galaxiesoftheuniverse
afro-dominicano:


An Interacting Colossus

This picture, taken by the NASA/ESA Hubble Space Telescope’s Wide Field Planetary Camera 2 (WFPC2), shows a galaxy known as NGC 6872 in the constellation of Pavo (The Peacock).
Its unusual shape is caused by its interactions with the smaller galaxy that can be seen just above NGC 6872, called IC 4970. They both lie roughly 300 million light-years away from Earth.
From tip to tip, NGC 6872 measures over 500 000 light-years across, making it the second largest spiral galaxy discovered to date. In terms of size it is beaten only by NGC 262, a galaxy that measures a mind-boggling 1.3 million light-years in diameter!
To put that into perspective, our own galaxy, the Milky Way, measures between 100 000 and 120 000 light-years across, making NGC 6872 about five times its size.

afro-dominicano:

An Interacting Colossus

This picture, taken by the NASA/ESA Hubble Space Telescope’s Wide Field Planetary Camera 2 (WFPC2), shows a galaxy known as NGC 6872 in the constellation of Pavo (The Peacock).

Its unusual shape is caused by its interactions with the smaller galaxy that can be seen just above NGC 6872, called IC 4970. They both lie roughly 300 million light-years away from Earth.

From tip to tip, NGC 6872 measures over 500 000 light-years across, making it the second largest spiral galaxy discovered to date. In terms of size it is beaten only by NGC 262, a galaxy that measures a mind-boggling 1.3 million light-years in diameter!

To put that into perspective, our own galaxy, the Milky Way, measures between 100 000 and 120 000 light-years across, making NGC 6872 about five times its size.

galaxiesoftheuniverse

galaxiesoftheuniverse:

The Red Spider Nebula

The Red Spider Nebula(NGC 6537) is a planetary nebula located in the constellation Sagittarius. The nebula has a prominent two-lobed shape, possibly due to a binary companion or magnetic fields.

The central white dwarf, the remaining compact core of the original star, produces a powerful and hot wind blowing with a speed of 300 kilometers per second, which has generated waves 100 billion kilometres high. These winds are what give this nebula its unique ‘spider’ shape and also contribute to the expansion of the nebula.

The star at the center of the Red Spider Nebula is surrounded by a dust shell making its exact properties hard to determine.

Its surface temperature is probably 150,000-250,000 K although a temperature of 340,000 K or even 500,000 K is not ruled out, making it among the hottest white dwarf stars known.

thedemon-hauntedworld
thedemon-hauntedworld:

M42 The Orion Nebula in Mapped Color
This image was created using the Hubble color palette. The colors  follow the spirit of the palette and the hydrogen (green), sulfur (red) and oxygen (blue) areas can easy be identified.

The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south of Orion’s Belt. It is one of the brightest nebulae, and is visible to the naked eye. M42 is located at a distance of 1,270±76 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across.

Credit: Bob Franke

thedemon-hauntedworld:

M42 The Orion Nebula in Mapped Color
This image was created using the Hubble color palette. The colors follow the spirit of the palette and the hydrogen (green), sulfur (red) and oxygen (blue) areas can easy be identified.

The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south of Orion’s Belt. It is one of the brightest nebulae, and is visible to the naked eye. M42 is located at a distance of 1,270±76 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across.

Credit: Bob Franke