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SIGHT REDUCTION PAGE

Today's Date and GMT:
April 23, 2019    12:38:47

DATE:

GMT: : :
Nav Body:
Assumed Lat: '
Assumed Lon: '
Sextant altitude Hs: '

Height of observer:   Air temp:
Water temp:
Barometric P (PSI or mbs):

Local Noon (GMT):16:51:43

Sunrise (GMT): 10:02:23

Sunset (GMT): 23:41:47

GHA Aries: W 40 57.8'

Equation of Time: 1min37sec

More Results

GHA
Declination
RA
LHA
S.D.
Zn
Hc
Ho

Meridian

crossing

     SUN
10 06.0'
N 12 32.2'
02h03m27s
296 45.7'
15.9 '
98.2
28 16.6'
-0 17.8' 16:51:44
   MOON
136 45.3'
S 21 05.7'
17h36m50s
63 25.0'
15.4'
236.8
4 25.3'
0 38.0' 08:25:07
  VENUS
37 10.1'
S 0 04.3'
00h15m11s
323 49.8'
5.9"
132.1
37 20.8'
-0 33.7' 15:03:28
   MARS
327 02.1'
N 23 39.8'
04h55m43s
253 41.8'
2.1"
61.8
4 03.8'
-0 33.7' 19:43:59
JUPITER
137 21.9'
S 22 40.3'
17h34m24s
64 01.6'
21.3"
236.2
2 52.8'
-0 33.8' 08:22:40
SATURN
108 52.4'
S 21 29.0'
19h28m22s
35 32.1'
8.5"
214.9
19 11.0'
-0 33.8'
10:16:38
Acamar
356 12.9'
S 40 13.7'
02h58m60s
282 52.6'
0"
128.8
-17 17.8'
-0 33.8'
17:47:16

SIGHT REDUCTIONS

The results above correspond to data found in the Nautical Almanac with an accuracy of   ± 0.1 minute.
Fill in all boxes in the Data Form at left. If you have more than 2 sight reductions, you can calculate a fix by selecting the 2 sight reductions you want to use. All calcuations on this page (and the popups) are based on the data submitted in the form.

Program written by M. Smith based on algorithms from "Astronomical Algorithms", by Jean Meeus

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More Astronomical Info

Day of Year = 113
Julian Date JD = 2458597.0269329
JD Ephemeris= 2458597.0280014
Sun-Earth distance = 1.01 AU = 150405857 km = 93457867 mi
Earth-Moon distance = 388576 km = 241450 mi
Earth-Venus distance = 1.41 AU = 210239158 km = 130636556 mi
Earth-Mars distance = 2.19 AU = 327244654 km = 203340401 mi
Earth-Jupiter distance = 4.62 AU = 691881137 km = 429915007 mi
Earth-Saturn distance = 9.79 AU = 1464304841 km = 909876845 mi
Day = 23.52693287037
UT = 12.646388888889hours
deltaT=92.32333seconds
TD = 12.672034258333
hours JD = 2458597.0269329
JDE= 2458597.0280014
t corrector = 0.056526982523238
corrected JDE= 2458596.9714744
DOY = 113
T (from JD) = 0.19307397489036
T (from JDE = 0.19307400414586
tau (from JDE) = 0.019307400414586
corrected taue = 0.019307245652142
SHA theta = 40.968239602633
nutation in longitude delta Rho = -17.394883377415
nutation of the ecliptic = -3.1526839424249 obliquity of the ecliptic = 23.435904596558
earth l = 213.08841281243
earth r = 1.0054001868554
earth b = -0.00010390792480159
222.98751473887
Lnot=31.279250987788
epsilon= 23.435904596558
alpha=30.862927051866 nutation in longitude=-17.394883377415
equation of time E=00:01:37