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Neptune Full Disk View

roz — Mon, 17 May 2010 07:32:14 +0000

This picture of Neptune was produced from the last whole planet images taken through the green and orange filters on the Voyager 2 narrow angle camera. The images were taken at a range of 4.4 million miles from the planet, 4 days and 20 hours before closest approach. The picture shows the Great Dark Spot and its companion bright smudge; on the west limb the fast moving bright feature called Scooter and the little dark spot are visible. These clouds were seen to persist for as long as Voyager’s cameras could resolve them. North of these, a bright cloud band similar to the south polar streak may be seen. Years later, when the Hubble telescope was focused on the planet, these atmospheric features had changed, indicating that Neptune’s atmosphere is dynamic. The Voyager Mission is conducted by JPL for NASA’s Office of Space Science and Applications, Washington, DC.

Date:
04/02/1990
NASA Center:
Jet Propulsion Laboratory
Subject Category:
Voyager-Galileo
Subject Category:
Planet-Neptune
Keywords:
Laboratory
Keywords:
Jet
Keywords:
Propulsion
Keywords:
JPL
Keywords:
2
Keywords:
Voyager
Keywords:
Neptune
Audience:
General Public
facet_what:
FAST
facet_what:
Polar
facet_what:
Galileo
facet_what:
Voyager
facet_what:
Neptune
facet_what:
Voyager 2
facet_where:
Washington
facet_where:
Jet Propulsion Laboratory
facet_where:
Jet Propulsion Laboratory (JPL)
facet_when:
04-02-1990
facet_when_year:
1990
Image #:
PIA01492
orignial url:
http://grin.hq.nasa…
UID:
SPD-GRIN-GPN-2000-00 0443
Center:
JPL
Center Number:
PIA01492
GRIN DataBase Number:
GPN-2000-000443
Creator-Photographer:
NASA
Original Source:
DIGITAL
Image ID:
127349
Resolution Size:
5
Format:
JP2
Media Type:
Image
File Name:
GPN-2000-000443.jp2
Width:
2188
Height:
2185

Hubble Space Telescope Looks at the Moon to Prospect for Resources (Apollo 17 Landing Region)

roz — Mon, 17 May 2010 07:26:03 +0000

HST imagery of the Apollo 17 landing site draped over Apollo 17 derived topography
Abstract:
The Hubble Space Telescope looked at specific areas of the moon prospecting for important minerals that may aid future sustained human presence on the moon. Initial analysis of the data indicate the likely presence of titanium and iron oxides. These minerals can be sources of oxygen, essential for human exploration. This visualization starts with a view of the moon as seen from Earth using a USGS Apollo derived artist rendered texture (airbrushed). The camera then zooms into the Apollo 17 landing region using Clementine data (the outer area after the camera pauses), high resolution HST data (the inner area), and Apollo 17 derived topgraphy. Exposure Time: 2.5 minutes Filters: F250W (250nm), F344N (344nm), F502N (502nm), F658N (658nm) Data from these multiple filters were used to produce the mosaic Apollo 17 landing site image.

Completed:
2005-10-12
Credit:
*Please give credit for this visualization to* NASA/Goddard Space Flight Center Scientific Visualization Studio Additional credit to Zoltan G. Levay (STScI)
Studio:
SVS
Animator:
Greg Shirah (Lead)
Animator:
Alex Kekesi
Animator:
Horace Mitchell
Animator:
Greg Bacon
Scientist:
James Garvin (NASA/GSFC)
Data Collected:
HST: 2005/08/16 – 2005/08/21; Clementine: 1994/02/26-1994/05/0 5
Keywords:
SVS
Keywords:
HDTV
Keywords:
Lunar
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Earth
facet_what:
Apollo 17
facet_what:
Moon
facet_what:
Clementine
facet_what:
Hubble Space Telescope (HST)
Animation Number:
3274
UID:
SPD-SCIVS-http://svs .gsfc.nasa.gov/vis/a 000000/a003200/a0032 74/StillApollo.0550- IMAGE
original url:
http://svs.gsfc.nas…
Image ID:
110279
Resolution Size:
5
Format:
JP2
Media Type:
Image
File Name:
StillApollo.0550.jp2
Width:
2560
Height:
1920

HST Image of M83 Central Region

roz — Mon, 17 May 2010 07:25:59 +0000

This HST image reveals that there is active star formation in both the bright nucleus of M83 as well as farther out in the spiral arms where bluer stars are seen. In between the nucleus and the outer spiral arms, there is a greenish-colored, bar-shaped region. Astronomers believe this area contains middle-aged stars and that it is largely devoid of active star formation.

facet_what:
Hubble Space Telescope (HST)
facet_where:
M83
UID:
SPD-CHAND-photo/2003 /1154/1154_wfpc_alig ned.jpg
original url:
http://chandra.harv…
Image ID:
235805
Resolution Size:
3
Format:
JPEG
Media Type:
Image
File Name:
1154_wfpc_aligned.jp g
Width:
576
Height:
576

M82: An Irregular Galaxy

roz — Mon, 17 May 2010 07:25:57 +0000

Not all galaxies have spiral structure like our Milky Way. Many have smooth elliptical shapes, but also many have irregular shapes such as the bright sky object M82, the 82nd object on Messier’s [ http://antwrp.gsfc.…] list. The strange structure of this galaxy is thought to be caused by young stars ejecting gas in energetic bubbles, and by lanes of absorbing dust. [ http://antwrp.gsfc.…] For more information on M82 see The Electronic Universe Project’s write-up. [ http://zebu.uoregon…] Many images of Messier objects can be found in The Electronic Universe Project’s The Galaxy Gallery: Messier Objects. [ http://zebu.uoregon…] Tomorrow’s picture: M27: The Dumbbell Nebula

Credit and Copyright:
The Electronic Universe Project
facet_where:
M82
facet_where:
Goddard Space Flight Center (GSFC)
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap950728
Image ID:
107192
Resolution Size:
2
Format:
JPEG
Media Type:
Image
File Name:
m82_moo.jpg
Width:
300
Height:
264

M101: The Pinwheel Galaxy

roz — Mon, 17 May 2010 07:25:50 +0000

Why do many galaxies appear as spirals [ http://antwrp.gsfc.…]? A striking example is M101, shown above [ http://www.astr.ua.…], whose relatively close distance of about 22 million light years allow it to be studied in some detail. Recent evidence [ http://adsabs.harva…] indicates that a close gravitational interaction with a neighboring galaxy created waves of high mass [ http://lsnt7.lights…] and condensed gas which continue to circle the galaxy [ ftp://crux.astr.ua.…]. These waves compress existing gas and cause star formation [ http://antwrp.gsfc.…]. One result is that M101 [ http://antwrp.gsfc.…], also called the Pinwheel Galaxy, has several extremely bright star-forming regions (called HII regions) spread across its spiral arms. M101 [ http://www.seds.org…] is so large that its immense gravity distorts smaller nearby galaxies.

Credit and Copyright:
W. Keel (U. Alabama in Tuscaloosa), KPNO [ http://www.noao.edu…], 4-m Mayall Telescope [ http://www.noao.edu…]
facet_where:
M101
facet_where:
Pinwheel Galaxy
facet_where:
Alabama
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Crux
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap970805
Image ID:
107815
Resolution Size:
3
Format:
JPEG
Media Type:
Image
File Name:
m101_wk_big.jpg
Width:
512
Height:
512

More Images of M87 (Jet)

roz — Mon, 17 May 2010 07:25:45 +0000

facet_what:
Hubble Space Telescope (HST)
facet_where:
M87
UID:
SPD-CHAND-photo/2001 /0134/0134_hst.jpg
original url:
http://chandra.harv…
Image ID:
236734
Resolution Size:
3
Format:
JPEG
Media Type:
Image
File Name:
0134_hst.jpg
Width:
576
Height:
370

M104: The Sombrero Galaxy

roz — Mon, 17 May 2010 07:25:41 +0000

The famous Sombrero galaxy (M104) is a bright nearby spiral galaxy [ http://antwrp.gsfc.…]. The prominent dust [ http://antwrp.gsfc.…] lane and halo of stars and globular clusters [ http://antwrp.gsfc.…] give this galaxy [ http://antwrp.gsfc.…] its name. Something very energetic is going on in the Sombrero’s center, as much X-ray [ http://antwrp.gsfc.…] light has been detected from it. This X-ray emission coupled with unusually high central stellar velocities cause many astronomers to speculate that a black hole [ http://cossc.gsfc.n…] lies at the Sombrero’s center – a black hole [ http://cossc.gsfc.n…] a billion times the mass of our Sun [ http://antwrp.gsfc.…]. This image was taken in blue light by the 0.9 meter telescope at Kitt Peak National Observatory.

Credit and Copyright:
T. Boroson (NOAO [ http://www.noao.edu/] /USGP [ http://www.noao.edu…]), W. Keel (UA [ http://ua1vm.ua.edu/]), KPNO [ http://www.noao.edu…]
facet_where:
M104
facet_where:
Sombrero Galaxy
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Sun
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap951109
Image ID:
107283
Resolution Size:
3
Format:
JPEG
Media Type:
Image
File Name:
sombrero_kp_big.jpg
Width:
614
Height:
338

Nearby Dwarf Galaxy Leo I

roz — Mon, 17 May 2010 07:25:37 +0000

Leo I is a dwarf spheroidal galaxy [ http://www.astro.uu…] in the Local Group [ http://antwrp.gsfc.…] of galaxies dominated by our Milky Way Galaxy [ http://antwrp.gsfc.…] and M31 [ http://antwrp.gsfc.…]. Leo I is thought to be the most distant of the eleven known small satellite galaxies [ http://www.astro.uu…] orbiting our Milky Way Galaxy [ http://antwrp.gsfc.…]. Besides the LMC [ http://antwrp.gsfc.…] and the SMC [ http://antwrp.gsfc.…], all Milky Way satellite galaxies are small, dim, dwarf spheroidals [ http://www.astro.uu…], including the closest galaxy – the Sagittarius Dwarf [ http://antwrp.gsfc.…]. Leo I is most distant than most of them, thought to be about 250 kpc away. Analysis of stars in Leo I show it contains many stars only about 3 billion years old – much younger than in most galaxies.

Credit and Copyright:
Anglo-Australian Telescope [ http://www.aao.gov.…] photograph by David Malin
Credit and Copyright:
Anglo-Australian Telescope Board [ http://www.aao.gov.…]
facet_where:
Milky Way Galaxy
facet_where:
M31
facet_where:
dwarf galaxy
facet_where:
Leo I
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Sagittarius
facet_what:
Leo
facet_what:
dwarf
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap960519
Image ID:
107446
Resolution Size:
2
Format:
JPEG
Media Type:
Image
File Name:
leo_aat.jpg
Width:
300
Height:
239

Nearby Dwarf Galaxy Leo I

roz — Mon, 17 May 2010 07:25:36 +0000

Leo I is a dwarf spheroidal galaxy [ http://www.astro.uu…] in the Local Group [ http://www.seds.org…] of galaxies dominated by our Milky Way Galaxy [ http://antwrp.gsfc.…] and M31 [ http://antwrp.gsfc.…]. Leo I is thought to be the most distant of the eleven known small satellite galaxies [ http://www.astro.uu…] orbiting our Milky Way Galaxy [ http://antwrp.gsfc.…]. Besides the LMC [ http://antwrp.gsfc.…] and the SMC [ http://antwrp.gsfc.…], all Milky Way satellite galaxies are small, dim, dwarf spheroidals [ http://www.astro.uu…], including the closest galaxy – the Sagittarius Dwarf [ http://antwrp.gsfc.…]. Leo I is more distant than most of them, thought to be about 250 kpc away. Although very little star-forming gas is visible in Leo I [ http://www.aao.gov.…], analysis of star ages shows [ http://adsabs.harva…] that stars have formed as recently as a billion years ago.

Credit and Copyright:
David Malin (AAO [ http://www.aao.gov.…]), AATB [ http://www.aao.gov.…]
keyword:
galaxy
keyword:
local group
keyword:
dwarf spheroidal
facet_where:
Milky Way Galaxy
facet_where:
M31
facet_where:
dwarf galaxy
facet_where:
Leo I
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Sagittarius
facet_what:
Leo
facet_what:
dwarf
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap991003
Image ID:
108519
Resolution Size:
3
Format:
JPEG
Media Type:
Image
File Name:
leo1_aao.jpg
Width:
400
Height:
320