What Condition Is Necessary on Earth to See Eclipses of Stars

question 193

Multiple Choice

What condition is necessary on Earth to see eclipses of stars in binary star systems?

• A) The stars must have very similar surface temperatures, whatever the inclination of their orbital plane to the line of sight, to see a significant eclipse.
• B) The line of sight from Earth to the star system must be very close to perpendicular to the orbital plane of the stars.
• C) The line of sight from Earth to the star system must be in or very close to the orbital plane of the stars.
• D) One of the stars must be much bigger than the other so that it can hide its smaller companion when the orbital plane is at a large angle to the line of sight.

---

Definitions:

Insurance Companies

Businesses that provide coverage by compensating for losses, damage, illness, or death in exchange for premium payments.

Drug Treatment

The use of pharmaceuticals to manage or cure a disease or condition, including psychiatric medications for mental health issues.

Employee Assistance Programs

Services provided by employers to help employees deal with personal problems that might adversely impact their work performance, health, and well-being.

Mental Health Services

A range of services designed to promote mental health, prevent mental disorders, and provide treatment and rehabilitation for individuals with mental illness.