A star that suddenly becomes several magnitudes brighter and then gradually fades is a __________.
A
double star
B
variable star
C
nova
D
nebula
E
İlgili Sorular
INTERNATIONAL ONLY A power-driven vessel pushing ahead or towing alongside will show sidelights, a s...INLAND ONLY A power-driven vessel intends to overtake another power-driven vessel on the overtaken v...Inflatable life rafts on vessels on an international voyage must be able to carry at least _________...A semisubmersible displacing 17,600 long tons has an LCG 3.2 feet forward of amidships. Bulk, weighi...The LWT anchor has two angular positions for the flukes. These are ______________________.