Everything You Need For 2025

The Nautical Almanac
The free online Nautical Almanac
The world's most complete source of free celestial navigation information

Everything you need for 2025

Almanacs

2025 Nautical Almanac -regular format

2025 Nautical Almanac- compact format

2025 Sun only -regular format

2025 Sun only -compact format

Increments & Corrections, Altitude Corrections & Polaris Q Corrections

Increments & Corrections for Sun, Planets, Aries, Moon (the "yellow pages")

Increments & Corrections for the Sun (on 2 pages)

ALTITUDE CORRECTION TABLES 10°--90°—SUN,STARS,PLANETS

TABLE 5- Correction to Tabulated Altitude for Minutes of Declination

Altitude Correction Tables for the Moon

Sight Reduction Tables

PUB. NO. 249 Epoch 2020
(download individual Latitudes or Volumes) (courtesy of Celestaire) (also known as Ho- 249)
PUB. NO. 249 Epoch 2025
(download individual Latitudes or Volumes) (courtesy of Celestaire) (also known as Ho- 249)

PUB. NO. 229 (download individual volumes)

Stars

Conversion of Arc to Time

Equation of Time curve (for the Sun)

Day of week, Week Number and Day of Year for 2025

ECLIPSES- Solar and Lunar- 2025

Planet Visibility Charts

Visibility of Planets & Local Mean Time of Meridian Passage- Planets and Sun- 2025

Courtesy of Mr. Andrew Bauer

Moon Phases for 2025 in graphic form (GMT/UTC time based)

WORLD MAP OF TIME ZONES

All material on this website, except Pub. 229 & Pub. 249, or where copyright
is imprinted, is the property of TheNauticalAlmanac.com

Copyright ©2025 TheNauticalAlmanac.com
You are free to copy and distribute, but not sell, any material on these
webpages provided attribution to the TheNauticalAlmanac.com is included.

...freely ye received, freely give...