HD 173780 [SEP] constellation
HD 173780
HD 173780 is a 5th magnitude star in the constellation Lyra, approximately 250 light years away from Earth. It is an orange giant star of the spectral type K3III, meaning it has a surface temperature of 3,500 to 5,000 kelvins. It is much bigger and brighter than our Sun, yet cooler.
Battery D was reinforced to its authorized wartime strength.
Detachments from Btry A formed Btry 80-X in December 1941; a second detachment helped form the 804th CA (HD) Btry (Sep). Btry F at Sand Is. was designated the 807th CA (HD) Btry (Sep), while a second detachment helped organize the 715th CA (HD) Btry (Sep) 10-21-42. During World War II, various changes were made in the makeup of the 55th CA. The 55th CA (