Historical almanacs are typically preserved online by academic, governmental, and open-source archives:
for the Sun, Moon, and navigational planets for every whole hour. : It lists the positions of 57 selected stars relative to the "First Point of Aries". Interpolation nautical almanac 1988 pdf
Ensure the numbers in the minutes and seconds columns are crisp. A blurry "3" can easily be mistaken for an "8," throwing your calculated position off by several nautical miles. and open-source archives: for the Sun