The icy blue wings of Hen 2-437
In this cosmic snapshot, the spectacularly symmetrical wings of Hen 2-437 show up in a magnificent icy blue hue. Hen 2-437 is a planetary nebula, one of around 3000 such objects known to reside within the Milky Way.
Located within the faint northern constellation of Vulpecula (The Fox), Hen 2-437 was first identified in 1946 by Rudolph Minkowski, who later also discovered the famous and equally beautiful M2-9 (otherwise known as the Twin Jet Nebula). Hen 2-437 was added to a catalogue of planetary nebula over two decades later by astronomer and NASA astronaut Karl Gordon Henize.
Planetary nebulae such as Hen 2-437 form when an aging low-mass star — such as the Sun — reaches the final stages of life. The star swells to become a red giant, before casting off its gaseous outer layers into space. The star itself then slowly shrinks to form a white dwarf, while the expelled gas is slowly compressed and pushed outwards by stellar winds. As shown by its remarkably beautiful appearance, Hen 2-437 is a bipolar nebula — the material ejected by the dying star has streamed out into space to create the two icy blue lobes pictured here.
Credit:ESA/Hubble & NASA
Acknowledgement: Judy Schmidt (Geckzilla)
About the Image
Id: | potw1606a |
Type: | Observation |
Release date: | 8 February 2016, 06:00 |
Size: | 1397 x 977 px |
About the Object
Wallpapers
Coordinates
Position (RA): | 19 32 57.56 |
Position (Dec): | 26° 52' 43.20" |
Field of view: | 1.16 x 0.81 arcminutes |
Orientation: | North is 170.2° right of vertical |
Colours & filters
Band | Wavelength | Telescope |
---|---|---|
Optical F606W | 606 nm |
Hubble Space Telescope
ACS |
Infrared F814W | 814 nm |
Hubble Space Telescope
ACS |