What condition is necessary in order for a binary star system to appear as an eclipsing binary?
a. The line of sight from the Earth to the binary star must be close to the perpendicular to the star system’s orbital plane.
b. The binary star system must be close to the ecliptic plane in the sky in order for eclipses to be seen from the Earth.
c. The line of sight from the Earth to the binary star must be in or very close to the orbital plane of the binary star.
The answer is c.
Binary Star – Indy 500*
|
|
Algol binary star Photo Mugs Algol double star. Artwork of the stars in theeclipsing binary star system Algol ( Beta Persei). This double star comprises a coolorange star and a smaller, brighter, hotter whitestar. The stars orbit each other in the same planeas seen from Earth. This leads to regular andperiodical dips in the brightness of the system.When the orange star passes in front of the whiteone, the star dims considerab… |
|
|
Alien planet Photo Mugs Alien planet. Artwork of an extrasolar gasgiant planet and two of its moons. The planet andits moons orbit a binary star system (upper left).Binary star system are very common, and maybe halfof all stars are part of a binary system….. |
|
|
Artwork binary star system containing black hole Photo Mugs Artists impression of a binary star systemconsisting of a black hole (foreground) and a bluegiant star (background). A stream of gas is beingpulled from the atmosphere of the blue giant bythe immense gravitational field of its companion.As the gas spirals down into the black hole itforms a flat accretion disc which heats up andemits X-rays (bright white region at centre). Forthis reason, this type… |
|
|
Star Wars Episode III: Revenge of the Sith – Original Motion Picture Soundtrack $5.99 All products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed…. |
|
|
Tranceport $10.33 No Description Available.Genre: Dance, DJMedia Format: Compact DiskRating: Release Date: 3-NOV-1998… |
|
|
Masters Of The Universe [Explicit] $8.99 … |
|
|
Star Trek – The Next Generation, Episode 16: 11001001 [VHS] $12.57 The holodeck needs a bit of maintenance, so the Enterprise checks in to Starbase 74 to allow some Bynars (beings who can speak in binary code and who sound like fax machines) to update the programming. While Riker doesn’t trust the Bynars, he forgets all of his complaints when he tries out the holodeck. Setting himself up as a trombone player in a 1958 Bourbon Street bar, he meets up with a sultr… |
|
|
The Great Year $15.00 Studio: Victor Multimedia-05 Release Date: 06/20/2006… |
|
|
RPG $14.95 RPG is a documentary film about that most maligned and misunderstood of leisure pastimes, fantasy role playing games. RPG is the acronym for Role Playing Game, but non players are more cognizant of the name Dungeons and Dragons ™, a single game title which has come to represent to the outside world the face of all other RPGs. While “D&D” is still, arguably, the most popular RPG out there, thi… |
|
|
Perplexus Maze Game by PlaSmart, Inc. $14.94 Perplexus is a can’t-put-down challenge!! Flip, Twist and spin the transparent sphere to move the ball along the numbered path working with and against gravity. Be careful, faster than the blink of an eye your ball can fall off course and you’ll have to begin again. Fun for the whole family with over 100 barriers to master. Recommended Ages: 6 years & up… |