A 2027 Chart Is Right. Its Months Are One Row Off.

Next year's charts go up around now. The 2027 guides are appearing across practitioner sites — the zodiac-by-zodiac forecasts we looked at yesterday, and alongside them the thing that is actually checkable: a full Flying Star annual chart, nine palaces with a number in each. One of them, Master Sean Chan's 2027 page, last updated September 24, publishes its chart plainly enough to run against our own.

We did. The annual half is right — completely right, as far as we can check it. The monthly half, sitting a few paragraphs below it on the same page, is systematically wrong in a way that has a single cause and a clean name. That combination is worth writing up, because a reader has no way to tell from the page which half they are reading.

The annual chart checks out

2027 is Yin Fire Goat, and the annual center star is 9. Our own annual-center function is anchored on 2024 = 3 and decreases by one per solar year, which puts 2026 at 1 and 2027 at 9; flying that forward through the fixed Lo Shu path gives 1 in the northwest, 5 in the north, 3 in the northeast, 2 in the west, 9 in the center, 7 in the east, 6 in the southwest, 4 in the south and 8 in the southeast. The page's chart is that chart, palace for palace. The cover picture above is our computed version, not a copy of theirs.

The rest of its annual furniture holds up too, and each piece is a rule you can state in one line. Tai Sui sits in the year's own branch, the Goat, which is the southwest. The Year Breaker is the branch opposite, the Ox, which is the northeast. The Three Killings for the Pig–Rabbit–Goat group fall in Monkey–Rooster–Dog, the west. All three are where the page puts them. It also starts the year at the Start of Spring (Li Chun) rather than at Lunar New Year, on February 4, 2027 — our own solar-term series puts that four minutes earlier than the page does, and since that series is deliberately truncated, four minutes is inside what it is good for and not something we will adjudicate.

Then the monthly figures arrive from a different year

A few paragraphs down, the page turns to the months. It names three in which 9 Purple sits in the center — the Dragon month in April–May, the Pig month in November–December, and the Ox month in January–February 2028 — and calls these the strongest windows. It names one strictest month, the Monkey month in August–September, when 5 Yellow takes the center. It also carries a correction on the Pig month, flagged inline:

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Pig Month (November-December — correction: Pig has 2 Black, see below)

The monthly Purple-White rule, which places the month stars, is not complicated, and it is not a matter of interpretation. The month star that goes in the center is picked from a three-row table keyed to the year's earthly branch: in a Rat–Horse–Rabbit–Rooster year the Tiger month starts at 8, in a Dragon–Dog–Ox–Goat year it starts at 5, and in a Tiger–Monkey–Snake–Pig year it starts at 2. From there each following solar month counts down by one, and whatever lands in the center flies forward through the nine palaces as usual. Three rows, and the only input is the year's branch.

2027 is Yin Fire Goat. The Goat is in the Dragon–Dog–Ox–Goat row, so the Tiger month starts at 5 and the year runs 5, 4, 3, 2, 1, 9, 8, 7, 6, 5, 4, 3 from the Tiger month through the Ox month. That makes the Dragon month 3, the Monkey month 8, the Ox month 3, and the Pig month 5.

Now put the page's four figures beside the bottom row of that table — the Tiger–Monkey–Snake–Pig row, which starts at 2 and runs 2, 1, 9, 8, 7, 6, 5, 4, 3, 2, 1, 9. The Dragon month is 9. The Monkey month is 5. The Ox month is 9. The Pig month is 2. Those are the page's four numbers, all four of them, in order. Not approximately: exactly. The months were read off the right table and the wrong row.

The correction made the page consistent, not correct

The inline correction is the part worth slowing down on, because it shows what kind of error this is. The page originally listed the Pig month among the three months holding 9 in the center. The correction moves it to 2 Black. And 2 is what the Tiger–Monkey–Snake–Pig row gives for the Pig month — so the correction did not reach outside the mistake. It took the one figure that was wrong even by the wrong row and brought it into line with the others. The page is now internally consistent across all four months, and no closer to the chart 2027 actually runs.

There is a small irony in it. The Pig month genuinely is not a good window — it is one of the two months 5 Yellow sits in the center, which is heavier than the 2 Black the correction assigned it. So the correction moved in the right direction, past the right answer, and stopped on a number from another year. A reader following it will be careful in the Pig month for a reason that is not the reason, which happens to be better than being careless, and is not the same as being right.

Where the real windows fall

If the point of naming months is to tell somebody when to act, the corrected list sends them to the wrong four. Under the right row, 9 Purple sits in the center exactly once in 2027: in the Goat month, which our solar-term code puts from July 7 to August 8. The page does not mention that month at all. 5 Yellow sits in the center twice — in the Tiger month, from the Start of Spring on February 4 to the Awakening of Insects on March 6, and in the Pig month, from November 7 to December 7. The Monkey month the page singles out as strictest is an 8, which is the mildest reading in the set.

You can look at 2027's chart this month

There is a convergence here that makes the whole thing cheap to check, and it is live right now. The solar month we are in — the Dog month, which began at Cold Dew on October 8 and runs to the Start of Winter on November 7 — has 9 in its center as well. 2026 is Yang Fire Horse, a Rat–Horse–Rabbit–Rooster year, so its Tiger month starts at 8 and the ninth month down lands on 9. A center of 9 flies forward to the same nine numbers whether it arrived as a month star or a year star, so the monthly chart sitting over your house this October is, number for number, the annual chart 2027 will run on from February.

That is not a mystical coincidence; it is arithmetic, and it is useful: anything you want to understand about the 2027 annual chart is visible this month without waiting. It also happens to be the check that settles the row question from outside our own code. The October 2026 forecasts we found while looking for this story put 9 in the center and flag the north and the west — and with 9 in the center, the north is 5 and the west is 2. Independent sources, our arithmetic, same answer.

Our honest read

The thing we would not want lost in this is that the page did the hard part well. Printing nine numbers is a commitment; most 2027 coverage avoids it precisely because a chart can be checked and a paragraph about fluctuating fortune cannot. We would rather read a page that publishes a chart and gets one layer wrong than a page that publishes nothing checkable at all, and we would rather it published the correction than not.

But the correction is also the lesson. It fixed a symptom — one month out of step with its neighbors — without asking why the neighbors were where they were. That is the characteristic shape of a table-lookup error: the figures are mutually consistent, which is what makes them feel verified, and they are consistent because they all came from the same wrong place. The fix for that is never to adjust one entry. It is to re-derive one entry from the rule and see whether the rest follow.