Final answer:
The formula to calculate for Oblique Meridian is M = 15SGMT + HA, where M is the Oblique Meridian, SGMT is the Standard Meridian of the observer's location, and HA is the Hour Angle of the celestial body.
Step-by-step explanation:
The formula to calculate for Oblique Meridian is M = 15SGMT + HA, where M is the Oblique Meridian, SGMT is the Standard Meridian of the observer's location, and HA is the Hour Angle of the celestial body.
For example, if the Standard Meridian is 75° West and the Hour Angle is -30°, the calculation would be M = 15(75) + (-30) = 1125 - 30 = 1095.
Therefore, the Oblique Meridian would be 1095°.