USNO Data for 2017 Solar Eclipse for
Gayle H. Riggsbee Observatory Clear Sky Chart


Please read website Terms of Use before using this page

from: http://aa.usno.navy.mil/data/docs/Eclipse2017.php

Solar Eclipse Computer

U.S. Naval Observatory
Astronomical Applications Department

Solar Eclipse of 2017 Aug. 21

Sun in Partial Eclipse at this Location

Gayle H. Riggsbee Observatory

August 21, 2017   Universal Time and Local Time (UT1)Delta T: 69.4s
PhenomenonTime (UT1)Sun's Altitude (°)Sun's Azimuth (°)Position Angle (°)Vertex Angle (°)
Eclipse Begins17:13:32.8(UT) 13:13:32.8(Local)67.0172.7292.7299.0
Maximum Eclipse18:42:56.5(UT) 14:42:56.5(Local)61.1222.4
Eclipse Ends20:05:42.7(UT) 16:05:42.7(Local)47.0247.8116.465.4


Duration2h 52m 09.9s
Magnitude0.988
Obscuration99.0%
< Local times are accurate only if the timezone for the Gayle H. Riggsbee Observatory clear sky chart is really UT-4.) UT times are accurate only if the latitude/longitude of the chart for Gayle H. Riggsbee Observatory is accurate. Check the road map.>


Forecast History for the Gayle H. Riggsbee Observatory clear sky chart for late August

Extracted from the Gayle H. Riggsbee Observatory clear sky chart climate/history page.
With the help of sponsors.

Cloud Cover

Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
AugustOccurrence of each Forecastdata points
16th to endDay
13%425%7%45%6%7%9%32%
2157

Transparency

Color Meanings:
Too cloudy to forecast Poor Below Average Average Above average Transparent
AugustOccurrence of each Forecastdata points
16th to endDay
43%10%14%19%10%1
2157

DISCLAIMER: This weather data is based from past forecast records, not from sky observations. So it's possible that it is not an accurate indication of weather for the eclipse. If you miss seeing the eclipse because you took a climate/history page for a clear sky chart, or the weather data on this page, too literally, your only recourse is to complain to me in email. Reminder: by using this website you agree to not sue me for any reason.


Gayle H. Riggsbee Observatory Clear Sky Chart | All charts along totality | Charts Home

Copyright 2017 A. Danko