NGC 2626

NGC 2626 is a reflection nebula, emission nebula, and absorption nebula in the constellation Vela. It is located about 3,200 light-years from Earth. The nebula is mostly illuminated by the B1 star CD-40 4432 and ionized by the O8 quadruple star system HD 73882, together with other stars.
The blue color of NGC 2626 is due to the way that light interacts with the dust particles in the nebula. Blue light has a shorter wavelength than red light, and it is scattered more easily by the dust particles. This is the same reason why the sky appears blue on Earth.
The red nebulosity in NGC 2626 is glowing hydrogen gas. The hydrogen gas is ionized by the ultraviolet radiation from the young stars in the nebula. This radiation causes the hydrogen gas to emit red light.
NGC 2626 is a relatively young nebula, and it is still actively forming stars. The young stars in the nebula are surrounded by clouds of dust and gas, which are slowly being eroded away by the radiation from the stars. This process will eventually reveal the stars to the naked eye.
NGC 2626 is a beautiful and complex object, and it is a fascinating example of star formation in our galaxy. It can be seen with a small telescope from dark skies, and it is a popular target for astrophotographers.
Here are some additional facts about NGC 2626:
It is about 100 light-years across.
It is located in the Vela Molecular Ridge, a complex of dusty molecular clouds.
It is thought to be about 1 million years old.
It is home to several young stars, including the B1 star CD-40 4432.
It is a popular target for astrophotographers.