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SIGHT REDUCTION PAGE

Today's Date and GMT:
March 28, 2020    15:18:04

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):16:58:15

Sunrise (GMT): 10:42:27

Sunset (GMT): 23:14:45

GHA Aries: W 56 00.8'

Equation of Time: -4min54sec

More Results

GHA
Declination
RA
LHA
S.D.
Zn
Hc
Ho

Meridian

crossing

     SUN
48 17.5'
N 3 20.0'
00h30m53s
334 57.2'
16 '
142.6
45 57.6'
-0 17.7' 16:58:15
   MOON
2 47.8'
N 15 57.4'
03h32m52s
289 27.5'
14.9'
90.3
24 57.9'
0 35.7' 20:00:14
  VENUS
4 55.3'
N 22 05.6'
03h24m22s
291 35.0'
12.3"
86.1
30 16.7'
-0 33.6' 19:51:44
   MARS
115 13.1'
S 21 20.9'
20h03m11s
41 52.8'
3.1"
220.4
16 22.9'
-0 33.7' 12:30:32
JUPITER
120 09.2'
S 21 22.1'
19h43m27s
46 48.9'
18.3"
224.4
13 51.7'
-0 33.8' 12:10:48
SATURN
113 20.6'
S 20 06.3'
20h10m41s
40 00.3'
8"
219.5
18 21.1'
-0 33.8'
12:38:03
Acamar
11 15.4'
S 40 13.5'
02h59m02s
297 55.1'
0"
136.9
-8 59.6'
-0 33.8'
19:26:23

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 = 88
Julian Date JD = 2458937.1375463
JD Ephemeris= 2458937.1386321
Sun-Earth distance = 1 AU = 149348071 km = 92800589 mi
Earth-Moon distance = 401023 km = 249184 mi
Earth-Venus distance = 0.68 AU = 101734432 km = 63214845 mi
Earth-Mars distance = 1.49 AU = 222518627 km = 138266665 mi
Earth-Jupiter distance = 5.37 AU = 803855138 km = 499492425 mi
Earth-Saturn distance = 10.36 AU = 1549519233 km = 962826613 mi
Day = 28.637546296296
UT = 15.301111111111hours
deltaT=93.812seconds
TD = 15.32717
hours JD = 2458937.1375463
JDE= 2458937.1386321
t corrector = 0.059816816989283
corrected JDE= 2458937.0788153
DOY = 88
T (from JD) = 0.20238569599716
T (from JDE = 0.20238572572439
tau (from JDE) = 0.020238572572439
corrected taue = 0.02023840880292
SHA theta = 56.018204663415
nutation in longitude delta Rho = -17.688578754458
nutation of the ecliptic = 0.016284196414138 obliquity of the ecliptic = 23.436663774253
earth l = 188.41733723475
earth r = 0.99832932922423
earth b = 7.7577237607593E-6
223.00044036704
Lnot=6.5083973533056
epsilon= 23.436663774253
alpha=7.7218830107942 nutation in longitude=-17.688578754458
equation of time E=00:04:54