User`s guide

Frequently Asked Questions 193
"Regional Settings" control panel and
switch to the 24-hour clock. After
restarting Starry Night it should be using
the new time format. On the Macintosh
you can reset the time format from the
Date and Time System Preferences. After
restarting Starry Night it should be using
the new time format.
Can I get Starry Night to show dates in
the European format?
Yes . On Windows, Starry Night looks to
the Windows registry to determine the
order in which to show dates. If it can't
find a registry entry for regional date
settings then it defaults to the US month,
day, year. Unfortunately UK Windows
does not automatically place the date
format in the registry where Starry Night
expects to see it. To work around this you
should open the "Regional Settings"
control panel, switch the date format to
something other than the current setting,
click OK, then reopen the "Regional
Settings" control panel and switch to the
UK day-month-year order. After restarting
Starry Night it should be using the new
date format. On the Macintosh you can
reset the date format from the Date and
Time System Preferences. After restarting
Starry Night it should be using the new
date format.
When I view from off the Earth, the
time reads "UT". What does this mean?
UT is short for "Universal Time". This is
the same thing as Greenwich Mean Time,
and is the time in London, England (not
accounting for daylight saving time).
Universal Time is used as a standard
reference time for astronomical events by
astronomers around the world. When you
are viewing from a location off the Earth,
your old "time zone" does not really apply,
so Starry Night uses Universal Time.
Does Starry Night use the Gregorian or
Julian calendar for old dates?
Starry Night uses the old Julian calendar
for all dates before Oct. 15, 1582, and the
Gregorian calendar for all dates more
recent than this. The dates Oct. 5-Oct. 14,
1582 do not exist in Starry Night, to
account for the ten days which were
skipped when the new calendar was
introduced.
Viewing Location
I’ve tried changing my home location,
but everytime I restart the program, it
reverts to the old location. How do I
change my home location?
You have to change your home location by
selecting Set Home Location from the
File menu (Windows) or the
Starry Night menu (Macintosh) and
changing your location from this window.
Any location changes that you make
elsewhere in Starry Night only affect your
current viewing location, not your home
location.
My city isn’t in the list of cities in Starry
Night’s Viewing Location dialog box,
and I don’t know my latitude and
longitude. Where can I find this
information?
Just click the Lookup Lat/Long On
Internet button in the Latitude/
Longitude tab of the Viewing Location