NGC 2440

Esahubble_opo9935e_1024

esahubble_opo9935e October 7th, 1999

Credit: NASA/ESA and The Hubble Heritage Team (AURA/STScI).

NGC 2440 is another planetary nebula ejected by a dying star, but it has a much more chaotic structure than NGC 2346. The central star of NGC 2440 is one of the hottest known, with a surface temperature near 200,000 degrees Celsius. The complex structure of the surrounding nebula suggests to some astronomers that there have been periodic oppositely directed outflows from the central star, somewhat similar to that in NGC2346, but in the case of NGC 2440 these outflows have been episodic, and in different directions during each episode. The nebula is also rich in clouds of dust, some of which form long, dark streaks pointing away fromthe central star. In addition to the bright nebula, which glows becauseof fluorescence due to ultraviolet radiation from the hot star, NGC 2440 is surrounded by a much larger cloud of cooler gas which is invisible in ordinary light but can be detected with infrared telescopes. NGC 2440 lies about 4,000 light-years from Earth in thedirection of the constellation Puppis. The Hubble Heritage team made this image from observations of NGC 2440acquired by Howard Bond (STScI) and Robin Ciardullo (Penn State).

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/opo9935e/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 2440
Subject - Milky Way
Nebula > Type > Planetary
Esahubble_opo9935e_128
 

Position Details

Position (ICRS)
RA = 7h 41m 55.3s
DEC = -18° 12’ 31.0”
Orientation
North is 6.7° CCW
Field of View
0.5 x 0.5 arcminutes
Constellation
Puppis

Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFPC2) Optical (R) 675.0 nm
Green Hubble (WFPC2) Optical (H-alpha) 656.0 nm
Blue Hubble (WFPC2) Optical (SII) 673.0 nm
Spectrum_base
Red
Green
Blue
Esahubble_opo9935e_1280
×
ID
opo9935e
Subject Category
B.4.1.3  
Subject Name
NGC 2440
Credits
NASA/ESA and The Hubble Heritage Team (AURA/STScI).
Release Date
1999-10-07T18:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/opo9935e/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFPC2, WFPC2, WFPC2
Color Assignment
Red, Green, Blue
Band
Optical, Optical, Optical
Bandpass
R, H-alpha, SII
Central Wavelength
675, 656, 673
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
115.4804677, -18.2086012
Reference Dimension
644.0, 644.0
Reference Pixel
323.0, 323.0
Scale
1.25751681457e-05, 1.25878126555e-05
Rotation
6.7
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
WCS info from NASA/Hubble
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
opo9935e
Metadata Date
2003-12-09T17:55:10+01:00
Metadata Version
1.1
×

 

Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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