<p>You can calculate this using the program "KAIROS", See here: <a href="http://www.raymondm.co.uk/" rel="nofollow">http://www.raymondm.co.uk/</a>
It will let you play through the variables: Is this a Julian or a Gregorian date? Is it using true or mean positions? And so forth.</p>

CC BY-SA 3.0
2015-07-13T23:21:50.400Z
2015-07-13T23:21:50.400Z
fdb
<p>I hope this is the right place to ask this question, and I apologise if not.</p>

<p>I've come across a date written in an old book, but it is written using what seems to be a lunar/zodiac system.
Below is a picture of the date (ignore the text above it):</p>

<p><img src="https://i.sstatic.net/eW4gz.jpg" alt="enter image description here"></p>

<p>I'm trying to work out what this date would have been in our modern calendar, but I can't seem to find any tables or almanacs that go back that far.</p>

<p>Are there any publicly available tables that do go back to 1587? If not, how exactly could I go about calculating the answer for myself? I am a mathematician, so a bit of wacky maths should be within my capabilities.
This is the answer I'm probably expecting from this site: some kind of program/algorithm/formula to be able to work out on what date the moon would have been in Taurus in</p>

<p>If not, any ideas as to where best for me to ask/look next?</p>

<the-moon>
Historical astronomical lunar tables
Tim
# Historical astronomical lunar tables

(Asked by: username_0 on 2015-07-13)

I hope this is the right place to ask this question, and I apologise if not.

I've come across a date written in an old book, but it is written using what seems to be a lunar/zodiac system.
Below is a picture of the date (ignore the text above it):

![enter image description here](https://i.sstatic.net/eW4gz.jpg)

I'm trying to work out what this date would have been in our modern calendar, but I can't seem to find any tables or almanacs that go back that far.

Are there any publicly available tables that do go back to 1587? If not, how exactly could I go about calculating the answer for myself? I am a mathematician, so a bit of wacky maths should be within my capabilities.
This is the answer I'm probably expecting from this site: some kind of program/algorithm/formula to be able to work out on what date the moon would have been in Taurus in

If not, any ideas as to where best for me to ask/look next?

**Tags:** the-moon

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## 1 answers

### Answer by username_1 on 2015-07-13. Score: 2

You can calculate this using the program "KAIROS", See here: <http://www.raymondm.co.uk/>
It will let you play through the variables: Is this a Julian or a Gregorian date? Is it using true or mean positions? And so forth.


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