Apollo 17 Celestial Navigation Post-Lunar-Landing Star Chart

Apollo 17 Celestial Navigation Post-Lunar-Landing Star Chart

A critical celestial navigational device used inside the Lunar Module bearing traces of lunar dust. This is a post-landing, 8-inch diameter, circular star chart. All major stars and constellations visible from the Taurus-Littrow landing site are plotted underneath a rotating translucent position locator. The locator has six concentric circular plots, sixty degrees apart, that correspond to position locators set for the Alignment Optical Telescope inside the Lunar Module. The Velcro patch on the reverse shows traces of lunar dust.

“In some ways, when we voyaged to the moon, we were not unlike ancient mariners of the past. The stars were not only to light our way, but were used to guide us to our destination. We had onboard a sextant and telescope similar to what has been used for thousands of years but to make them useful we had to know what the heavens looked like, where the stars were, be able to recognize them and tell our computer through the sextant exactly what stars we were tracking. As a quick reference, we took star charts.. and those star charts of particular importance were the ones we carried to the lunar surface. Our first concern after landing would be to prepare for an immediate lift off in case of emergency. In order to assure that our lift off be successful so that we could subsequently rendezvous with our Command Module, we had to be absolutely sure of our Lunar Module’s position and orientation on the Lunar surface.”
— Eugene Cernan, Commander Apollo XVII in accompanying signed letter

When the Star Charts for Apollo were designed, three stars’ names were made up by Gus Ivan Grissom as a tribute to his fellow Apollo 1 crew members. Star number 3 was named “NAVI,” which is Grissom’s middle name spelled backwards. Star number 17 was named “REGOR,” which is Roger (Chaffee) spelled backwards. Star number 20 was named “DNOCES,” which is Second (Ed White II) spelled backwards. After the tragic deaths of the Apollo 1 crew in a training accident, NASA honored the men by maintaining the names on all of the Star Charts.

15×32" in frame (x22" when closed)

From “Mooncollector” Jim Ruddy lifetime collection, When Jim turned 82 and his health was failing, he wanted to bundle his collection of lunar surface artifacts together in a single sale to someone who would care for them, and so he contacted me. I agreed to procure the collection and spent some time with him discussing each artifact at his home in Palm Springs. He was meticulous and carefully framed each precious treasure. Soon after I added this to the FV space collection in 2015, he passed away.

Posted by jurvetson on 2020-02-03 04:46:37

Tagged: , Space , Collection , Lunar , Flown , Artifacts , Jim , Ruddy , Apollo , Mooncollector , Blue , 17 , Celestial , Navigation , Post-Landing , Star , Chart

Backyard Milkyway

Backyard Milkyway

After a day of heavy rain, some hail, and then sunshine, the sky cleared enough to let the milky way shine

©Terry L Richmond

Posted by Terry L Richmond on 2018-09-28 05:13:43

Tagged: , sky , nature , smoke , astronomy , galaxy , landscape , night , space , outdoor , moon , grass , no person , atmosphere , field , hill , exploration , astronomical object , air , outer space , calamity , tree , riding , darkness , green , explosion , star , flying , outdoors , universe , track , sun , milky way , man , dust , water , spacecraft , hillside , science , mountain , meteorological phenomenon , large , dawn , midnight , train , travel , computer wallpaper , eruption , grassy , snow , standing

The pleaides

The pleaides

The Pleiades (/ˈplaɪ.ədiːz, ˈpliːə-/), also known as the Seven Sisters and Messier 45, are an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky.

The cluster is dominated by hot blue and luminous stars that have formed within the last 100 million years. Reflection nebulae around the brightest stars were once thought to be left over material from the formation of the cluster, but are now considered likely to be an unrelated dust cloud in the interstellar medium through which the stars are currently passing.

Computer simulations have shown that the Pleiades were probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

Posted by Zelaox on 2019-02-13 20:26:00

Tagged: , Space , stars , star , dark , photoshop , ´´dark , frames´´

M45 – The Pleiades Cluster

M45 - The Pleiades Cluster

The Pleiades, also known as M45, the Seven Sisters or Subaru (Japan), is an open star cluster containing middle-aged stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

[Info from Wikipedia]

ZWO ASI1600MC-Pro with Baader IR/UV cut filter
Explore Scientific ED80
Celestron AVX Mount, guided
105 minutes of integration time

Shot from the L&A County Dark Sky Viewing Area in Erinsville, Ontario

Posted by Dark Arts Astrophotography on 2018-08-11 20:24:48

Tagged: , astrophotography , astronomy , space , Sky , stars , star , science , m45 , Subaru , subarudarksky , Pleiades , Cluster , Messier

TEXAS RANCH ENTRANCE

TEXAS RANCH ENTRANCE

Photo taken by Linden Hudson in 2003 in the Texas Hill Country not far from La Grange Texas.

Who is Linden Hudson?

CLASSICBANDS DOT COM said: “According to former roadie David Blayney in his book SHARP DRESSED MEN: sound engineer Linden Hudson co-wrote much of the material on the ZZ Top ELIMINATOR album.” (end quote)

(ZZ Top never opted to give Linden credit, which would have been THE decent thing to do. It would have helped Linden’s career as well. The band and management worked ruthlessly to take FULL credit for the hugely successful album which Linden had spent a good deal of time working on. Linden works daily to tell this story. Also, the band did not opt to pay Linden, they worked to keep all the money and they treated Linden like dirt. It was abuse. Linden launched a limited lawsuit, brought about using his limited resources which brought limited results and took years. No one should treat the co-writer of their most successful album like this. It’s just deeply fucked up.)
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(see full story at Linden’s website: www.linden-hudson.com/birth-of-the-zz-top-eliminator-album )
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Hear the original ZZ Top ELIMINATOR writing/rehearsal tapes made by Linden Hudson and Billy Gibbons at: www.flickr.com/photos/152350852@N02/35711891332/in/photol…
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LICKLIBRARY DOT COM (2013 interview) ZZ TOP’S BILLY GIBBONS SAID: “the Eliminator sessions in 1983 were guided largely by another one of our associates, Linden Hudson, a gifted engineer, during the development of those compositions.” (end quote) (Gibbons admits this after 30 years, but offers Linden no apology or reparations for lack of credit/royalties)
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MUSICRADAR DOT COM (2013 interview with ZZ Top’s guitarist Billy Gibbons broke 30 years of silence about Linden Hudson introducing synthesizers into ZZ Top’s sound.) Gibbons said: “This was a really interesting turning point. We had befriended somebody who would become an influential associate, a guy named Linden Hudson. He was a gifted songwriter and had production skills that were leading the pack at times. He brought some elements to the forefront that helped reshape what ZZ Top were doing, starting in the studio and eventually to the live stage. Linden had no fear and was eager to experiment in ways that would frighten most bands. But we followed suit, and the synthesizers started to show up on record.” (once again, there was no apology from ZZ Top or Billy Gibbons after this revelation).
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TEXAS MONTHLY MAGAZINE (Dec 1996, By Joe Nick Patoski): "Linden Hudson floated the notion that the ideal dance music had 124 beats per minute; then he and Gibbons conceived, wrote, and recorded what amounted to a rough draft of an album before the band had set foot inside Ardent Studios."
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FROM THE BOOK: SHARP DRESSED MEN – ZZ TOP (By David Blayney) : "Probably the most dramatic development in ZZ Top recording approaches came about as Eliminator was constructed. What had gone on before evolutionary; this change was revolutionary. ZZ Top got what amounted to a new bandsman (Linden) for the album, unknown to the world at large and at first even to Dusty and Frank."
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CNET DOT COM: (question posed to ZZ Top): Sound engineer Linden Hudson was described as a high-tech music teacher on your highly successful "Eliminator" album. How much did the band experiment with electronic instruments prior to that album?
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THE HOUSTON CHRONICLE, MARCH 2018: "Eliminator" had a tremendous impact on us and the people who listen to us," says ZZ Top’s bass player. Common band lore points to production engineer Linden Hudson suggesting that 120 beats per minute was the perfect rock tempo, or "the people’s tempo" as it came to be known.
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FROM THE BOOK: SHARP DRESSED MEN – ZZ TOP by David Blayney: (page 227): "…the song LEGS Linden Hudson introduced the pumping synthesizer effect."
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(Search Linden Hudson in the various ZZ Top Wikipedia pages which are related to the ELIMINATOR album and you will find bits about Linden. Also the main ZZ Top Wikipedia page mentions Linden. He’s mentioned in at least 7 ZZ Top related Wikipedia pages.)
+++
FROM THE BOOK: SHARP DRESSED MEN – ZZ TOP By David Blayney: "Linden found himself in the position of being Billy’s (Billy Gibbons, ZZ Top guitarist) closest collaborator on Eliminator. In fact, he wound up spending more time on the album than anybody except Billy. While the two of them spent day after day in the studio, they were mostly alone with the equipment and the ideas."
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FROM THE BOOK: BEER DRINKERS & HELL RAISERS: A ZZ TOP GUIDE (By Neil Daniels, released 2014): "Hudson reportedly had a significant role to play during the planning stages of the release (ELIMINATOR)."
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FROM THE BOOK: ZZ TOP – BAD AND WORLDWIDE (ROLLING STONE PRESS, WRITTEN BY DEBORAH FROST): "Linden was always doing computer studies. It was something that fascinated him, like studio technology. He thought he might understand the components of popular songs better if he fed certain data into his computer. It might help him understand what hits (song releases) of any given period share. He first found out about speed; all the songs he studied deviated no more than one beat from 120 beats per minute. Billy immediately started to write some songs with 120 beats per minute. Linden helped out with a couple, like UNDER PRESSURE and SHARP DRESSED MAN. Someone had to help Billy out. Dusty and Frank didn’t even like to rehearse much. Their studio absence wasn’t really a problem though. The bass and drum parts were easily played with a synthesizer or Linn drum machine." (end quote)
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FROM THE BOOK: "SHARP DRESSED MEN – ZZ TOP" BY DAVID BLAYNEY: "After his quantitative revelations, Linden informally but instantly became ZZ Top’s rehearsal hall theoretician, producer, and engineer." (end quote)
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FROM THE BOOK: "ZZ TOP – BAD AND WORLDWIDE" (ROLLING STONE PRESS, BY DEBORAH FROST): "With the release of their ninth album, ELIMINATOR, in 1983, these hairy, unlikely rock heroes had become a pop phenomenon. This had something to do with the discoveries of a young preproduction engineer (Linden Hudson) whose contributions, like those of many associated with the band over the years, were never acknowledged."
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FROM THE BOOK: ​SHARP DRESSED MEN – ZZ TOP (By DAVID BLAYNEY) : "The integral position Linden occupied in the process of building El​iminator was demonstrated eloquently in the case of song Under Pressure. Billy and Linden, the studio wizards, did the whole song all in one afternoon without either the bass player or drummer even knowing it had been written and recorded on a demo tape. Linden synthesized the bass and drums and helped write the lyrics; Billy did the guitars and vocals."
+++
FROM THE BOOK: "TRES HOMBRES – THE STORY OF ZZ TOP" BY DAVID SINCLAIR (Writer for the Times Of London): "Linden Hudson, the engineer/producer who lived at Beard’s house (ZZ’s drummer) had drawn their attention to the possibilities of the new recording technology and specifically to the charms of the straight drumming pattern, as used on a programmed drum machine. On ELIMINATOR ZZ Top unveiled a simple new musical combination that cracked open a vast worldwide market.
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FROM THE BOOK: "SHARP DRESS MEN – ZZ TOP" BY DAVID BLAYNEY: "ELIMINATOR went on to become a multi-platinum album, just as Linden had predicted when he and Billy were setting up the 124-beat tempos and arranging all the material. Rolling Stone eventually picked the album as number 39 out of the top 100 of the 80’s. Linden Hudson in a fair world shoud have had his name all over ELIMINATOR and gotten the just compensation he deserved. Instead he got ostracized."
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FROM THE BOOK: ​SHARP DRESSED MEN – ZZ TOP by DAVID BLAYNEY: "He (Linden) went back with the boys to 1970 when he was working as a radio disc jocky aliased Jack Smack. He was emcee for a show ZZ did around that time, and even sang an encore tune with the band, perhaps the only person ever to have that honor." (side note: this was ZZ Top’s very first show).
+++
FROM THE BOOK: "SHARP DRESSED MEN – ZZ TOP" BY DAVID BLAYNEY: "Linden remained at Frank’s (ZZ Top drummer) place as ZZ’s live-in engineer throughout the whole period of ELIMINATOR rehearsals, and was like one of the family… as he (Linden) worked at the controls day after day, watching the album (ELIMINATOR) take shape, his hopes for a big step forward in his production career undoubtably soared. ELIMINATOR marked the first time that ZZ Top was able to rehearse an entire album with the recording studio gadgetry that Billy so loved. With Linden Hudson around all the time, it also was the first time the band could write, rehearse, and record with someone who knew the men and the machines. ZZ Top was free to go musically crazy, but also musically crazy like a fox. Linden made that possible too."
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FROM THE BOOK "ZZ TOP – BAD AND WORLDWIDE" (ROLLING STONE PRESS, BY DEBORAH FROST, WRITER FOR ROLLING STONE MAGAZINE): "… SHARP DRESSED MAN which employed Hudson’s 120 beat-per-minute theory. The feel, the enthusiasm, the snappy beat and crisp clean sound propelled ELIMINATOR into the ears and hearts of 5 million people who previously could have cared less about the boogie band of RIO GRANDE MUD."
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ULTIMATECLASSICROCK DOT COM: "This new melding of styles was encouraged by Hudson, who served as a kind of pre-producer for ​EL LOCO … … Hudson helped construct ZZ Top drummer Frank Beard’s home studio, and had lived with him for a time. That led to these initial sessions, and then a closer collaboration on 1983’s ​ELIMINATOR.
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FIREDOGLAKE DOT COM: "I like Billy Gibbons’ guitar tone quite a lot, but I lost all respect for them after reading how badly they fucked over Linden Hudson (the guy who was the brains behind their move to include synthesizers and co-wrote most of their career-defining Eliminator record)."
+++
EMAIL FROM A ZZ TOP FAN TO LINDEN (One Of Many): "I write you today about broken hearts, one is mine and one is for you. I have been a ZZ Top fan since I was 6 years old. I purchased ELIMINATOR vinyl from Caldors in Connecticut with the $20 my grandma gave me for my birthday. I will spare the #1 fan epic saga of tee shirts, harassing Noreen at the fan club via phone weekly for years, over 40 shows attended. Posters, non stop conversation about the time I have spent idolizing this band, but more Billy G, as he has seemed to break free of the Lone Wolf shackles and it became more clear this was his baby. In baseball I was Don Mattingly’s #1 fan, Hershel Walker in football, Billy Gibbons in music. What do these individuals have in common? They were role models. Not a DUI, not a spousal abuse, not a drug overdose, not a cheater. Until I read your web page. I read Blayney’s book around 1992 or so, I was in middle school and I was familiar with your name for a long time. I didn’t realize you suffered so greatly or that your involvement was so significant. It pains me to learn my idol not only cheated but did something so wrong to another being. I now know this is where tall tales and fun loving bullshit and poor morals and ethics are distinguished and where I would no longer consider myself to look up to Billy. I love to joke and I love credit but I have always prided myself on ethics and principles… I hold them dear. I wanted to say, the snippet of UNDER PRESSURE you played sounded very new wave and I may like it more than the finished product. Well that’s all. You have reached ZZ Top’s biggest fan and I can let others know. Bummer. Cheers and good luck. James."​

Posted by lindenhud1 on 2017-12-11 02:30:11

Tagged: , texas ranch , entrance , sign , lone star , horns , god bless texas sign , sky , star , lone_star_state , ranch_gate , bull_horns , blue_sky , texas_sky , usa , america , god_bless_texas , ranch_entry , texas_gate , texas_star , star_of_texas , texas_star_above_gate , gate , entry , steer_horns , united_states , symbol , cow_horns

Resistance Ski Speeder (1)

Resistance Ski Speeder (1)

Took a break from speeder bike making so I could finally edit these pictures 😉

While I think the Ski Speeder’s design is a bit too close to real-world aircraft, I do like it quite a bit. It was certainly interesting to build in any case, I’ve never made a real-world aircraft before (or rather, anything so close to one) so it was strange to find myself building corsair-like wings and a tubular fuselage with a tail/rudder. I also wanted to explore some new-to-me Lego techniques to really push myself into unknown territory. This meant using stacks of technic liftarms for the wings which I was quite pleased with considering I usually avoid using technic in any significant way 🙂

I was planning on making a section of Crait’s surface and a build for the red dust but I soon realised I’d need to build quite a substantial amount to look right with the wide model. Instead I went for a stylised computer generated background which I almost prefer as it makes the model stand out a bit better.

A big thanks to majortom whose Ski speeder inspired quite a few bits and pieces of my own including: fence pieces on the engine section, technic wheel rim for the tail and of course the outline of his cockpit area which was the basis of my design. And thanks to my buddy Kit Bricksto who kindly gave his opinion on the model during its construction 🙂

Let me know what you think, feedback good or bad is appreciated as always 😀

Posted by Inthert on 2018-02-11 14:46:01

Tagged: , Lego , moc , star , wars , last , Jedi , Crait , resistance , ski , speeder , skimmer , ship , salt , wings , tail , rudder , blue , weapons , pod , cockpit , engine , airplane , sky , aircraft

M45- The Pleiades Cluster

M45- The Pleiades Cluster

The Pleiades, also known as M45, the Seven Sisters or Subaru (Japan), is an open star cluster containing middle-aged stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster is now known to be an unrelated dust cloud in the interstellar medium, through which the stars are currently passing. Computer simulations have shown that the Pleiades was probably formed from a compact configuration that resembled the Orion Nebula. Astronomers estimate that the cluster will survive for about another 250 million years, after which it will disperse due to gravitational interactions with its galactic neighborhood.

[Info from Wikipedia]

Nikon D7000
Explore Scientific ED80
Celestron AVX Mount
9 x 120 second exposures @ ISO 1600

Shot from the North Frontenac Township Dark Sky Preseve near Plevna, Ontario

Posted by Dark Arts Astrophotography on 2016-08-28 16:26:41

Tagged: , astrophotography , astronomy , space , stars , Sky , star , Cluster , Pleiades , Subaru , night , Nebula , nature , natur

Blue space nebula

Blue space nebula

Blue space nebula as abstract background

Posted by Renato Gurgel on 2011-01-10 01:27:19

Tagged: , blue , purple , magenta , nebula , star , space , night , astronomy , field , way , milky , bright , galaxy , fractal , backgrounds , sky , light , outer , glowing , dark , science , dust , infinity , awe , abstract , cluster , looking , forecasting , deep , glitter , rendering , black , computer , illustration , swirl , alien , ethereal , eternity , cosmos , astral , natural , fantasy

V1247 Orionis

V1247 Orionis

Edited European Southern Observatory image of the star V1247 Orionis, set in a ring of dust and gas.

Original caption: This image from the Atacama Large Millimeter/submillimeter Array (ALMA) shows V1247 Orionis, a young, hot star surrounded by a dynamic ring of gas and dust, known as a circumstellar disc. This disc can be seen here in two parts: a clearly defined central ring of matter and a more delicate crescent structure located further out.

The region between the ring and crescent, visible as a dark strip, is thought to be caused by a young planet carving its way through the disc. As the planet orbits around its parent star, its motion creates areas of high pressure on either side of its path, similar to how a ship creates bow waves as it cuts through water. These areas of high pressure could become protective barriers around sites of planet formation; dust particles are trapped within them for millions of years, allowing them the time and space to clump together and grow.

The exquisite resolution of ALMA allows astronomers to study the intricate structure of such a dust trapping vortex for the first time. The image reveals not only the crescent-shaped dust trap at the outer edge of the dark strip, but also regions of excess dust within the ring, possibly indicating a second dust trap that formed inside of the potential planet’s orbit. This confirms the predictions of earlier computer simulations.

Dust trapping is one potential solution to a major stumbling block in current theories of how planets form, which predicts that particles should drift into the central star and be destroyed before they have time to grow to planetesimal sizes (the radial drift problem).

Links
Science paper
Credit:
ALMA (ESO/NAOJ/NRAO)/S. Kraus (University of Exeter, UK)

Posted by sjrankin on 2017-10-17 01:24:56

Tagged: , 17 October 2017 , Edited , ESO , European Southern Observatory , V1247 Orionis , Star , Dust , Gas , Ring

V1247 Orionis, variant

V1247 Orionis, variant

Edited European Southern Observatory image of the star V1247 Orionis, set in a ring of dust and gas. Color/processing variant.

Original caption: This image from the Atacama Large Millimeter/submillimeter Array (ALMA) shows V1247 Orionis, a young, hot star surrounded by a dynamic ring of gas and dust, known as a circumstellar disc. This disc can be seen here in two parts: a clearly defined central ring of matter and a more delicate crescent structure located further out.

The region between the ring and crescent, visible as a dark strip, is thought to be caused by a young planet carving its way through the disc. As the planet orbits around its parent star, its motion creates areas of high pressure on either side of its path, similar to how a ship creates bow waves as it cuts through water. These areas of high pressure could become protective barriers around sites of planet formation; dust particles are trapped within them for millions of years, allowing them the time and space to clump together and grow.

The exquisite resolution of ALMA allows astronomers to study the intricate structure of such a dust trapping vortex for the first time. The image reveals not only the crescent-shaped dust trap at the outer edge of the dark strip, but also regions of excess dust within the ring, possibly indicating a second dust trap that formed inside of the potential planet’s orbit. This confirms the predictions of earlier computer simulations.

Dust trapping is one potential solution to a major stumbling block in current theories of how planets form, which predicts that particles should drift into the central star and be destroyed before they have time to grow to planetesimal sizes (the radial drift problem).

Links
Science paper
Credit:
ALMA (ESO/NAOJ/NRAO)/S. Kraus (University of Exeter, UK)

Posted by sjrankin on 2017-10-17 01:24:56

Tagged: , 17 October 2017 , Edited , ESO , European Southern Observatory , V1247 Orionis , Star , Dust , Gas , Ring