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Almanac - Daily ephemerids
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Date: 17-08-2018
Day in year: 229
Julian Day: 2458347.417 (at local midnight)
Local Sidereal Time at local midnight: 22:00:59

Sun   Sun   (at noon)
R.A. 09:47.1        Dec. +13:22       
Distance 1.012 au
Apparent solar long. 144.47°
Equation of Time: -4.1 min
Morning Evening
Rise/Set 05:05 18:24
Civil Twillight 04:39 18:49
Nautical Twillight 04:08 19:20
Astronomical Twillight 03:36 19:52
Moon
Illuminated fraction: 0.36 at local midnight
R.A. -9.56 hours     Dec. -9°     Dist 385 x103km.
Rise: 11:15       Set: 22:36

Albedo Topographic
Moon Phase

The planets

Equinox: J2000.0 date        Geocentric positions for 00 TDT time
Planet R.A. Dec. Delta Elong Mag Phase Diameter Const Rise Set Transit Additional
J2000.0date [au] [au] [deg] [mag] [frac] [arcsec] [HH:MM] [HH:MM] [HH:MM] Information
Mercury 08:52:19.608:53:19.2+14:08:15+14:04:050.6900.371-12.72.30.1010Cnc04:1217:2810:50
Venus 12:33:23.212:34:19.1-05:11:57-05:17:550.6910.72845.9-4.30.4924Vir08:4320:2114:32
Mars 20:10:49.920:11:57.9-26:33:17-26:29:500.4041.388154.5-2.50.9723Cap17:1703:0022:06
Jupiter 14:51:38.114:52:39.1-15:29:50-15:34:155.4465.38781.3-2.00.9936Lib11:2722:1116:49 Central meridian
Satellites curves
Satellites midnight
Saturn 18:11:20.118:12:27.7-22:39:28-22:39:049.39910.064128.81.01.0018Sgr15:0601:0920:08 Saturn rings
Satellites midnight
Uranus 02:01:06.102:02:05.7+11:44:33+11:49:5119.48419.878-111.55.81.004Ari21:2410:3204:00
Neptune 23:07:46.723:08:45.0-06:40:15-06:34:0828.99729.941-158.47.81.002Aqr19:1806:5201:03

Sky maps

for 20:00 local time
for 22:00 local time
for 00:00 local time
for 02:00 local time
for 04:00 local time


Active Meteor showers: 5
South delta Aquarids
North delta Aquarids
Perseids
kappa Cygnids
North iota Aquarids


Help & how to use this page

Important comment: The data in this page (unless otherwise noted) is calculated for midnight of date. If for example, you are interested in data for the night of 2008 August 17/18, insert the date "18 08 2008". Note however, that in this example, the Moon/Sun rise/set will be calculated for the day of 2008 August 18!
Accuracy: The sky maps are plotted for the nearest whole local sidereal hour.
The rise/set times are accurate to about two minutes and are given relative to the local horizon. Note, that the actual rise/set times depends on the atmospheric conditions.