On March 4, 2005, as seen from Yerkes Observaotyr, asteroid 1998WT should have been at RA Dec UT 02:45:00 07:26:34.75 +00:46:10.3 02:50:00 07:26:29.96 +00:46:04.9 What are the (RA, Dec) coordinates of star A in the Yerkes image below? Can you provide them both in decimal degrees, and in HH:MM:SS.s format? RA = 07:26:37.6 = 111.6568 degrees Dec = +00:46:26.7 = 0.7742 degrees What is the distance between star A and the asteroid? Express this distance in arcseconds. about 45 arcseconds The brightness of stars (as we will see later) is often expressed as a "magnitude". What is the R-band magnitude of star A? R = 12.9 In the Aladin image, which way is North? (Hint: Declination increases as one goes to the North) In the Aladin image, which way is East? (Hint: Right Ascension increases as one goes to the East) North is up, East is to the left (unlike maps of Earth)