Indiana Astronomical Society
Search for Messier Objects
Search for Messier Objects that are visible 30 degrees above the local horizon at the date and time you specify.
Enter your latitude and logitude in decimal degrees. For example, the latitude for Indianapolis is 39° 46' and should be entered as 39.7666. The longitude for Indianapolis is 86° 10' west and should be entered as -86.1666. All western latitudes are entered as negative numbers and all eastern latitudes are entered as postivie numbers. The current local time and date are pre-filled for you but you should change the values to your expected observation time. Hour entered should be in 24-hour format (i.e 6:00 AM is entered as 6 in the hour field and 6:00 PM is entered as 18 in the hour field).