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SIGHT REDUCTION PAGE

Today's Date and GMT:
October 20, 2019    14:49:12

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):16:38:11

Sunrise (GMT): 11:10:21

Sunset (GMT): 22:05:25

GHA Aries: W 251 04.4'

Equation of Time: 15min13sec

More Results

GHA
Declination
RA
LHA
S.D.
Zn
Hc
Ho

Meridian

crossing

     SUN
46 06.1'
S 10 22.3'
13h39m53s
332 45.8'
16.1 '
147.7
32 39.1'
-0 17.6' 16:38:09
   MOON
144 12.7'
N 22 53.7'
07h07m27s
70 52.4'
15.7'
276.2
28 54.3'
0 39.7' 10:05:42
  VENUS
28 40.8'
S 16 05.5'
14h49m34s
315 20.5'
5.2"
134.3
19 22.4'
-0 33.7' 17:47:49
   MARS
60 58.1'
S 3 22.9'
12h40m25s
347 37.8'
1.8"
162.7
44 01.0'
-0 33.7' 15:38:40
JUPITER
350 34.0'
S 22 55.9'
17h22m02s
277 13.7'
17.1"
112
-9 45.3'
-0 33.8' 20:20:17
SATURN
325 04.5'
S 22 28.3'
19h03m60s
251 44.2'
8.2"
96.3
-28 00.7'
-0 33.8'
22:02:15
Acamar
206 19.2'
S 40 13.6'
02h59m01s
132 58.9'
0"
255.6
-54 47.3'
-0 33.8'
05:57:16

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 = 293
Julian Date JD = 2458777.1175
JD Ephemeris= 2458777.1185686
Sun-Earth distance = 1 AU = 148968897 km = 92564981 mi
Earth-Moon distance = 379470 km = 235792 mi
Earth-Venus distance = 1.61 AU = 240196218 km = 149251010 mi
Earth-Mars distance = 2.58 AU = 386355062 km = 240069905 mi
Earth-Jupiter distance = 5.77 AU = 863384066 km = 536481986 mi
Earth-Saturn distance = 10.2 AU = 1526311093 km = 948405743 mi
Day = 20.6175
UT = 14.82hours
deltaT=92.32333seconds
TD = 14.845645369444
hours JD = 2458777.1175
JDE= 2458777.1185686
t corrector = 0.058931695883021
corrected JDE= 2458777.0596369
DOY = 293
T (from JD) = 0.19800458590007
T (from JDE = 0.19800461515556
tau (from JDE) = 0.019800461515556
corrected taue = 0.019800300169366
SHA theta = 251.07820021501
nutation in longitude delta Rho = -17.862091101165
nutation of the ecliptic = -1.6099879614183 obliquity of the ecliptic = 23.436269004701
earth l = 26.922670499439
earth r = 0.99579471134371
earth b = 3.6001863962536E-5
222.99435886334
Lnot=208.78504364294
epsilon= 23.436269004701
alpha=204.97217450005 nutation in longitude=-17.862091101165
equation of time E=00:15:13