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The unique planetary nebula NGC 2818 is nested inside the open star cluster NGC 2818A. Both the cluster and the nebula reside over 10,000 light-years away, in the southern constellation Pyxis (the Compass).
NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster. Open clusters, in general, are loosely bound and they disperse over hundreds of millions of years. Stars that form planetary nebulae typically live for billions of years. Hence, it is rare that an open cluster survives long enough for one of its members to form a planetary nebula. This open cluster is particularly ancient, estimated to be nearly one billion years old.
09-05
Osterholz-Scharmbeck, Germany, Canon EOS 600Dα, Ikharos ED refractor D = 80 mm f/5.6, 118 exposures of 30 s each at 1600 ISO, tracking only. Bayer averaged and binned twofold again; curve stretch. Named Helical nebula. Also known as Caldwell 63.
I have updated this to remove Gomez's Hamburger, which is not a planetary nebula but rather a protoplanetary disk. The picturesque Hen 2-437 has taken its place. See previous version of the collage, now renamed "99 Planetary Nebulas" (I could put "And a Protoplanetary Disk" as a subtitle, hehe!) here.
Also, Flickr seems to be allowing me to upload the 10000 pixel wide version now. The previous one was uploaded at half that size. It was bugging out or something last time I tried.
Here is a copy of the original description for your convenience, since it still applies:
Inspired by insect illustration posters, this is a large collage of planetary nebulas I put together bit by bit as I processed them. All are presented north up and at apparent size relative to one another--I did not rotate or resize them in order to satisfy compositional aesthetics (if you spot any errors, let me know). Colors are aesthetic choices, especially since most planetary nebulas are imaged with narrowband filters.
How many of them can you identify?
This is what crater Orontius and its surroundings looked like last night (09/09/16).
Orontius is a 122km diameter crater in the southern highlands of the Moon's near side. As seen, this part of the moon is really cratered. The Eastern part of Orontius is overlain by Huggins crater, which is also overlain by Nasidderin crater. This last one limits Miller crater.
Telescope: D=150mm, F=1200mm
Eyepiece: 7mm
Disintegrating Planetary Existence.
La disminución de las criaturas extrínsecos convertibles verdades divinas cambiantes esencia inmutable,
approchant la compréhension des connaissances éminence pénétrante enluminures effets lointains,
confortatus est momenti materia nota immensitate species praedicta connaturalitate,
Vorfahren berühmten Jahrhunderte böswillige bitteren Herzen ständigen Kriege glühender Chancen Macht umgibt,
不公正的邪惡寬大嚴酷的教訓唆使暴徒脾氣敵人憤怒鞭笞孵化地塊,
блуждающих несбалансированным ОПЕРАЦИЙ безграничные основы против раструбили будущих неблагоприятных подарков,
تبقى المتمردين أصوات تشتبك قادة سنوات يرثى لها معايير الهمجية المشينة القوانين المعطلة داخل,
εξαφανίστηκε συμβούλια έσβησε το πρωί προσευχές έκπληκτος ευκαιρία για αναδύεται σφαίρες λήθαργο λόγους,
厳粛な基準は、ペノンが高いボディをヒービング武装法律を行進恐ろしい文字を破壊上昇します.
Steve.D.Hammond.
As used in my two recent models Euclid R-170 mining truck and Marathon LeTourneau L-1200 wheel loader.
The planetary drive makes use of the Power Miners wheels with 48-tooth ring gear. There is a central 16-tooth gear, the sun gear, driven by the differential axle and four surrounding 16-tooth planetary gears, thus resulting in a gear ratio of 1:3.
The wheel hubs are each made of two of the Power Miners wheels with the spokes facing each other. The rubber tires are then forced on this self-made hubs.
Gidge is Interplanetary In:
Lips: alaskametro<3 "Space Unicorn" lipstick 03 FIT B
Eyeshadow: alaskametro<3 "Space Unicorn" eyeshadow 01 FIT A
Necklace: (Yummy) Serenity Layered Necklace Set (Gen.X) Classic
Body: -Belleza- Gen.X Classic Body (SL UVS) PG V1.2
Head: / HEAD / lel EvoX RAVEN 3.1
Dress: Blueberry - Secret Spell - Dress - Genx Classic
Shoes: Blueberry - Secret Spell - Heels - GenX Classic
Blueberry - Secret Spell - Panties: Panties - GenX Classic
Hair: Exile:: Polly (B)
Earrings: piccolo.// polly panda earring
Pop: piccolo.// polly panda pop
Skin: alaskametro<3 "Lily" skin Tone 2 Fit B - lgt brow (mesh bodies)
Shot on Location at: maps.secondlife.com/secondlife/Le%20Monde%20Magique/123/2...
In memory of Nate "Nnenn" Nielson.
Will also be on display at BrickWorld in the Missing Man Formation.
From upper left to lower right - conjunction of Mars, Moon and Venus. Taken Stockport UK. Taken 2/1/2017
Jupiter and Saturn dance aroun each other, appearing close in the sky on three consecutive days, December 20, 21, and 22, 2020. Various exposures were combined to reveal detail on the planets and make their brightest moons visible.
Tech: Nikon D850, Celestron C5 (1,250mm f/10), iOptron CEM25P drive. Multiple frames with three exposure times: 1/25 sec., ISO 250, 4 sec., ISO 4000, 8 sec., ISO 6400, processed in Lightroom, stacked in Photoshop (registered and median-combined).
Composite of first images captured with new camera. Saturn captured 6/16/2015
Venus and Jupiter captured 6/17/2015
ASI120MC-S
Celestron CPC800 XLT
This is a stitched panorama of the current six planet lineup in our night sky as seen from my backyard on 27 January 2025, Two planets in the lineup that are not visible are Uranus and Neptune as they are too dim to register in the photo. Neptune is however located just a little left of Venus and Uranus is midway between jupiter and the Pleiades open star cluster midway top in the photo
“Planetary man”,
(influence of the seven planets on different regions of the human body)
☉ sun,
☾ Moon
☿ Merkur,
♀ Venus,
♂Mars,
♃ Jupiter,
♄ Saturn
according to Agrippa von Nettesheim (1510)
[caption by KBW],
engraving from Agrippa von Nettesheim,
De occulta philosophia, 1533 Book II, chapter XXVII.
Aby Warburg - Mnemosyne plate B9 - zodiac man -
Agrippa von Nettesheim Seite 178
A little deeper we go into planetary imaging. This image was shot with a dedicated mono video camera. I imaged through a series of filters (luminance, red, green, blue or LRGB). This image was caputred on 29-APR-2015.
Jupiter actually rotates very fast, a complete "day" lasts under 10 hours. Due to this, the video for each channel doesn't line up with the previous, even though they were separated by mere minutes. There's software for everything though, and here each of the channels were "derotated" back to a common position. All this helps achieve a higher level of detail.
The luminance frames were shot at roughly 170 frames per second. This is almost 7 times the framerate of my previous attempt. That, combined with a focal length of 4600mm gives a fairly pleasing result. Still, at this scale the planet is only 225 pixels across. What you see here came from a mountainous 5 GB of data, all reduced down to this 58 kB final shot! Craziness.
It's a pretty challenging process and one than I am only just starting to learn. Enjoy!
1. NGC 7084 in Ha , 2. M57 Ha at f/9 no bin 720 seconds, 3.M27 in Ha, 4. M57 tricolor work, 5. Image18, 6. NGC 7139 PN in Cepheus, 7. M97 in OIII and Ha, 8. NGC6826, 9. ??
And I forgot;
www.flickr.com/photos/daveh56/4117350728/in/set-721576235...
Now I am hooked...
Playing around with two flashlight-wand thingys (the technical term, I'm sure). David (who was the flashlight-wand man) thought this one looked a bit like Saturn's rings.
129/365?
RGB process (and others) of this type of image - using specific software
Shooting : I telescope
Process: Thomas Thomopoulos
Since I was missing some data along the eastern limb for a lunar mosaic, I decided to salvage the effort, and make a planetary mosaic that was befitting to a quote by Anaxagoras. It was chosen for Star Quote of the Day. www.starquoteoftheday.com/2014/08/09/star-quote-of-the-da...
Peace and love to all, this planet has passed, this species has come a long way. "Welcome and find peace here."
When I spend enough time gazing into the interstellar surface of the northern red belt (Fomitopsis mounceae), I see the rings of planets.
Groton, VT