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Celestron Triple RASA11 Astrograph on the 10micron GM3000 mount

In this video I show the build process of my Celestron Triple RASA11 Astrograph.
This 350kg telescope consists of three Celestron RASA11 v1 Telescopes, each with 620mm focal length and fast f2.2 on an Italian 10micron GM3000HPS Observatory grade mount, permanently installed in my backyard Observatory.
I show the different stages of this setup, starting with the installation of the huge 10micron mount and the 120kg octagonal steel pier, through the different telescope installations to the final stage with three RASA11 Astrographs.
My garden observatory here in the Ruhr area in Germany is in a light-polluted Bortle 7 zone where you can only see the brightest stars in the sky.
In order to do astrophotography there and to be able to take pictures of fainter objects, you need fast optics and very long exposure times to be able to suppress the background noise of the sky background as effectively as possible. The fast RASA optics help with this.
In addition, my goal was to have to change filters as rarely as possible. Due to the construction of the RASA Astrographs, you cannot use an electronic filter wheel, but have to change the filters manually. This is very time-consuming with R,G,B, Ha, OII, SII and Clear filters.
With three RASAs, the effort is much less, especially since one of the RASAs is equipped with a ZWO ASI2600MC on-shot colour camera.
Thus, per 8h night, I can collect a total of 8h colour data and 2x8h monochrome data, i.e. 24h total exposure time.
With this set-up I can take the Bortle 7 challenge!
For more info and astro images please visit my website:
www.theinvisibleuniverse.com
More astro videos can be found on my KZread channel
/ @mike-eg6df
Music by
State Azure, Greg Foat and Rodney Holmes

Пікірлер: 138

  • @OGParzoval
    @OGParzoval10 ай бұрын

    Dude said hold my wallet.

  • @drunk_astronomy

    @drunk_astronomy

    10 ай бұрын

    😂😂😂

  • @teslastellar

    @teslastellar

    10 ай бұрын

    Indeed 😂

  • @TheAstrocast

    @TheAstrocast

    10 ай бұрын

    true - but he did the hard work. all that fabrication and thought took a lot more effort than just paying for gear.

  • @anata5127

    @anata5127

    9 ай бұрын

    @@TheAstrocast All that fabrications require tools that cost more than entire rig.

  • @andreww9252

    @andreww9252

    7 ай бұрын

    I assume you are not married to a significant other?

  • @renaldolama9517
    @renaldolama951710 ай бұрын

    Man and I thought I was a nerd with my 6" refractor and 8" SCT and Computer Science degree...bro just took it to another level.

  • @mrtransistor6173
    @mrtransistor617311 күн бұрын

    thats one of the most majestic telescopes I've seen.

  • @4D4STR4
    @4D4STR42 ай бұрын

    Probably the most satisfying video on KZread. Installing this under a bortle 7 sky definitely shows some determination

  • @KillrobPlays
    @KillrobPlays10 ай бұрын

    What a monster project and amazing results. Now you just need that one night where the entire Ruhrgebiet has a big blackout on a perfectly clear and still night while you're tackling a challenging target. :D Three scopes is such a great move. Enjoy! :)

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Yes, I need a one night of blackout now, the power generator is ready to go! 🤣

  • @KillrobPlays

    @KillrobPlays

    10 ай бұрын

    I expected no less! :D @@Mike-eg6df

  • @StevenMorrisPhotography
    @StevenMorrisPhotography10 ай бұрын

    Wahoo another Triple RASA setup, great video. I love the engineering that's gone into your design, very neat and tidy setup.... Congratulations!

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Thank you, appreciate. Your triple RASA8 setup is amazing as well!

  • @anata5127

    @anata5127

    9 ай бұрын

    I knew that you will like it! Now, you need mount like his, printer and metal cutting CNC. You may need to sell house to get that CNC.

  • @StevenMorrisPhotography

    @StevenMorrisPhotography

    9 ай бұрын

    @@anata5127 🤣🤣🤣 sell my house

  • @claynabess6079
    @claynabess607910 ай бұрын

    few years back, i was doing that with 3 60 mm refractors.. just never got around to finishing the project before i got a classic 10 inch red dobsonian, but hey nice to see someone make it all happen with 3 11" rasa, amazing setup, thanks for sharing!

  • @mistaskate8715
    @mistaskate871510 ай бұрын

    That is absolutely insane! Well done, and clear skies to you sir!

  • @Helpingbos
    @Helpingbos10 ай бұрын

    I Never felt so poor 😢

  • @theccieguy
    @theccieguy10 ай бұрын

    Breathtaking and sublime. Truly, superlatives fail, and seem superfluous. And that's not hyperbole.

  • @Miguel_Noppe
    @Miguel_Noppe10 ай бұрын

    Amazing work ! I just got my RASA 11, it looks big on my GM2000, I can't imagine 3 on one mount !

  • @vmir88
    @vmir88Ай бұрын

    Ohhhhh, I almost cry from happiness when I see such a setup

  • @Upuauta
    @Upuauta10 ай бұрын

    WoW! Das ist wirklich beachtlich. Und deine Ergebnisse sind fantastisch. Und das aus dem Ruhrgebiet heraus. Ich bin im östlichen Ruhrgebiet am Kamener Kreuz. Da bin ich zwar am Rand des Ruhrgebietes aber es ändert sich nichts an der Luftverschmutzung. Bin gespannt was du uns noch so zeigst.

  • @marpro1824
    @marpro182410 ай бұрын

    What an incredible setup and engineering. Cheers from Poland

  • @ruthlessrog1
    @ruthlessrog15 ай бұрын

    Bro, heavy duty setup just on the thumbnail... then you bust out a full shop where you mill your hardware?! Bravo this is goals

  • @GreatDiver69
    @GreatDiver6910 ай бұрын

    Pretty sure it'd cost a whole lot less to just move to a Bortle 2 site. Only saying that because I'm super impressed by and a tad envious of your skills

  • @OGParzoval
    @OGParzoval10 ай бұрын

    Jokes aside that is very impressive. Always handy when you have all the fabrication stuff and the know how to use it. I like the idea of 3d printing the dew shields and love your sky shed setup. Just took the leap after 15 years of somedays into narrowband astrophotography.

  • @no_mercy4183
    @no_mercy41836 ай бұрын

    Truly amazing work ,and a very expensive one at that, of you can take this setup (somehow, dont know how 😂) to a bortle 1-3 class area, your mind will get blown up along with us 😂

  • @RegulusRemains
    @RegulusRemains7 ай бұрын

    what a dream system, beautiful all around.

  • @derekkuhl
    @derekkuhl3 ай бұрын

    Very beautiful video that is very well done. Chapeau! Amazing telescope and amazing photography!

  • @zeendaniels5809
    @zeendaniels58099 ай бұрын

    This is impressive... Congratulations on your setup. Next challenge: Take it piece by piece to a dark place! Living in Europe... Iceland, maybe? Just a thought 😁👌🏼

  • @jameskirk172
    @jameskirk17210 ай бұрын

    Well done sir. What a creative idea using a tri RASA configuration. I’ve been thinking about this idea but with between 2 to 4 5”-6” apos. But I could never achieve f/2.2 with those. I could never do this with an AP 130 because getting one is like interstellar travel much less signing up for 2 more. I live in bortle 4 skies so I have some good sky to work with at least. Currently just capturing say NGC 206 up close in detail has taken about 3 days of imaging all night. With a setup like this I could do it possibly in one night. Might be looking at Stellarvue, TEC or Tak-but these are so much faster. You’ve given me a lot to think about. My original idea is to portablize this kind of Astro graph, I’ve got super dark skies about an hour away. Still looking at an AP1600GTO.

  • @t0lex14
    @t0lex1410 ай бұрын

    That is insane setup, dammmm.

  • @matthewkendall5235
    @matthewkendall52353 ай бұрын

    Incredibly impressive!!!

  • @EricMilewski
    @EricMilewski10 ай бұрын

    WOW! congrats, that is a dream setup 😲

  • @gfargonetoo1
    @gfargonetoo110 ай бұрын

    Oh wow, that is such an amazing build!

  • @tankerdude2683
    @tankerdude26839 ай бұрын

    Im super jealous! Makes my redcat 71 seem so tiny. Very nice setup! 👍

  • @RobertKarlBerta
    @RobertKarlBerta10 ай бұрын

    Rather than 3 large scopes some have gone to a battery of smaller refractors....I saw one with 9-4" refractors that was used professionally. This is an impressive project and the results are great....I would have expected some major issues with alignment, synchronization, etc.

  • @anata5127

    @anata5127

    9 ай бұрын

    You are right. The same results could be achieved with lesser integration, one scope and … darker skies

  • @Fresees
    @Fresees10 ай бұрын

    Ein absolut wildes Gerät, Hut ab !

  • @Tobi-ln2cj
    @Tobi-ln2cj10 ай бұрын

    Hallo Mike WOW! Was für ein Setup

  • @fescarat
    @fescarat10 ай бұрын

    Excelent work my friend.... congratz

  • @tomangi845
    @tomangi84510 ай бұрын

    Fantastict pictures!!

  • @user-gp3hv9fz2d
    @user-gp3hv9fz2d2 ай бұрын

    Absolutely stunning.

  • @alexjeffery6932
    @alexjeffery693210 ай бұрын

    An amazing setup! Love it. Well done :)

  • @testboga5991
    @testboga59914 ай бұрын

    Wife divorces him: *worth it*

  • @jenshaun6424
    @jenshaun642410 ай бұрын

    Very impressive. I am from Bochum and also try to make pictures from my backyard. Will you be on the BoHeTa? Then we could have a coffee, maybe? 😎

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Thanks a lot! If I have time I will probably come to the BoHeTa again this year!

  • @Loris_remix
    @Loris_remix10 ай бұрын

    add three more, make a telescope minigun for rapid light collection

  • @miketronix
    @miketronix7 ай бұрын

    Am I dreaming! 😮

  • @yearningmice
    @yearningmice7 ай бұрын

    This was great, I would have loved to have a voice over or a font that was easier to read for the video.

  • @peterraymond3653
    @peterraymond365310 ай бұрын

    Awesome project and engineering. Thanks for sharing. Good choice with the RASA 11, many RASA 8's have bad primary mirror grinds (I have one) Subscribed 👍

  • @yourlocaldennys
    @yourlocaldennys10 ай бұрын

    Dayum let me hold one for you 🤯

  • @yayr3
    @yayr32 ай бұрын

    I'd say the next project should be an RV to drive it to dark skies and easily ramp off and on 😛

  • @debragibson3489
    @debragibson348910 ай бұрын

    I'ma lookin fer neighbors like you!!!

  • @andysPARK
    @andysPARK7 ай бұрын

    @13:17 beautiful

  • @RollingAu
    @RollingAu6 ай бұрын

    this is a godly set up

  • @jesuschrist2284
    @jesuschrist228410 ай бұрын

    This is amazing ty

  • @clearnightastro
    @clearnightastro10 ай бұрын

    Sehr beeindruckendes Setup und sehr saubere Arbeit! Eigentlich eine Schande, so ein tolles Setup in ein Bortle 7 Gebiet zu stellen, ich fühle mit dir 🙄 Aachen ist leider nicht viel besser

  • @TheAstrocast
    @TheAstrocast10 ай бұрын

    Shockingly good quality. AMAZING job. Now here's my question, CAN I GET THAT?

  • @DawgcityClev
    @DawgcityClev11 күн бұрын

    What in the actual (*insert curse word here*) is going on? This is SICK!!!

  • @pianoE
    @pianoE10 ай бұрын

    The JWST at home:

  • @BehindEarthTamil
    @BehindEarthTamil4 ай бұрын

    I really enjoyed this video sir ❤ Also BGM 💐

  • @beautifully.star.glittering
    @beautifully.star.glittering10 ай бұрын

    incredible technology. triplet Astrocamera!!

  • @ivanpierce479
    @ivanpierce47910 ай бұрын

    That is the most ridiculous thing I've ever seen. And I love it and want one now. Lol

  • @ENKI7477
    @ENKI74774 ай бұрын

    Continue your channel

  • @andreww9252
    @andreww92527 ай бұрын

    Absolutely amazing ! How do you integrate all the images, by stacking them all in the one post-processing software? Also, would a multi-rig like this work with similar aperture scopes but not the same work? Well done.

  • @andysPARK
    @andysPARK7 ай бұрын

    Wow

  • @brunovespasiani4697
    @brunovespasiani469710 ай бұрын

    Hallo, ich habe schon einige verrückte Montagen gesehen, aber jetzt bist du in die Kategorie „Master“ gewechselt. achtung automatische Übersetzung ;) ;) ein kleines Augenzwinkern aus Frankreich

  • @Adrian_Astro
    @Adrian_Astro10 ай бұрын

    Bros just casually playing with 30k worth of telescopes

  • @anata5127
    @anata51279 ай бұрын

    It will be great to know Signal Noise Ratio (SNR can be measured in Pixinsight) for integrated files. Visually, I get similar pictures of the same targets with 5 times lesser integration, with single Tak Epsilon 130 from bortle 2.

  • @Mike-eg6df

    @Mike-eg6df

    9 ай бұрын

    Hi, the S/N of a stack of images through a clear filter with 20h integrated exposure time through the RASAs is about 2.191e+06 or 63.41 db according to Pixinsight. A factor of 5 is about what I would expect between a sky with bortle 2 and bortle 7. This is the unfortunate result of light pollution.

  • @anata5127

    @anata5127

    9 ай бұрын

    @@Mike-eg6df Great! Thanks. Factor is at least 12 for LRGB and 3 for narrow band. This was measured on identical targets with identical exposure profiles. Your SNR is extremely good from bortle 7. I never passed e+2. How do you convert that numbers in dB?

  • @Mike-eg6df

    @Mike-eg6df

    9 ай бұрын

    ​@@anata5127 The SNR is automatically calculated by a script in Pixinsight for an uncompressed 32-bit xisf image and converted to db. However, there are some db converters on the internet.

  • @anata5127

    @anata5127

    9 ай бұрын

    @@Mike-eg6df I don’t use script for getting in dB. But, I got converter dB = 10*logSNR. SNR is S/N with no units. I get only SNR in subframe selector.

  • @veselahladno8917
    @veselahladno891710 ай бұрын

    This project is crazy :D

  • @drunk_astronomy
    @drunk_astronomy10 ай бұрын

    I subscribed before I watched the video. Lol!!!

  • @dallas4269
    @dallas426910 ай бұрын

    wow

  • @imahol3
    @imahol310 ай бұрын

    Why cant you just buy a 20" reflector which will give you the same light collection and ~0.175 arc seconds more resolution?

  • @Sharpless2
    @Sharpless25 ай бұрын

    Holy moly thats an absolute beast and a dream rig. Realistically, how "easy" is it to overexpose the DSO itself with this?

  • @Tissschbaemer
    @Tissschbaemer6 ай бұрын

    Super

  • @t.a9822
    @t.a98226 ай бұрын

    👍

  • @andreaslehmann8815
    @andreaslehmann88157 ай бұрын

    Fantastic! Excuse my ignorance, could you use all three scopes simultaneously as an array, effectively creating a massive aperture?

  • @andreww9252

    @andreww9252

    7 ай бұрын

    Yes, I think it's a little like interferometry, several scopes spaced away from each other but gathering light or radio waves in an aperture the same as the distances involved. In this case, I believe it's the same as a really fast 33-inch scope (3x11inch).

  • @mauritzg1
    @mauritzg110 ай бұрын

    Wow!!!

  • @astrophotonics9470
    @astrophotonics94707 ай бұрын

    Impressive build, hopefully you are doing real Science with your system, such as unidentified NEO's, etc.

  • @user-kx3zl2qn6j
    @user-kx3zl2qn6j2 ай бұрын

    Очень интересно! Вы большой молодец!

  • @jurgenlemke4813
    @jurgenlemke48139 ай бұрын

    Ich bin auch gerade dabei meine GM3000 aufzurüsten mit 4 Teleskopen, allerdings alle viel kleiner. Ich wohne im Bergischen Land und kämpfe auch mit Lichtverschmutzung und seit Monaten mit schlechtem Wetter.

  • @Mike-eg6df

    @Mike-eg6df

    8 ай бұрын

    Yes, the bad weather here has been frustrating me for weeks too. It makes you want to beam your equipment to Chile quickly.🤔

  • @newqlar
    @newqlar9 ай бұрын

    There’s insane - then there’s this… 😮

  • @simonwalsh6804
    @simonwalsh68048 ай бұрын

    Mike - do you do all the CNC machining yourself or is this made by someone else? I am curious what level of expertise is needed for this in terms of designing and manufacturing. Many thanks for your input! Awesome system.

  • @Mike-eg6df

    @Mike-eg6df

    8 ай бұрын

    Hello, I did all the work on the milling machine and lathe myself. I bought the two machines especially for astronomy. However, these are not CNC machines, but purely manual milling and turning machines. You need a certain skill level to be able to use them. But if I can learn this, then surely everyone else can too.🙂

  • @simonwalsh6804

    @simonwalsh6804

    8 ай бұрын

    @@Mike-eg6df This is awesome - I am always looking for custom parts to improve the rigidity of my set up. Could you please provide the models of the milling and turning machines you purchased? It might be my next project to learn the basics of this myself. Many thanks for your response. Simon

  • @Mike-eg6df

    @Mike-eg6df

    8 ай бұрын

    Hello, I have an Optimum BF16 milling machine and a Bernardo Profi 450 S Vario, both rather small machines. I don't know if these machines are available in your country. However, I would recommend choosing the next larger machine for better rigidity.

  • @dorn885
    @dorn88510 ай бұрын

    Whats the advantage of having three telescopes beside having saved three times the needed time to observe a specific area?

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Another big advantage with this setup is, that I am able to make the best out if the rare clear nights here in Germany.

  • @southbronxny5727
    @southbronxny57276 ай бұрын

    Another question after re-watching, what is the rms total when guiding? What was your best rms?

  • @Z-add
    @Z-add3 ай бұрын

    Can you compare images from one rasa vs 3 rasa.

  • @michaelegert1284
    @michaelegert128410 ай бұрын

    How much better are those three c11 telescopes vs. One c14? I am a newb. No idea if that even is compareble😅

  • @southbronxny5727
    @southbronxny572710 ай бұрын

    Impressive setup. What were your exposure times for the individual frames?

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Sub-exposure time is between 3-6 min. Total exposure time is up to 66h.

  • @_vynd
    @_vynd10 ай бұрын

    And i am thinking for weeks about buying a 2600mm :D

  • @viniguez487
    @viniguez4879 ай бұрын

    How did you solve the star reflections? I have a single RASA 11 but am plagued by reflections while imaging Pleiades or Horsehead.

  • @Mike-eg6df

    @Mike-eg6df

    9 ай бұрын

    Hello, I have similar problems with star halos on bright stars. Star halos are probably caused by multiple reflections between the corrector, the filters and the image sensor. This is a disadvantage of these fast astrographs.

  • @jwalters4681
    @jwalters46815 ай бұрын

    Wow, nice setup! Would you mind sharing your .stl files for the dew shield and the spider vanes?

  • @epostiljon
    @epostiljon10 ай бұрын

    That looks like a serious mancave. What is the second tune, starts at about 2.00 ?

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    That is a tune of State Azure. Excellent Channel, check it out!

  • @timschaeffer6353
    @timschaeffer63539 ай бұрын

    Wundervolles Projekt Mike! Wo kann man dich bitte kontaktieren? Hätte ein par Fragen an dich. Dir noch viel Spaß mit dem Setup :) CS, Tim

  • @Mike-eg6df

    @Mike-eg6df

    9 ай бұрын

    Hi, auf meiner Website ist eine E-Mailadresse angegeben.

  • @HelenoPaiva
    @HelenoPaiva7 ай бұрын

    Please help me understand: although this is an impressive project, 3 11’ telescopes would gather roughly as much light as a 20’ scope, is my math right? - the idea is good because it is complicated to use a catadioptric 20’ scope, and also very expensive…. I reckon the largest sct telescope as of nowadays is a 33’ monster that cost roughly 1 million pounds to build. This setup may have cost around 10% of it…

  • @melin1969
    @melin19692 ай бұрын

    3x$5000 scopes on a $20,000 mount is affordable , boy im doing somthing wrong in life

  • @Azreal34
    @Azreal347 ай бұрын

    I am just going to sit over here in a corner and cry with my RedCat51 and EdgeHD 8. :(

  • @davidparadis490
    @davidparadis4908 ай бұрын

    Lukamoto has a video out explaining the diminishing return on overall time capture. Your thoughts on this?

  • @Mike-eg6df

    @Mike-eg6df

    8 ай бұрын

    Hello, as a first approximation you can say that the signal to noise ratio only increases with the square root of the exposure time. In other words, if I have an image with 40h exposure and a S/N of lets say 60db, I have to expose for another 40h to improve the S/N by a factor of 1.4, i.e. 3db to 63db. The gain is not great in practice and it is difficult to recognise the improvement in the image. However, if you have only gained e.g. 4h of image data with a S/N of e.g. 50db, it may well make sense to quadruple the exposure time to 16h with a manageable effort in order to double the S/N to 56db. Of course, this is only a simple calculation example and many other factors also influence the calculation.

  • @newforestobservatory9322
    @newforestobservatory932210 ай бұрын

    Great job!! What is your typical sub-exposure time??

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Thanks. Sub-exposure time is between 3 and 6 min without autoguiding for all three instruments.

  • @dimakowahl
    @dimakowahl10 ай бұрын

    ⭐⭐⭐⭐⭐ 👍👍👍👍✌️

  • @joeparham2889
    @joeparham28899 ай бұрын

    New house or new telescope hmm

  • @Nice2Much
    @Nice2Much10 ай бұрын

    if money don´t matters ...

  • @aneyesky
    @aneyesky6 ай бұрын

    Does this shoot the PAC-3’s?

  • @Arcteek
    @Arcteek6 ай бұрын

    Oh my, I'm curious about the wife's reaction budget wise.

  • @kirostar12
    @kirostar1210 ай бұрын

    Congratulations! This project is a lot of work and investment. But yes you need one clear night to capture one object in narrowband + RGB stars. I have two 8 inch scopes. One I am using to shoot long distances galaxies and nebula's with the reducer become 1400mm F7. Sometimes I am using the full 2000mm F 10. And the other one with my Hyperstar lens become 400mm F1.9 for large objects. I am controlling them with 2 laptops. My question is do you use the 3 scopes with one computer or you need 3 computers for the 3 telescopes? How do you do that? Thanks!

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Hi,thanks for viewing the video. I use indeed only one PC for controlling the complete setup. I am running three instances of N.I.N.A. to control the three cameras, the mount and the focus motors.

  • @andreww9252

    @andreww9252

    7 ай бұрын

    Are all the images then combined in one instance of NINA for post production of the single image?

  • @srikanthmeg
    @srikanthmeg10 ай бұрын

    What are you using to control tilt? Is it photon cage?

  • @Mike-eg6df

    @Mike-eg6df

    10 ай бұрын

    Hi, I use the Baader UFC Tilter to control the tilt for the full frame ASI6200. For the other two APS-C sized cameras tilt is not a big issue.

  • @luciennone6757
    @luciennone675710 ай бұрын

    Maybe in another lifetime😅

  • @yobb89
    @yobb892 ай бұрын

    id' probs would of got a cdk instead, each to thier own i guess

  • @astroindianx
    @astroindianx10 ай бұрын

    It cost higher then my house 😢

  • @King-hn6nu

    @King-hn6nu

    10 ай бұрын

    😂😂bhai new lambo 2.0 kesa hai?

  • @Masoch1st
    @Masoch1st6 ай бұрын

    unfuckingreal

  • @wdavis6814
    @wdavis68149 ай бұрын

    If I win the lottery