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SIGHT REDUCTION PAGE

Today's Date and GMT:
August 17, 2019    15:43:12

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):16:57:28

Sunrise (GMT): 10:04:34

Sunset (GMT): 23:49:40

GHA Aries: W 201 31.8'

Equation of Time: -4min5sec

More Results

GHA
Declination
RA
LHA
S.D.
Zn
Hc
Ho

Meridian

crossing

     SUN
54 46.6'
N 13 22.1'
09h47m01s
341 26.3'
15.8 '
144.5
57 48.6'
-0 17.9' 16:57:27
   MOON
211 01.9'
S 8 59.5'
23h21m59s
137 41.6'
14.7'
298.7
-40 44.2'
0 34.9' 06:32:25
  VENUS
53 24.5'
N 14 18.1'
09h52m29s
340 04.2'
4.8"
141.4
58 00.9'
-0 33.7' 17:02:55
   MARS
49 22.8'
N 12 38.9'
10h08m36s
336 02.5'
1.8"
136.8
54 36.3'
-0 33.7' 17:19:01
JUPITER
308 14.0'
S 22 09.6'
16h53m11s
234 53.7'
20.3"
85
-40 28.9'
-0 33.8' 00:03:37
SATURN
275 36.5'
S 22 22.3'
19h03m41s
202 16.2'
9"
51.7
-63 27.6'
-0 33.8'
02:14:07
Acamar
156 46.7'
S 40 13.6'
02h59m00s
83 26.4'
0"
234.4
-21 05.0'
-0 33.8'
10:09:26

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 = 229
Julian Date JD = 2458713.155
JD Ephemeris= 2458713.1560686
Sun-Earth distance = 1.01 AU = 151460952 km = 94113472 mi
Earth-Moon distance = 406226 km = 252417 mi
Earth-Venus distance = 1.73 AU = 258819244 km = 160822822 mi
Earth-Mars distance = 2.67 AU = 399604219 km = 248302550 mi
Earth-Jupiter distance = 4.84 AU = 724336383 km = 450081762 mi
Earth-Saturn distance = 9.25 AU = 1383322421 km = 859556702 mi
Day = 17.655
UT = 15.72hours
deltaT=92.32333seconds
TD = 15.745645369444
hours JD = 2458713.155
JDE= 2458713.1560686
t corrector = 0.053409084388774
corrected JDE= 2458713.1026595
DOY = 229
T (from JD) = 0.19625338809034
T (from JDE = 0.19625341734584
tau (from JDE) = 0.019625341734584
corrected taue = 0.019625195508481
SHA theta = 201.53373014601
nutation in longitude delta Rho = -15.369195590506
nutation of the ecliptic = -2.0746163042971 obliquity of the ecliptic = 23.436162714151
earth l = 324.46487777259
earth r = 1.012453052747
earth b = 0.00024522367873215
222.99192802734
Lnot=145.74057416305
epsilon= 23.436162714151
alpha=146.7535524044 nutation in longitude=-15.369195590506
equation of time E=00:04:05