The location of the Galactic Center was first found by Harlow Shapley with
A) radio emissions from Sagittarius A.
B) RR Lyrae variables in the globular clusters.
C) Cepheids of population I in the spiral arms.
D) infrared observations of the heat from its accretion disk around the black hole.
E) planetary nebulae in the open clusters.
Question 2
Which of these variable stars would be classified as a Cepheid?
A) a G giant with a period of 14 hours
B) a B supergiant with a period of 0.14 days
C) a K giant with a period of 14 days
D) an F giant with a period of 14 years
E) an M supergiant with a period of 140 days
(A) Figure illustrating the location and appearance of a peptic ulcer in both the stomach and the du
Renal transplant. A transplanted kidney is placed within the pelvic cavity below the location of the
Location of the heart in the chest cavity.
An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ...
A whistle stop used to find top dead center. Remove the spark plug and install the whistle stop, ...
Location of brain lesions in Alzheimer disease. Plaques are concentrated most heavily in the amygdal