Why We Publish No Star When the Time of Death Is Unknown
The sky turns about 15 degrees every hour, so “what time” decides “which star.” When a record has a date but no reliable time, any computed star could be wrong. Our rule is simple: publish nothing rather than guess.
Because time decides the answer. The sky’s rotation is fast enough that a few hours of uncertainty can change which star is nearest the zenith — sometimes into a different constellation entirely. When no reliable time exists, we publish the date and place only and state plainly that no star is computed. That is more honest, and more useful, than a star that cannot be checked.
Why a few hours change the answer
Earth rotates roughly 15 degrees per hour, so the region of sky at the zenith shifts about 15 degrees every hour. For the question “which star is nearest the zenith,” an hour of uncertainty spans a patch of sky about thirty full moons wide. If all we know is “at night” or “in the early hours,” the star we would compute is just one of many possibilities.
Three confidence tiers, three treatments
In our case library, every record carries a confidence tier for the time: documented (recorded), sourced but approximate (approximate), or no reliable time at all (unknown). The first is computed as usual; the second is computed with the approximation stated; the third publishes the date and place with no star. The tiers let a reader see at a glance which conclusions can be cited and which are only leads.
Real cases beat principles
The case library includes exactly this: a famous first moonwalker whose time of death is not clearly recorded in public sources, a well-known dog who waited for his owner whose exact passing is unverifiable, and a signing gorilla whose death is reported only by date. Those pages are still published — date, place, life, sources — with no star. The blank space is part of the record.
Why “just give them a star anyway” fails
If an organization still produces a star when the time is unknown, a reader cannot tell the difference: it looks exactly like the documented cases — equally beautiful, equally certain. Once it turns out to be unverifiable, the damage is not to that one page but to the credibility of every result. A page willing to say “here we do not know” is what makes every other page’s “we do know” mean something.
FAQ
What if I only know roughly what time it was?
You can compute it, but treat it as approximate: mark the time as approximate and accept that the result can shift with the error. If the uncertainty is measured in hours, treat the star as an indication rather than a definitive answer.
My family records have no time. What then?
Run the calculator for each plausible time and see whether the star stays stable; if different hours point to the same region of sky, the conclusion is more robust. If not, it is fine to keep the uncertainty honestly.
没有确切的时刻,我们宁可不发布星星
天空每小时转过约 15 度,所以"几点"决定了"哪颗星"。当一份记录只有日期、没有可靠时刻时,任何一颗被算出的星都可能是错的。我们的规则很简单:宁可不给,也不猜。
因为时刻直接决定结果:星空的旋转速度意味着几小时的误差足以让"最近的那颗星"换成另一颗甚至另一个星座。当时刻没有可靠来源时,我们只在页面上给出日期与地点,并明确写出"不计算星星"——这比一颗无法核验的星更诚实,也更有用。
为什么几小时会改变答案
地球每小时自转约 15 度,也就意味着天顶指向的天空区域每小时整体移动约 15 度。对"离天顶最近的星"这个问题来说,时间误差一小时,误差的天空范围已经相当于 30 个满月并排的宽度。若只有"夜里"或"凌晨"这样的大致范围,选出的星不过是众多可能中的一颗。
三档可信度,三种处理
在我们的案例库里,每条记录都标注时刻的可信度:有文献记载(recorded)、有来源但为大致时间(approximate)、或无可查时刻(unknown)。第一档正常计算;第二档计算但明确标注"大致";第三档只记录日期与地点,不发布星星。分档的意义在于:让读者一眼看出哪些结论可以引用,哪些只是线索。
真实的例子比原则更有说服力
案例库里就有这样的记录:一位登月第一人的逝世时刻在公开记录中未见明确记载,一只等候主人的著名犬只的确切离世时间同样无从查证,一只掌握手语的大猩猩只在报道中留下"某日"的日期。这些页面照常发布——日期、地点、生平、来源俱全,唯独没有星星。留白,本身就是内容的一部分。
"随便给一颗也不亏"错在哪里
如果一个机构在时刻不明时仍然给出星星,读者无法分辨:这颗星与有记录的案例看起来完全一样,同样漂亮、同样确定。一旦发现它其实无法核验,受损的不只是这一个页面,而是全部结果的可信度。反过来说,一个敢说"这里我们不知道"的页面,让其余每一个"我们知道"都更有分量。
FAQ
只知道大概几点,还能算吗?
可以算,但要当"大致"来处理:把时刻标为 approximate,并明白结果可能随误差改变。若误差以小时计,结果仅供参考,不宜当作唯一答案。
我自己的家事记录里没有时刻,怎么办?
用计算器把几个可能时段各算一次,看看星是否稳定;若不同时段指向同一片天区,结论会更稳。若差别很大,诚实地保留这个不确定性也是可以的。