Here are the positions of the sun and moon on the day of the battle. The weather was clear.
U.S. Naval Observatory
Astronomical Applications Department
Sun and Moon Data for One Day
The following information is provided for Dalton, Whitfield County, Georgia (longitude W85.0, latitude N34.8):
|Begin civil twilight||5:08 a.m.|
|Sun transit||12:36 p.m.|
|End civil twilight||8:04 p.m.|
|Moonrise||1:16 p.m. on preceding day|
|Moon transit||8:22 p.m.|
|Moonset||2:28 a.m. on following day|
Phase of the Moon on 15 May: waxing gibbous with 68% of the Moon’s visible disk illuminated. First quarter Moon on 13 May 1864 at 1:19 p.m. Eastern Standard Time.