Close to sunset and sunrise bright stars like Sirius or even Canopus can be spotted with the naked eye as long as one knows the exact position in which to look. Historically, the zenith of naked-eye astronomy was the work of Tycho Brahe (1546â1601).
The egg sac, irregular in shape, about the size of a tennis ball, is often seen in the garden, suspended by silk threads. Spider bite in southern Africa: diagnosis and management: the diagnosis of spider bite, especially when the patient is unaware of having been bitten, can be difficult
Whether fertilized or not (that's a discussion for a different question), this yolk sac passes through a series of organs to become a shelled egg. Its first stop is an organ called the infindibulum, wherein that sticky membrane surrounding the yolk sac (called the chalazae) is deposited. This takes about 15 minutes. The next stop is an organ called the magnum, where the albumin, or egg white, is formed; this takes about 3 hours.