Amateur Astronomy – Sky This Week June 22 To 28, 2008
Friday, November 6th, 2009 at
1:44 pm
Astronomical objects that may be viewed up in the sky with astronomical telescopes or binoculars. This weeks list of objects to see in the sky location charts for Mars, Saturn, Jupiter, comets C20...
US $9.99
Julian Date Calculator 1.0
Category: Utilities
Price: Free (iTunes)
Description:
The Julian Date Calculator gives the user a simple and quick way to convert between Coordinated Universal Time (UTC) in the Gregorian Calendar to the Julian Date as well as a selection of additional epochs and time systems, including Modified Julian Date, Dublin Julian Day, Lilian Day Number and Unix Time.
The Julian date (JD) is the number of days and fractions of a day since noon January 1, 4713 BC at Greenwich. The Modified Julian Date (MJD) has an offset of 2,400,000.5 days from the Julian Date and hence starts at midnight November 17, 1858. The Julian Date is often used for scientific time measurement by the astronomy community and was introduced to provide a single system of dates that could be used when working with different calendars.
Julian Date Calculator
Today's astronomy pic: the eerie blue glow of reflecting dust clouds in Orion
An airport full of amateur flyers.
The Space Shuttle Discovery is ready to blast into space at 06:21 Eastern …