The World's Most Complicated Watch - A celestial hint

After the pleasure of the ear with the hint on the striking mechanism how about lifting outr eyes to the sky.

The "Grand oeuvre " or Magnum Opus" as VC calls it will feature a star chart representing the consetallins visible in the night sky from the owner's home city , around its edge are inscribed the months of the year.

The sidereal or star time can be read from the corresponding outer 24-hour scale by choosing a star at the appropriate time and tracking that same star at it rotates, wherever the chosen star is found in relation to the 24-hour scale indicates to the user the current sidereal time.

Sidereal time is the sidereal day which is the interval between two consecutive upper transits of the vernal point in the plane of the meridian. Since in practice this can be measured as the earth's rotation with respect to distant celestial objects. The sidereal day is 23 hours, 56 minutes and 41 seconds. The sidereal year contains one more day than the solar year. With the stars used as a point of reference, sidereal time enables a more regular scale of time than that afforded by using the sun as a reference. Naturally the sidereal sky chart is mainly used during hours of darkness when the star constellations are visible and therefore the dominant indications on the present watch are for the hours between 8pm in the evening and 4 am in the morning. Concentric around the outer border is the sector scale for the retrograde date of the perpetual calendar, this function self-corrects for the appropriate number of days in each month including leap-years, at the end of each month the hand instantaneously jumps back to its start point. The World's Most Complicated Watch - A celestial hint
Awesome. Between your first hint and this one, along with the the
06/09/2015 - 14:44

Watchtime article with the calendar and financial calendar features, a lot has already been revealed.

And yet...more to come.

The dude who commissioned this is truly a re-incarnation of Ward and Packard. Do you think he is also a customer for PP's chiming grand rapper? It would be interesting to see them side by side, though the VC would be more elegant and sophisticated.

A celestial hint
06/09/2015 - 17:52

Cool, assuming the owner's home location is at the axis of the hand, it should be in the northern hemisphere, east of Arcturus, but would also need to know the time to calculate the observer's position.  Anyone with knowledge of astronomy out there?

I was thinking this exact same thing
06/09/2015 - 18:33

I was wishing I had enough acumen to determine the owners location.  I was thinking through exactly this.  However, it appears that we lack information.

Re: A celestial hint
06/09/2015 - 18:49

The axis of the pointer looks like it is going through Polaris. One can see Ursa major below and to the left.

This also looks like a spring/summer sky (no Orion, for one thing.) The alignment looks like July, in fact.

Given the position of Polaris, I would think the latitude is north of 45 degrees.

It also looks like the Big Dipper will be circum-polar in this planisphere. This would mean a latitude of about 50-60 degrees north.

Major cities at that latitude include Edinborough, Copenhagen and Moscow. (Edmonton is up that way too, Dean laugh ) Paris is a little bit south at 48 dgrees.

I vote Moscow!

JB

By Jove!
06/09/2015 - 20:22

Surely not for Vlad?

June 10, 3:30pm Moscow time
06/09/2015 - 20:56

30pm Moscow time

 

Here is the sky view from Moscow, calculated from the day and time shown above.  Key in on the brightest star on the left above the celestial equator, Arcturus in the constellation Bootes, to identify the other stars and constellations.

30pm Moscow time

More celestial hints
06/10/2015 - 04:49

Sorry, orion is there at lower right. It straddles the celestial equator.

With a planisphere you set the time to a given date and you automatically have the sky.

The pointer says the 10th day. So you can see this sky on the 10th of June at 1030 or July 10th at 0830. (local sidereal time) which corresponds approximately to 1530 on June 10th or 1330 on July 10th local solar time.

You just align the day of the month, divided in increments of 5 days with the local sidereal time et voila.

 A celestial hint

The above labelled planisphere corresponds to 1530 Moscow solar time.

Why did I even bother attending University? With Tick-Talk and JB and their
06/10/2015 - 06:48

knowledge of physics, astronomy, celestial mechanics, and everything else in general, I am learning more here than I ever did studying four years in the US. :-) 

JB, I did not know you had a home in Moscow. :-)

Great investigation! :-)
06/10/2015 - 10:08

I hope it means what I'll be able to check availiability of this upcoming masterpiece at local boutique angel laugh

 

 

Or just maybe...
06/10/2015 - 16:03

You can pick up the Montblanc or Jaeger Lecoultre version, called the "Grande Œuf", which is no doubt in the offing.

Re: Or just maybe...
06/10/2015 - 16:26

LOL!! or should that be "oeuffing"?!

Wow... that is...
06/10/2015 - 19:23

a really œful pun.  I almost reported this to the moderator.