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SIGHT REDUCTION PAGE

Today's Date and GMT:
December 8, 2019    3:30:47

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):16:45:14

Sunrise (GMT): 12:05:58

Sunset (GMT): 21:24:19

GHA Aries: W 129 18.1'

Equation of Time: 8min25sec

More Results

GHA
Declination
RA
LHA
S.D.
Zn
Hc
Ho

Meridian

crossing

     SUN
234 47.8'
S 22 40.3'
16h58m01s
161 27.5'
16.2 '
314.3
-65 48.3'
-0 17.5' 16:44:56
   MOON
101 32.9'
N 6 08.1'
01h51m01s
28 12.6'
15'
223.4
46 51.6'
0 36.1' 01:37:56
  VENUS
202 47.8'
S 24 13.8'
19h06m01s
129 27.5'
5.9"
275.9
-44 56.5'
-0 33.7' 18:52:57
   MARS
269 07.3'
S 15 01.3'
14h40m43s
195 47.0'
2"
32.2
-60 28.0'
-0 33.7' 14:27:39
JUPITER
217 59.2'
S 23 18.2'
18h05m15s
144 38.9'
15.9"
290.2
-55 30.6'
-0 33.8' 17:52:11
SATURN
199 02.6'
S 22 02.9'
19h21m02s
125 42.3'
7.7"
275.6
-40 51.9'
-0 33.8'
19:07:57
Acamar
84 32.8'
S 40 13.5'
02h59m01s
11 12.5'
0"
188.6
7 56.7'
-0 33.8'
02:45:57

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 = 342
Julian Date JD = 2458825.6463773
JD Ephemeris= 2458825.6474459
Sun-Earth distance = 0.99 AU = 147365387 km = 91568606 mi
Earth-Moon distance = 399173 km = 248034 mi
Earth-Venus distance = 1.4 AU = 210006035 km = 130491700 mi
Earth-Mars distance = 2.34 AU = 350739652 km = 217939516 mi
Earth-Jupiter distance = 6.18 AU = 924360879 km = 574371221 mi
Earth-Saturn distance = 10.85 AU = 1622849735 km = 1008392075 mi
Day = 8.1463773148148
UT = 3.5130555555556hours
deltaT=92.32333seconds
TD = 3.538700925
hours JD = 2458825.6463773
JDE= 2458825.6474459
t corrector = 0.062656495777977
corrected JDE= 2458825.5847894
DOY = 342
T (from JD) = 0.19933323414962
T (from JDE = 0.19933326340512
tau (from JDE) = 0.019933326340512
corrected taue = 0.019933154796376
SHA theta = 129.30639380589
nutation in longitude delta Rho = -17.82975863124
nutation of the ecliptic = -1.8964683307356 obliquity of the ecliptic = 23.43617214885
earth l = 75.73887541076
earth r = 0.98507591798873
earth b = 0.00014859431650769
222.99620317225
Lnot=256.61740361745
epsilon= 23.43617214885
alpha=254.5041647816 nutation in longitude=-17.82975863124
equation of time E=00:08:25