What is the difference in Broad & Narrow Band Astrophotography

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  • เผยแพร่เมื่อ 9 ม.ค. 2025

ความคิดเห็น • 28

  • @KevinRudd-w8s
    @KevinRudd-w8s 2 หลายเดือนก่อน +2

    Those were really nice images, and a nice and simple explanation of how filters work too. I live at 53° N so the targets in the Perseus arm are available for imaging for a large part of the year, in fact from my backyard the Wizard is visible all year round. The down side is we get a lot of cloudy nights, so it can take weeks or even months to capture enough data when using a mono camera so I use both mono and OSC rigs these days.

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +2

      Hi Kevin,
      Thank you.
      I am aware of your cloud situation as a retired meteorologist. The polar jet stream "lives" in your region, so even if the sky is clear, the winds aloft are usually quite turbulant reducing the "seeing" conditions.

  • @actudoran
    @actudoran 2 หลายเดือนก่อน +1

    nice comparison Pat!
    loved it!

  • @ronm6585
    @ronm6585 2 หลายเดือนก่อน +1

    Thanks Pat. Great shots!

  • @SimonsAstro
    @SimonsAstro 2 หลายเดือนก่อน

    Excellent video pat👍 cracking target the wizard, nicely done mate! I liked the SHO, I don’t think the other one was over baked, just a bit more contrast, looked ok to me! It’s great to be able to mix the narrowband data so much and get some great results! When I did my wizard, I did it in narrowband, and used the narrowband normalization tool to play around with the different options! Great tool! I love the Ha image, So much detail! Great job Pat and super images, as always! I’m hoping to get a nice Orion shot this Season, didn’t shoot it at all last year!! Hope you get a ‘little’ rain and plenty of nighttime clear skies 👍

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +1

      Thanks, Simon.
      I do like the PI narrowband normalization tool too. I like trying it in different ways. Orion is such a hard target to get without blowing out the core. My goal is to capture the "Trapezium" in the core. Oh, I did get that bit of rain ... 17cm worth! Now that's a boatload!
      I hope your sky is clear.

  • @jerrycarawan5515
    @jerrycarawan5515 2 หลายเดือนก่อน

    Great video Pat; I enjoy the versatility of the narrowband and to put it bluntly, it's just fun sometimes playing with the combinations; I enjoy broadband of course but Narrowband imaging seems time saving.

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน

      Hi Jerry,
      Thank you for watching. I agree with you. I never thought I would like monochrome beter than OSC, but, Yes-I-Do.
      Clear skies

  • @thomassurber7487
    @thomassurber7487 2 หลายเดือนก่อน +1

    Great images!

  • @JonnyBravo0311
    @JonnyBravo0311 2 หลายเดือนก่อน +1

    Hey Pat! I spent most of September trying to do a broadband representation of SH2-86 as a fun experiment. Got over 40 hours of LRGB data. Guess what I learned? I should stick to narrowband imaging of emission nebulae from my light polluted skies :).
    Looking at your RGB data, I see a bit of a calibration issue. Top left and bottom left appear to be over- and under-corrected. There's a clearly visible circular gradient in those corners. Might be something you want to examine. There also a section just to the left of the Wizard where a dust mote didn't properly calibrate out with your flats (much more visible in the starless RGB version). You can see the same over- and under-correction in the narrowband images as well.

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +1

      Thanks, Jonny.
      Yep, you are correct. While I did have flats for the narrowband, I failed to take flats for the broadband. Hence, that huge crater of a dust bunny to the left of the Wizard and the vignetting in the left side corners.
      Thank you for watching my video and leaving your comment. Now go out there and take some narrowband on your target. Ha ha.
      Clear Skies

  • @legacysearches4481
    @legacysearches4481 2 หลายเดือนก่อน +1

    All nice images

  • @davidmorris3759
    @davidmorris3759 2 หลายเดือนก่อน

    Thanks!

  • @F105Thundr
    @F105Thundr 2 หลายเดือนก่อน +1

    How do you know when to use either the narrow band vs broad band, or is that personal preference? What is the actual color of the nebula and how do you know which to use to capture that? Thanks......

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +1

      I would think the RGB image would be the true color of the target. The narrowband is more "false" color, as you can combine them in any way you want. Which to choose? Yep, personal preference. It depends on what you are looking for.
      Clear Skies.

  • @KJRitch
    @KJRitch 2 หลายเดือนก่อน +1

    I have a C8 with a OSC, ASI071MC Pro. I use the Antlia Quad Band filter. I've been imaging the Wizard Nebula the last several sessions and I have 6 hours of data.so far. I've been thinking about getting a duo narrow band filter. Can you recommend an Antlia model? I've been looking at the Optolong L Extreme. I know a mono camera is probably the best but I have to set up and tear down every session and I can't leave it out from dusk to dawn so shoot 3 to 4 hours per evening if I don't have issues. I feel I don't have the time for filters and the extra calibration frames needed I guess with a OSC you probably need more integration time vs a mono camera set up. I can't see a "Wizard" shape in this nebula.
    Thank you

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +1

      Hi KJ,
      There are pros and cons on the OSC versus monochrome cameras. The OSC ones are a bit more easy to acquire the target while the monochrome requires at least 3 colors and perhaps a luminance set of images. Also, less flats for the OSC. I have the Optolong L-Ultimate, eNhance, Pro, and Quad for my OSC (same as yours) and it depends on the target. I like using the Pro and Quad on galaxies and clusters and like using the other two on nebulae. Speaking of flats, I failed to take them for that RGB image ... oops.
      Clear Skies

  • @jp-us9rq
    @jp-us9rq 2 หลายเดือนก่อน +1

    I'm new to astronomy i got a 100mm refractor with 600 apature would I be able to see that

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +1

      Hi JP,
      Chances are you would not be able to see it visually. It is a very dim nebula. My images were 300 seconds each. You would be able to see it if you attach a camera to the scope and put it on a tracker using long exposures.
      Clear Skies

    • @jp-us9rq
      @jp-us9rq 2 หลายเดือนก่อน +1

      @@HeavenlyBackyardAstronomy i see thank u those cameras and the tripod their kinda expensive for me maybe one day lol

    • @raymondfreeman3660
      @raymondfreeman3660 2 หลายเดือนก่อน

      @@jp-us9rq
      Hi,
      Should you ever want to have a go at astrophotography, which unfortunately can quite easily become a money pit, there are now some smart telescopes around the $400 - $500 mark which might be a good starting point. Your current telescope should allow you to get great views of the moon, some planets and star clusters. Even bright nebulae and galaxies are however likely to be a bit disappointing. One of these smart telescopes will accumulate a lot of short exposures allowing you to get a far better idea of what these nebulae and galaxies look like on a connected smartphone or tablet. If this is of any interest to you then I can recommend some TH-cam videos to watch which will give you a better idea of how to use them and what you can expect to get.
      Hope you enjoy your new scope,
      Clear skies,
      Ray

  • @woody5109
    @woody5109 2 หลายเดือนก่อน +1

    Great video, love your yard. For us newbies your software just isn’t in the budget ($500CN) but all you guys use it, is there something free to get started on ?

    • @HeavenlyBackyardAstronomy
      @HeavenlyBackyardAstronomy  2 หลายเดือนก่อน +1

      Hi Woody,
      I stated by using Photoshop, but that has a price tag on it too. GIMP is free but is limited. I've heard some good things about Astro Pixel Processor, but again, it has price. Pixinsight is a bit expensive but it is a one time cost, where these other have monthly or yearly rental fees.
      Clear Skies