Going by broadcast order, the eighth episode of TOS is "Miri" on October 27, 1966.
"Miri" opens as the Enterprise, following a signal, arrives in a star system:
So being "hundreds of light years from Earth" means Miri's planet is at least 100 light years, and possibly at least 200 light years from Earth, and less than 1,000 light years from Earth. There should be about 4,188,786,667 cubic light years within 1,000 light years of earth, and with a stellar density of about 0.004 stars per cubic light year, about 16,755,146 stars within that volume. So the stars system would hardly be identifiable. If there are no colonies that far out, they might be farther from Earth than the Rigel colonies mentioned in "The Doomsday Machine", and thus farther than the 780 to 940 light years that Rigel is distant from Earth.
Beaming down near the source of the signal, they appear in a deserted urban landscape.
Entering a house, they see an old piano:
Spock may calculate that the wood in the piano has been cut for about 300 years, or that there is about 300 years worth of dust on it.
But some fans speculate that Spock identifies the piano as similar to a model made on Earth 300 years ago, and thus they calculate the date of "Miri" is about 300 years after about AD 1960, or about AD 2260.
But if TOS happens in an alternate universe which diverged from ours before TOS was produced, it is possible that Earth was a little more or less advanced in AD 1960 in the TOS timeline. And it is possible that Spock was using a different calendar and year count. So the town in "Miri" might have looked about as advanced as Earth looked in about 1960 in the Miri calendar, or 1960 MC. And Spock says "approximately 1960", so sometime between about 1950 MC and 1970 MC s is indicated. And if Spock's "About three hundred years" could be anywhere between 200 and 400 years, the date of "Miri" could be sometime between 2150 MC and 2370 MC.
And as I said, it is not certain that happening sometime 2150 MC and 2370 MC is the same thing as happening sometime between AD 2150 and AD 2370.
If "Where No Man Has Gone Before" should probably happen sometime between 2096 TM and 2196 TM, and "Miri" should happen sometime between about 2150 MC and 2370 MC, the epoch or year one of the Tarbolde-Mitchell calendar (TM calendar) could be as many as 274 years after the epoch and year one of the MC calendar. But on the other hand, the epoch of the TM calendar could be as many as 46 years after the epoch or year one of the TM calendar. So it is possible that the TM and MC calendars are the same, and also possible that their epochs are decades or centuries apart.
In that house they meet a girl named Miri, who they persuade to take them to an old medical building..
Th e medical building was the site of a life prolongation project. They wonder how there could be children on a planet without adults for centuries.
And we don't know what that figure of three hundred years since the disaster is based on or whether it is more accurate than Spock's previous "at least several centuries", which would be between, say, two hundred and one thousand years.
I think Kirk's interpretation is not very sensible. Miri and Jahn, the oldest two kids remaining in the community, are entering puberty. If their ages are between their 12th and 15th birthdays, and they have aged only three months in three hundred years, they must have been aged about 11 years and 9 months to 14 years and 9 months when the adults died.
And if you assume the time since the disaster was Spock's "at least several centuries" or two hundred to one thousand years, they would have aged 2 to 10 months since the disaster and have been aged about 11 years and 2 months to 14 years and 10 months during the disaster.
So they should have had a good idea of where the dividing line in size and apparent age was between those afflicted by the disease during the disaster and in the following centuries, and those who were not affected by it yet. After Kirk and Miri are attacked by Louise, who has recently changed:
And I think that Miri probably sometime expected to change and die fairly soon by her time standards and tried to deny it at other times..
Miri probably wouldn't be too surprised by that estimate, though certainly not pleased.'
Later:
The kids steal the communicators.
Three days and seven hours are 79 hours, so that is 91 hours, or 3 days and 19 hours, after 170 hours were left, which was sometime after stardate 2713.6. So there are at least 91 hours in 3.8 stardate units, making at least 23.9, or twenty three point nine, hours in a stardate unit.
McCoy identifies the disease:
When McCoy injects himself and Kirk arrives with the communicators:
So it is about 166.8 hours, or 6.9 days, since it was estimated they had 170 hours, If there are 24.5, or fewer hours in a stardate unit, the stardate should now be 2720.3 or higher.
And later:
Earlier:
And this makes me imagine an alternate ending where Spock is alone on the planet after the others all die.
"Miri" opens as the Enterprise, following a signal, arrives in a star system:
KIRK: Earth-style distress signal. SOS.
FARRELL: I've answered it on all frequencies, sir. They don't reply.
SPOCK: Not a vessel, a ground source. The third planet in this solar system, according to my instruments.
FARRELL: Directly ahead. Definitely an Earth-style signal.
KIRK: We're hundreds of light years from Earth, Mister Spock. No colonies or vessels out this far.
SPOCK: Measuring the planet now, Captain. It's spheroid-shaped, circumference twenty four thousand eight hundred seventy four miles. Mass six times ten to the twenty first power tons. Mean density five point five one seven. Atmosphere oxygen, nitrogen.
RAND: Earth!
KIRK: Not the Earth, another Earth. Another Earth?
Captain's Log, stardate 2713.5. In the distant reaches of our galaxy, we have made an astonishing discovery. Earth type radio signals coming from a planet which apparently is an exact duplicate of the Earth. It seems impossible, but there it is.
So being "hundreds of light years from Earth" means Miri's planet is at least 100 light years, and possibly at least 200 light years from Earth, and less than 1,000 light years from Earth. There should be about 4,188,786,667 cubic light years within 1,000 light years of earth, and with a stellar density of about 0.004 stars per cubic light year, about 16,755,146 stars within that volume. So the stars system would hardly be identifiable. If there are no colonies that far out, they might be farther from Earth than the Rigel colonies mentioned in "The Doomsday Machine", and thus farther than the 780 to 940 light years that Rigel is distant from Earth.
Beaming down near the source of the signal, they appear in a deserted urban landscape.
KIRK: Identical. Earth, as it was in the early 1900s.
SPOCK: More the, er, mid-1900s I would say, Captain, approximately 1960.
RAND: But where is everybody?
SPOCK: Readings indicate that natural deterioration has been taking place on this planet for at least several centuries.
Entering a house, they see an old piano:
KIRK: How old is this thing?
SPOCK: About three hundred years.
Spock may calculate that the wood in the piano has been cut for about 300 years, or that there is about 300 years worth of dust on it.
But some fans speculate that Spock identifies the piano as similar to a model made on Earth 300 years ago, and thus they calculate the date of "Miri" is about 300 years after about AD 1960, or about AD 2260.
But if TOS happens in an alternate universe which diverged from ours before TOS was produced, it is possible that Earth was a little more or less advanced in AD 1960 in the TOS timeline. And it is possible that Spock was using a different calendar and year count. So the town in "Miri" might have looked about as advanced as Earth looked in about 1960 in the Miri calendar, or 1960 MC. And Spock says "approximately 1960", so sometime between about 1950 MC and 1970 MC s is indicated. And if Spock's "About three hundred years" could be anywhere between 200 and 400 years, the date of "Miri" could be sometime between 2150 MC and 2370 MC.
And as I said, it is not certain that happening sometime 2150 MC and 2370 MC is the same thing as happening sometime between AD 2150 and AD 2370.
If "Where No Man Has Gone Before" should probably happen sometime between 2096 TM and 2196 TM, and "Miri" should happen sometime between about 2150 MC and 2370 MC, the epoch or year one of the Tarbolde-Mitchell calendar (TM calendar) could be as many as 274 years after the epoch and year one of the MC calendar. But on the other hand, the epoch of the TM calendar could be as many as 46 years after the epoch or year one of the TM calendar. So it is possible that the TM and MC calendars are the same, and also possible that their epochs are decades or centuries apart.
In that house they meet a girl named Miri, who they persuade to take them to an old medical building..
Captain's Log, stardate 2713.6. The building Miri led us to also housed an automatic transmission station, which sent out the signal that drew us to this planet. We also discovered something else. That the blues blotches, characteristic of the unknown disease had appeared on each of us, with the exception of Mister Spock. There was a well-equipped laboratory in the building. Doctor McCoy took tissue samples of each of us in an attempt to isolate the organism responsible.
Th e medical building was the site of a life prolongation project. They wonder how there could be children on a planet without adults for centuries.
SPOCK: This was three hundred years ago, Captain.
KIRK: All the adults are dead. Only the children are left alive.
SPOCK: It's illogical. It does not follow. All the adults on this planet died three hundred years ago, but there are children in the streets.
KIRK: Who die when they enter adolescence.
MCCOY: But how do they keep the line going?
And we don't know what that figure of three hundred years since the disaster is based on or whether it is more accurate than Spock's previous "at least several centuries", which would be between, say, two hundred and one thousand years.
FARRELL [OC]: Here are those figures you asked for. Twelve to the tenth power. Metabolic rate seventy two percent. Production of nucleic acids reduced to thirty three percent of normal. Conventional chronological progression one hundred by three point six.
SPOCK: According to their life prolongation plan, what they thought they were accomplishing, a person would age only one month for every one hundred years of real time.
RAND: One hundred years and only one month?
SPOCK: Exactly, Yeoman. Evidently through some miscalculation, this virus annihilated the entire adult population in a very short period, leaving only the children.
RAND: Do you suppose she knows?
KIRK: I don't think so.
RAND: If they're as old as Spock claims, they must have some idea of what's happening.
KIRK: There's no adult interpretation. I think we're dealing with children. Immensely old perhaps, but nonetheless children. We've got to do something about the others.
I think Kirk's interpretation is not very sensible. Miri and Jahn, the oldest two kids remaining in the community, are entering puberty. If their ages are between their 12th and 15th birthdays, and they have aged only three months in three hundred years, they must have been aged about 11 years and 9 months to 14 years and 9 months when the adults died.
And if you assume the time since the disaster was Spock's "at least several centuries" or two hundred to one thousand years, they would have aged 2 to 10 months since the disaster and have been aged about 11 years and 2 months to 14 years and 10 months during the disaster.
So they should have had a good idea of where the dividing line in size and apparent age was between those afflicted by the disease during the disaster and in the following centuries, and those who were not affected by it yet. After Kirk and Miri are attacked by Louise, who has recently changed:
KIRK: Dead. I don't understand it. My phaser wasn't set to kill.
MIRI: Her name was Louise. She was just a little bit older than I am when it happened. Oh, Jim. (she hugs him)
And I think that Miri probably sometime expected to change and die fairly soon by her time standards and tried to deny it at other times..
KIRK: What about Miri?
SPOCK: Our guess was correct. They contract the disease as they enter puberty and their metabolism changes. The notes would indicate it doesn't become acute for a month or so. I estimate she has perhaps five or six weeks left.
Miri probably wouldn't be too surprised by that estimate, though certainly not pleased.'
FARRELL [OC]: Computer indicates one hundred seventy hours, Mister Spock.
SPOCK: Verified, Captain. We have seven days.
Captain's Log, supplement. This is the second day of the seven left to us. We've found nothing. Enterprise is standing by with labs and computers ready to assist us.
Later:
KIRK: You two will have to recreate their thinking. If you can isolate that virus, we'll be able to develop a vaccine.
MCCOY: Is that all, Captain? We have five days, you know.
KIRK: I know.
The kids steal the communicators.
Captain's Log, stardate 2717.3. Three days, seven hours left to us. Investigation proves that the supply of food in the area is running dangerously low. Unless something is done, the children will starve in a few months. The disease is working on each of us according to Doctor McCoy's prediction. Our tempers are growing short, and We're no further along than we were two days ago.
Three days and seven hours are 79 hours, so that is 91 hours, or 3 days and 19 hours, after 170 hours were left, which was sometime after stardate 2713.6. So there are at least 91 hours in 3.8 stardate units, making at least 23.9, or twenty three point nine, hours in a stardate unit.
McCoy identifies the disease:
MCCOY: The disease, Captain, the one they created three hundred years ago.
When McCoy injects himself and Kirk arrives with the communicators:
KIRK: (with children and communicators) Three hours, eleven minutes left. Thank you, Lieutenant. Keep this channel open. Clear your computers. What happened to him?
So it is about 166.8 hours, or 6.9 days, since it was estimated they had 170 hours, If there are 24.5, or fewer hours in a stardate unit, the stardate should now be 2720.3 or higher.
And later:
RAND: They were just children. Simply to leave them there with a medical team
KIRK: Just children, three hundred years old and more. I've already contacted Space Central. They'll send teachers, advisers.
Earlier:
KIRK: And you? The disease doesn't seem to be interested in you.
SPOCK: I am a carrier. Whatever happens, I can't go back to the ship, and I do want to go back to the ship, Captain.
And this makes me imagine an alternate ending where Spock is alone on the planet after the others all die.
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