New Hubble image pays tribute to WFPC2

Esahubble_ann0906a_500

esahubble_ann0906a May 11th, 2009

Credit: NASA & ESA

The Hubble community bids farewell to the soon-to-be decommissioned Wide Field Planetary Camera 2 (WFPC2) onboard the Hubble Space Telescope. In tribute to Hubble's longest running optical camera, a planetary nebula has been imaged as WFPC2's final "pretty picture". This planetary nebula is known as Kohoutek 4-55 (or K 4-55). It is one of a series of planetary nebulae that were named after their discoverer, Czech astronomer Lubo Kohoutek. A planetary nebula is formed from material in the outer layers of a red giant star that were expelled into interstellar space when the star was in the late stages of its life. Ultraviolet radiation emitted from the remaining hot core of the star ionises the ejected gas shells, causing them to glow. In the specific case of K 4-55, a bright inner ring is surrounded an asymmetric, fainter layer. The entire system is then surrounded by a faint red halo of light emitted by ionised nitrogen. This multi-shell structure is fairly uncommon in planetary nebulae. This Hubble image was taken on 4 May 2009, with WFPC2. The colours represent the makeup of the various emission regions in the nebula: red represents nitrogen, green indicates hydrogen and blue, oxygen. K 4-55 is nearly 4600 light-years away in the constellation of Cygnus. The WFPC2 instrument, which was installed in 1993 to replace the Wide Field/Planetary Camera, will be removed to make room for the Wide Field Camera 3 during the upcoming Hubble Servicing Mission. During the camera's 16-year tour of duty, WFPC2 has provided outstanding science and spectacular images of the cosmos, an enduring legacy of astronomical treasures. Some of its best-remembered images are of the "Pillars of Creation" in the Eagle Nebula, Comet P/Shoemaker-Levy 9's impact on Jupiter's atmosphere and the 1995 Hubble Deep Field the longest and deepest Hubble optical image of its time. Kohoutek used ESO telescopes extensively at La Silla, Chile, to conduct much of his research on planetary nebulae. The Czech Republic became the thirteenth member state of the European Southern Observatory in 2007. Image caption: see hereImage credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA). Acknowledgment: R. Sahai and J. Trauger (Jet Propulsion Laboratory)

Image Source: https://www.spacetelescope.org/images/ann0906a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
PN K 4-55
Subject - Milky Way
Nebula » Type » Planetary
Esahubble_ann0906a_128
 

Position Details

Position (ICRS)
RA = 20h 45m 10.6s
DEC = 44° 39’ 10.9”
Orientation
North is 57.0° CCW
Field of View
1.0 x 1.2 arcminutes
Constellation
Cygnus

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_orange Hubble Space Telescope (WFPC2) Optical (NII) 658.0 nm
Arrow_left_green Hubble Space Telescope (WFPC2) Optical (H-alpha) 656.0 nm
Arrow_left_blue Hubble Space Telescope (WFPC2) Optical (OIII) 502.0 nm
Spectrum_base
Arrow_top_orange
Arrow_top_green
Arrow_top_blue
Esahubble_ann0906a_1280
×
ID
ann0906a
Subject Category
B.4.1.3  
Subject Name
PN K 4-55
Credits
NASA & ESA
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/ann0906a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFPC2, WFPC2, WFPC2
Color Assignment
Orange, Green, Blue
Band
Optical, Optical, Optical
Bandpass
NII, H-alpha, OIII
Central Wavelength
658, 656, 502
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
311.294167803, 44.6530195504
Reference Dimension
1226.0, 1397.0
Reference Pixel
613.0, 698.5
Scale
-1.39075142727e-05, 1.39075142727e-05
Rotation
57.00000000000005
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org/
Name
STScI
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
ann0906a
Metadata Date
2015-10-02T14:25:33.386554
Metadata Version
1.1
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Detailed color mapping information coming soon...

 

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There is no distance meta data in this image.