, the U.S. Congress passed amendments to the Clean Air Act in 1977 authorizing the Environmental Protection Agency to regulate the presence of CFCs in the atmosphere. The United Nations Environment Programme called for ozone layer research that same year, and, in 1981, authorized a global framework convention on ozone layer protection. In 1985, Joe Farman, Brian G. Gardiner, and Jon Shanklin published the first scientific paper detailing the hole in the ozone layer. That same year, the Vienna Convention was signed in response to the UN's authorization. Two years later, the Montreal Protocol, which regulated the production of CFCs was formally signed. It came into effect in 1989. The U.S. formally phased out CFCs in 1995.>>
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Catalina

Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by Catalina » Sat Aug 27, 2016 8:39 pm

Evergreen, you fail to understand that many man-made satellites currently orbiting the Earth are mapping, measuring, and gathering data about the environmental health of our planet in order to help us impact it less negatively. The more we learn, the better we can care for the Earth.

I have a question about today's EPOD:
When the caption says "restore" the photograph, is more like "enhance" the photograph? It is not possible to restore it to a higher resolution, is it?

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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by Chris Peterson » Sat Aug 27, 2016 9:18 pm

Catalina wrote:I have a question about today's EPOD:
When the caption says "restore" the photograph, is more like "enhance" the photograph? It is not possible to restore it to a higher resolution, is it?
That's a tricky question, because it depends on how we define "resolution". Because the original data was analog, it is entirely possible that a processed image made from a digitized version of the original data could be displayed with higher resolution- both spatially and in terms of dynamic range- than was possible with the film output technology available 50 years ago. That is, it may be possible to see more detail in that old data today than was possible back then.
Chris

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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by geckzilla » Sun Aug 28, 2016 12:32 am

Looking at the original release image, pictured side by side here at this website, I am under the impression that a lot of painstaking labor was required and this would indeed be more of a restoration/recovery than an enhancement, though the two are difficult to separate sometimes.
https://stardate.org/astro-guide/galler ... -earthrise
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Re: APOD: Lunar Orbiter Earthset (2016 Aug 27)

Post by Boomer12k » Sun Aug 28, 2016 4:00 am

Awesome... too bad black and White, a color Earth would be reminiscent of "Earth Rise".... but as it was 1966..... VERY UNDERSTANDABLE....

Well, I have been thinking about a smaller scope, because my 10" Meade, is too big, and heavy to really use here, the walkway is too narrow, and if I take it around from the back way, the lawn has a nasty tilt and turn, and I don't want any accidents. So..... I bought a smaller scope... a 6" LightSwitch Schmidt-Cassegrain Telescope from Meade,... seems they are fully automatic, flick a switch and it aligns up and everything.... and has a built in camera, and at less than 45 pounds much less difficult to handle than the 100+ pound 10" er....And I got the Promo Bundle that was just about over. So, I look forward to getting back into astrophotography. I saw some pictures take by one, and they look really good... much better than my low resolution Deep Sky Imager. So here is hoping....

Really nice pic today.....
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