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These seven astronauts took a break from training to pose for the STS-125 crew portrait. From the left are astronauts Michael J. Massimino and Michael T. Good, both mission specialists; Gregory C. Johnson, pilot; Scott D. Altman, commander; K. Megan McArthur, John M. Grunsfeld and Andrew J. Feustel, all mission specialists. The STS-125 mission was the final space shuttle mission to the Hubble Space Telescope.
Credit: NASA
Situé dans la constellation de la Chevelure de Bérénice (Coma Berenices), à 60 000 a.l. de la Terre, l'amas globulaire NGC 4147 possède 19 étoiles variables et 23 traînardes bleues, ces dernières étant présentes en plus grande proportion vers le cœur dense de l'amas, issues de fusions d'étoiles (cf. wikipédia).
Pour situer l'astre dans sa constellation :
www.flickr.com/photos/7208148@N02/48775942151/in/datepost...
La galaxie spirale barrée NGC 6956 se situe à 214 milluons d'années-lumière de la Terre dans la constellation du Dauphin (Dephinus). Sur un fond noir d'encre, les tourbillons bleus de ses brasse détachent radieusement avec une structure d'étoiles en forme de barre en son centre.
Cette galaxie contient des étoiles variables, les Céphéides, s’éclairant et s’assombrissant à des périodes régulières. Leur période étant fonction de leur luminosité permet de la mesurer depuis la Terre et de la comparer à leur luminosité réelle pour mieux déterminer leur distance, celle des objets cosmiques extragalactiques étant difficile à obtenir. Cette galaxie contient également une supernova de type Ia, explosion d’une étoile naine blanche accumulant progressivement la matière d’une étoile compagne. Comme les étoiles variables des Céphéides, la luminosité de ces types de supernovae et la vitesse à laquelle celle-ci diminue au fil du temps permettent aussi de calculer leur distance, mesures affinant la compréhension du taux d’expansion de l’univers, la constante de Hubble (cf. NASA, ESA et D. Jones Université de Californie-Santa Cruz et traitement : Gladys Kober NASA/Université catholique d'Amérique).
Pour situer la galaxie spirale barrée NGC 6956 (Hubble) dans la constellation du Dauphin (Dephinus) :
Members of the Hubble operations team work in the control room on July 15, 2021 to restore Hubble to science operations.
Credits: NASA/Goddard/Rebecca Roth
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More info:
Hubble’s payload computer, which controls and coordinates the observatory’s onboard science instruments, halted suddenly on June 13. When the main computer failed to receive a signal from the payload computer, it automatically placed Hubble’s science instruments into safe mode. That meant the telescope would no longer be doing science while mission specialists analyzed the situation.
In response to the anomaly, NASA began a switch to backup spacecraft hardware on Hubble in response to an ongoing problem with its payload computer. This was a multi-day event.
Science observations restarted the afternoon of Saturday, July 17.
Read more: www.nasa.gov/feature/goddard/2021/hubble-returns-to-full-...
Credit: NASA/Goddard/Rebecca Roth
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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To celebrate the 21st anniversary of the Hubble Space Telescope's deployment into space, astronomers at the Space Telescope Science Institute in Baltimore, Md., pointed Hubble's eye at an especially photogenic pair of interacting galaxies called Arp 273. The larger of the spiral galaxies, known as UGC 1810, has a disk that is distorted into a rose-like shape by the gravitational tidal pull of the companion galaxy below it, known as UGC 1813. This image is a composite of Hubble Wide Field Camera 3 data taken on December 17, 2010, with three separate filters that allow a broad range of wavelengths covering the ultraviolet, blue, and red portions of the spectrum.
Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
La galaxie spirale NGC 5037 (Hubble) se situe à 150 millions d'années-lumière de la Terre dans la constellation de la Vierge (Virgo). Elle fait partie du groupe de galaxies NGC 5044 qui en comprend au moins 17 autres et héberge un noyau galactique actif (AGN) fortement obscurci par ses structures délicates de gaz et de poussière (cf. ESA/Hubble & NASA, D. Rosario, remerciements : L. Shatz).
Pour situer la galaxie spirale NGC 5037 (Hubble) dans la constellation de la Vierge (Virgo) :
This is a small part of a cluster of stars photographed by the Hubble Space Telescope. It's the oldest known such association of stars that formed together as much as 8 billion years ago.
The fuzzier, elongated patches are much more distant galaxies, each composed of billions of stars, similar to our own Milky Way.
Find out more at hubblesite.org/newscenter/archive/releases/2008/25/
With five days of service and upgrade work on the Hubble Space Telescope (HST) behind them, the STS-109 crew members aboard the Space Shuttle Columbia took a picture of the entire observatory in the shuttle's cargo bay.
Credit: NASA
NGC 3603 is an open cluster of stars situated in the Carina spiral arm of the Milky Way around 20,000 light-years away from the Solar System. It is surrounded by the most massive visible cloud of glowing gas and plasma known as a H II region in the Milky Way. HD 97950 is the central star of star cluster, the densest concentration of very massive stars known in the galaxy. Strong ultraviolet radiation and stellar winds have cleared the gas and dust, giving an unobscured view of the cluster. -Wiki
Hubble Legacy Archive Data set:
HST_10602_a5_ACS_WFC_F435W_sci (Blue)
HST_10602_a5_ACS_WFC_F550M_sci (Green)
HST_10602_a5_ACS_WFC_F850LP_sci (Red)
hst_11360_a1_wfc3_uvis_f656n_sci (Red)
This data was used for the core:
HST_10602_05_ACS_HRC_F435W_sci
HST_10602_05_ACS_HRC_F550M_sci
HST_10602_05_ACS_HRC_F850LP_sci
hst_06763_01_wfpc2_f547m_wf_sci
hst_06763_01_wfpc2_f675w_wf_sci
hst_06763_01_wfpc2_f814w_wf_sci
More info in: Magical Universe. Visit: Flickr Astronomy Expo
Hubble Space Telescope
Hubble drifts over Earth after its release on 19 May 2009 by the crew of the Space Shuttle Atlantis. The crew had performed all planned tasks over the course of five spacewalks, making the Servicing Mission 4, the fifth astronaut visit to the Hubble Space Telescope, an unqualified success.
Credit: NASA/ESA
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The Sun reflects off the Hubble Space Telescope (HST) as it is held above the Space Shuttle Discovery's cargo bay by the shuttle's Remote Manipulator System (RMS) robotic arm. A thin slice of Earth's horizon runs across the photograph, taken in 1999 during the third HST servicing mission.
Credit: NASA
L'amas ouvert NGC 346 est associé à la plus vaste nébuleuse en émission de la galaxie naine du Petit Nuage de Magellan (PNM) et situé à 199 000 années-lumière de la Terre dans la constellation du Toucan (Tucana).
Pour situer l'amas ouvert NGC 346 (Hubble) dans la constellation du Toucan (Tucana) :
By using certain types of color filters, as in this Hubble Space Telescope image of Uranus, astronomers can extract more information about a celestial object than our eyes normally can see.
In this view, Uranus displays a banded structure of clouds and hazes aligned parallel to its equator. Additionally, a few discrete cloud features appear bright red. The color is due to methane absorption in the red part of the spectrum. Methane is third in abundance in the atmospheres of Uranus after hydrogen and helium, which are both transparent. Colors in the bands correspond to variations in the altitude and thickness of hazes and clouds. The colors allow scientists to measure the altitudes of clouds from far away.
This view also reveals the planet's faint rings and several of its moons. The area outside Uranus was enhanced in brightness to reveal the faint rings and moons. The outermost ring is brighter on the lower side, where it is wider. It is made of dust and small pebbles.
The bright moon in the lower right corner is Ariel, which has a snowy white surface. Five small moons with dark surfaces can be seen just outside the rings. Clockwise from the top, they are: Desdemona, Belinda, Portia, Cressida, and Puck.
For more information, visit: hubblesite.org/contents/media/images/2004/05/1449-Image.html
Credit: NASA and Erich Karkoschka, University of Arizona
Hubble Space Telescope
Launched in 1990 and greatly extended in its scientific powers through new instrumentation installed during four servicing missions with the Space Shuttle, the Hubble, in its sixteen years of operations, has validated Lyman Spitzer Jr.'s (1914-1997) original concept of a diversely instrumented observatory orbiting far above the distorting effects of the Earth’s atmosphere and returning data of unique scientific value.
The Whirlpool Galaxy - Messier 51
The Whirlpool Galaxy, also known as Messier 51a, M51a, or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus in the constellation Canes Venatici (the Hunting Dogs). It was the first galaxy to be classified as a spiral galaxy. Recently it was estimated to be 23 ± 4 million light-years from our Milky Way galaxy.
Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
Dans la constellation de Céphée (Cepheus), la nébuleuse d'émission NGC 7822 se situe à 3 000 a.l. de la Terre (cf. wikipédia).
Pour situer l'astre dans sa constellation :
Resembling curling flames from a campfire, this magnificent nebula in a neighboring galaxy is giving astronomers new insight into the fierce birth of stars as it may have more commonly happened in the early universe. The glowing gas cloud, called Hubble-V, has a diameter of about 200 light-years. A faint tail of nebulosity trailing off the top of the image sits opposite a dense cluster of bright stars at the bottom of the irregularly shaped nebula.
The Hubble Space Telescope's resolution and ultraviolet sensitivity reveal a dense knot of dozens of ultra-hot stars nestled in the nebula, each glowing 100,000 times brighter than our Sun. These youthful 4-million-year-old stars are too distant and crowded together to be resolved from ground-based telescopes.
The small, irregular host galaxy, called NGC 6822, is one of the Milky Way's closest neighbors and is considered prototypical of the earliest fragmentary galaxies that inhabited the young universe. The galaxy is 1.6 million light-years away in the constellation Sagittarius.
The Hubble-V image data was taken with Hubble's Wide Field and Planetary Camera 2 (WFPC2).
For more information please visit:
hubblesite.org/image/1126/news_release/2001-39
Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
Acknowledgment: C. R. O'Dell (Vanderbilt University) and L. Bianchi (Johns Hopkins University and Osservatorio Astronomico, Torinese, Italy)
Original image by ESA/NASA/Hubble Credit:NASA, ESA, and The Hubble Heritage Team STScI/AURA) Processing: Elisabetta Bonora & Marco Faccin / aliveuniverse.today
L'ensemble des trois galaxies spirales NGC 7764A est situé à environ 425 millions d'années-lumière de la Terre dans la constellation du Phénix (Phoenix), NGC 7764A1 (en haut à droite), NGC 7764A2 (au centre) et NGC 7764A3 (en bas à gauche). Cette dénomination est plutôt aléatoire, de nombreux objets astronomiques ayant plusieurs noms différents ou des noms si similaires qu’ils prêtent à confusion.
Les deux galaxies en haut à droite semblent interagir l'une avec l'autre avec de longues traînées d'étoiles et de gaz, qui s'en éloignent et donnent l'impression qu'elles viennent toutes deux d'être frappées à grande vitesse et bouleversées par la galaxie en forme de boule de bowling située en bas à gauche. En réalité, ces interactions entre galaxies se produisent sur de très longues périodes, entrant rarement en collision frontale. De plus, la galaxie en bas à gauche n'interagit pas forcément avec les deux autres, bien qu'elles soient si relativement proches qu'il semble possible que ce soit le cas. Par une curieuse coïncidence, l'interaction collective entre ces galaxies a amené les deux galaxies en haut à droite à avoir l'allure d'un vaisseau spatial comme Star Treek ! (cf. ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey, DOE, FNAL, DECam, CTIO, NOIRLab/NSF/AURA, ESO, J. Schmidt).
Pour situer le groupe de trois galaxies spirales NGC 7764A (Hubble) dans la constellation du Phénix (Phoenix) :
D'un diamètre de 80 000 années-lumière, la galaxie spirale NGC 2775 est située à 67 millions d'années-lumière de la Terre dans la constellation du Cancer. Le trou noir supermassif qui s'y trouve fait a priori 79 millions de masses solaires. Le grand renflement central jaunâtre de la galaxie est inhabituellement grand et relativement vide, rempli de vieilles étoiles où tout le gaz a été converti en étoiles il y a longtemps et entouré de bras spiraux étroitement enroulés, décorés de poussière sombre.
Des millions de jeunes étoiles bleues et chaudes brillent dans ses bras spiraux complexes en forme de plumes, entrelacés de sombres bandes de poussière. Ces motifs en spirale se sont formés par le cisaillement des nuages de gaz lors de la rotation de la galaxie et contrastent avec les autres galaxies spirales ayant des bras spiraux proéminents et bien définis.
Pour situer la galaxie spirale NGC 2775 (Hubble) dans la constellation du Cancer :
Dans la constellation de la Carène (Carina), à 7 500 a.l. de la terre, la nébuleuse en émission NGC 3324 est située à la périphérie de la région chaotique de la nébuleuse de la Carène NGC 3372, un environnement riche en gaz et en poussière. Les rayonnements et vents stellaires des jeunes étoiles ont expulsé la matière de la nébuleuse et y ont produit un creux (cf. wikipédia).
Pour situer l'astre dans sa constellation :
Full frame version in the Hubble Palette. More noise, less soft.
SV80ED (first light)
SFF7-21
CGEM
Starizona Micro Touch
St8300M @ -5 C
FW8-8300
Baader filters
Red 18 x 10 min SII filter
Green 17 x 10 min Ha filter
Blue 18 x 10 min OIII filter
Guided by PHD, Orion SSAG & ST80
Captured with Nebulosity 8/20/2011
Processed by Pixinsight & Photoshop.
HH 505
Herbig Haro object in the constellation Orion. A small fraction of the central area of
M 42. Modified Hubble palette.
Data from MAST
J8DW02030 ACS/WFC CLEAR1L;F660N
J8DW02010 ACS/WFC F658N;CLEAR2L
J8DW02050 ACS/WFC F502N;CLEAR2L
Astronauts used these yellow handrails on the Hubble Space Telescope to move about during their servicing activities. The STS-109 mission was the fourth shuttle visit to Hubble for servicing since the telescope's deployment on April 25, 1990.
Credit: NASA
You'll need to go to the ORIGINAL size to see these images as they appeared in a Powerpoint presentation. I took the Powerpoint apart and repasted to make this Hubble Space Poster. If you have a space nut around you place you may want to order a print. I'll add some dialog and then your space nut can do image searches on the planets by name and then identify them on the chart. That ought to keep them busy for a little while.....evil grin.
The Hubble Space Telescope is a robotic telescope located on the outer edge of the atmosphere, in circular orbit around the Earth at 593 km above sea level, with an orbital period between 96 and 97 minutes at a speed 28,000 km / h. Named as a tribute to Edwin Hubble, was launched into orbit on 24 April 1990 as a joint project of NASA and ESA, thus inaugurating the Great Observatories program.
Cylindrically shaped Hubble weighs 11 tons. Its length is 13.2 m and its maximum diameter is 4.2 meters.
The telescope can obtain images with higher optical resolution
0.1 seconds of arc.
NGC 4921 is a barred spiral galaxy, though that might be a bit difficult to tell from its lack of clear spiral arms. It is located in the Coma Cluster of galaxies in the constellation Coma Berenices and is about 320 million light-years away. This galaxy has a low rate of star formation and is not making a lot of young, new stars. The blue areas highlighted in the galaxies show where the meager young star population is clustered.
It is near the center of the cluster and it was shown that this galaxy is low in hydrogen. This was determined through spectroscopic techniques, which can determine the elements in the galaxy. Without a lot of hydrogen, which is needed to fuel new star growth, it makes sense that this galaxy does not have a lot of young stars. The interstellar medium might be stripping the galaxy of this important gas and causing the low rate of hydrogen.
The image was taken by the Hubble Space Telescope. It was an image created using three greyscale images that were colorized in Photoshop CC. The images used were:
RED: hst_mos_0439884_acs_wfc_f814w_sci
GREEN: hst_mos_0439884_acs_wfc_f606w_sci
BLUE: hst_mos_0439884_wfc3_uvis_f350lp_sci
Resources:
The image is associated with Hubble proposal 10842: A Cepheid Distance to the Coma Cluster
This image was processed by myself, Alexandra Nachman, on 05/11/21 using data from the Hubble Legacy Archive. Images taken by NASA/ESA/Hubble Space Telescope.
Dans la constellation de la Baleine (Cetus), à 2,36 millions d'a.l. de la Terre, la galaxie naine IC 1613 renferme très peu de poussière cosmique (cf. Hubble).
Pour situer l'astre dans sa constellation :
www.flickr.com/photos/7208148@N02/48889211828/in/datepost...
Dans la constellation de la Baleine (Cetus), à 350 millions d'a.l. de la Terre, les galaxies spirales Arp 256 forment un système étonnant étant en début de fusion. Leurs formes sont fortement perturbées et un nombre étonnant de nœuds bleus de formation d’étoiles ressemblent à des feux d’artifice qui explosent. La galaxie à gauche a deux queues étendues, contenant du gaz, de la poussière et des étoiles. Le système infrarouge et lumineux rayonne plus de cent milliards de fois la luminosité de notre Soleil (cf. site Hubble).
Pour situer les astres dans leur constellation :