Signal is anything that isn't noise in an image, be it terrestrial or otherwise. Noise can come from the heat of the CCD chip itself, or from the camera's process of reading the chip, called read noise. Everything else, the image itself, is the signal. By averaging multiple pictures of the same object taken from the same angle and same conditions we can average out the noise (since noise is random) and increase the signal (since that will remain identical in every picture).
M82 is a galaxy, not a supernova (supernovas are something you can find within a galaxy). It has radio emissions, x-ray emissions, visible light emissions, etc. It was first seen in 1774 by Johann Elert Bode. Pierre Méchain independently found it again in 1779 and reported it to Charles Messier, who measured its position and recorded it as the 82nd object in his catalogue in 1781.Astronut,
Yes but isn't M82 supernova detected only by it's radiowave emmissions? It is invisible otherwise, the 'galaxy' is 'invisible', are there any other signals coming from M82? Can you tell more about how M82 was dicovered and when?
M82 is a galaxy, not a supernova (supernovas are something you can find within a galaxy). It has radio emissions, x-ray emissions, visible light emissions, etc. It was first seen in 1774 by Johann Elert Bode. Pierre Méchain independently found it again in 1779 and reported it to Charles Messier, who measured its position and recorded it as the 82nd object in his catalogue in 1781.
The sun does orbit the earth just like the Bible says so, I think you will find that the very latest astronomical evidence agress with a Geocentric universe, God will reveal more of this as time goes on, most of course will reject God's word and what their eyes and senses tell them and simply believe the lies of Satan, this is to be expected and is prophecised as so.
Isaiah 40:22
22 He sits enthroned above the circle of the earth,
and its people are like grasshoppers.
He stretches out the heavens like a canopy,
and spreads them out like a tent to live in.
Exactly. But in what sense? Spherical sense?
Just as the Bible describes the circumference of the horizon, which can only be understood by the rational mind in the sense of a sphere!
Or flat dome sense? The circle of the earth is the equator. But at this time they did not know the earth was spherical.
Of course Isaiah and Moses and Enoch and all the Prophets knew the earth was sphere! To propose that the Bible teaches a flat earth is simply absurd, or are you trying to say that God doesn't know what shape the earth is?
Their idea of the earth was a hemispherical dome. If you went over the edges of this circle circumference you'd drop off
That is simply not true, you have no evidence for this, flat earth theory originated around the time of Christopher Columbus, primarily as a sensationalist, common news item tidbit.
, or , there was some sort of border or somethign to stop you going past it, like a mountain range. That's why it refers to the heavens like a canopy and a tent that is spread out over the top of you, rather than being wrapped all around you in the spherical sense.
What are you talking about 'Snail???
Just as the Bible describes the circumference of the horizon, which can only be understood by the rational mind in the sense of a sphere!
Of course Isaiah and Moses and Enoch and all the Prophets knew the earth was sphere! To propose that the Bible teaches a flat earth is simply absurd, or are you trying to say that God doesn't know what shape the earth is?
That is simply not true, you have no evidence for this, flat earth theory originated around the time of Christopher Columbus, primarily as a sensationalist, common news item tidbit.
What are you talking about 'Snail???
Purely looking at the horizon alone will not indicate that the earth is spherical - because you are only looking at a very small part. You'd have to view the horizon from many points around the earth to conclude it is spherical - and I don't think any of the bible men in the old testament travelled that far. It could be hemispherical as I said before, or the very slight apparent curvature of the earth in the distance can be explained by light distortion and illusions due to a curved hemispherical dome sky. There is no evidence from the bible whatsover that the earth is spherical, none.
They could not have known the earth was spherical unless they travelled into space or around the world. Considering they lived all their life in a small regional area not to mention not being near any sort of great ocean from which to observe any horizon easily, I consider that very unlikely.
The surrounding nations of Israel had flat-earth ideas, Babylon, Egypt etc, considering that Israel spent 400 years in Egypt plus some time in Babylon and other nations during exile, it is likely they also had flat-earth views. As neighbors, the ancient Hebrews had the Egyptians to the southwest and the Babylonians to the northeast. Both civilizations had flat-earth cosmologies. The Biblical cosmology closely parallels the Sumero-Babylonian cosmology, and it may also draw upon Egyptian cosmology.
The bible uses the word tent to describe the heavens. Obviously a tent does not wrap completely around like a bag. It descibes a covering over the top of the earth rather than something which is wrapped entirely around. If the earth was spherical, better language to use would be that God wrapped the heavens around the earth like a bag and it doesn't say that at all.
Exactly. But in what sense? Spherical sense? Or flat dome sense? The circle of the earth is the equator. But at this time they did not know the earth was spherical. Their idea of the earth was a hemispherical dome. If you went over the edges of this circle circumference you'd drop off , or , there was some sort of border or somethign to stop you going past it, like a mountain range. That's why it refers to the heavens like a canopy and a tent that is spread out over the top of you, rather than being wrapped all around you in the spherical sense.