Hubble reveals NGC 2440
This image of NGC 2440 shows the colourful "last hurrah" of a star like our Sun. The star is ending its life by casting off its outer layers of gas, which formed a cocoon around the star's remaining core. Ultraviolet light from the dying star makes the material glow. The burned-out star, called a white dwarf, is the white dot in the centre.
Credit:
About the Image
NASA caption
| Id: | heic0703a |
| Type: | Observation |
| Release date: | 13 February 2007, 17:00 |
| Related releases: | heic0703 |
| Size: | 1241 x 1207 px |
About the Object
| Name: | NGC 2440 |
| Type: | • Milky Way : Nebula : Type : Planetary • Nebulae Images/Videos |
| Distance: | 4000 light years |
Colours & filters
| Band | Wavelength | Telescope |
| Optical B |
439 nm | Hubble Space Telescope WFPC2 |
| Optical Heii |
469 nm | Hubble Space Telescope WFPC2 |
| Optical Oiii |
502 nm | Hubble Space Telescope WFPC2 |
| Optical V |
555 nm | Hubble Space Telescope WFPC2 |
| Optical H-alpha |
656 nm | Hubble Space Telescope WFPC2 |
| Optical Nii |
658 nm | Hubble Space Telescope WFPC2 |
Images
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