Astrophotography from a white zone with NO filters: Is it possible?! Las Vegas Bortle 9

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Galactic Hunter was created by Antoine and Dalia Grelin, a stargazing couple from Las Vegas, NV. We do our best to publish entertaining and helpful Astrophotography content, through videos, written tutorials, books and more. The main goal of this RU-vid channel is to help as many beginner astrophotographers as possible in this difficult yet rewarding hobby. We hope our content will help you reach new heights in your deep sky imaging journey!
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7 окт 2024

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Комментарии : 110

@ChucksAstrophotography 3 года назад

That came out very nice!

@GalacticHunter 3 года назад

Thank you Chuck! Your videos where you image in broadband were super inspiring!

@gooe9561 3 года назад

Very good job. I'm Bortle 9 as well and I've learned that integration time needs to be very high to combat the light pollution. For every 1 hour from a Bortle 1 site, I need to image for 200 hours. Please keep imaging this galaxy and see how it looks after about 100hrs. I bet it will be amazing.

@GalacticHunter 3 года назад

Thank you! Debating imaging a new galaxy or going all the way with this one for the next few clear nights haha, we'll likely keep imaging it :)

@xItzSpruce 11 месяцев назад

I live in bortle 8. But still my country dont have huge cities

@martynh5410 3 года назад

I’m quite amazed that you were able to produce such a great image. Good job 👍

@johngiromini5745 3 года назад

The image started out looking hopeless, but the end result was pretty good.

@GalacticHunter 3 года назад

The magic of stacking!

@renedecandia 3 года назад

Awesome job. With today’s modern cameras and the power of Pixinsight, imaging without filters is a more realistic prospect.

@GalacticHunter 3 года назад

Yes! That's really great to be able to get better and better images with new releases!

@lukomatico 3 года назад

Hey guys, I really enjoyed your video! - I feel a little cheeky saying this but I think it's relevant - I recently did a video on a similar subject, imaging during the full moon from a bortle 7 without any filters, it was challenging! - I wish I could get out somewhere dark, but currently all my imaging must be done from home - and my broadband targets are always unfiltered (with mixed results!) so I appreciate the challenges you faced during processing+capture. Again, loved watching it :) Luke

@GalacticHunter 3 года назад

Thank you Luke! It definitely is challenging, I have to admit the camera we currently use really helped with the noise though. Best of luck and will check out your video right after dinner :D

@lukomatico 3 года назад

@@GalacticHunter omg -That's so kind of you! - I really appreciate your time :) The QHY is a beautiful camera no doubt, as is the scope and mount but it looks like your processing also was pivotal in making the end result shine :) I'm a long time fan and follower of your channel, - I genuinely love your quality content, cinematography and seeing your imaging adventures, wheter solo or as a couple is so wholesome too! :) as always, looking forwards to the next one!

@tullyfisher 2 года назад

Amazing result. (Also without any attention to the conditions I would say) - Great job on this!

@backyardphotons3833 3 года назад

Looking good. Quite the challenge

@legacysearches4481 3 года назад

Perfect timing! I am moving in 10 days to bortel 8 and I JUST posted about this in my AP group this morning. Thank you for showing me what can be done with these conditions.

@GalacticHunter 3 года назад

Haha perfect!

@Wheeljack678 3 года назад

I really like how you're challenging yourself like this. It looks like good practice as it is really putting your processing skills to the test (which are amazing by the way). Good job.

@GalacticHunter 3 года назад

Thanks Wheeljack!!

@perglisnit82 3 года назад

Awesome! I’m from Vegas and I just started Astrophotography with my d5600...still a newbie when it comes to this :)

@fazergazer 3 года назад

I’m doing M94 right now, can’t wait to compare. Bottle 5.5 here

@GalacticHunter 3 года назад

Such a beautiful galaxy, good luck!

@eyesoftexasskywatch 3 года назад

Good job processing out the vignetting circles! That came out real nice for such bright skies. Clear Skies!

@GalacticHunter 3 года назад

Thank you so much!

@avt_astro206 3 года назад

Thats a Fantastic Shot of M94 !! Well Done🔭🌟

@meghjoshi7031 3 года назад

That’s some really serious processing! Amazing video

@GalacticHunter 3 года назад

Thank you!

@ronbaldwin6382 3 года назад

LOVE those NUCs!. Some of mine have been running 24/7 for 7 years! I've been thinking about NUCing my astro setup. I'd likely use an open cell foam filter on the air inlets to keep the dust out (even so, you'll still want to keep the dust blown out regularly.) Consider running directly off of 12V for power efficiency. The process of running 12 V to a 120v inverter to a 19V power brick or wall wart is much more lossy (plus square wave inverters are electronically very noisy.) The NUC power input is designed for 12 to 19v. Oh, another thing... To reduce electronic switching noise that could interfere with USB devices, using clip on ferrites on power cables at the output of a power adapter (switching power supply) and on the other end at the power input for the device device, especially for devices like laptops and NUCs that have their own switching power supplies for dropping the input voltage on the motherboard, can make a big difference. Did you run into any difficulty with color depth when doing a remote desktop session? That would have been my first guess at the banding you saw but shouldn't have affected the real outcome. Soooo many thoughts and questions! Thanks for taking all the steps that I've not quite been ready to do!

@Dylans_astro 3 года назад

Wow! That turned out amazing!

@GalacticHunter 3 года назад

Thank you!

@banday78 3 года назад

Brilliant work

@Mistr_A 3 года назад

Decent effort without any calibration frames or filters great processing

@GalacticHunter 3 года назад

Thanks Nick!

@cjmenagh882 3 года назад

Very nice picture. Watching the video while no filter imaging Leo Triplet from Bortle 4 backyard. Clear Skies, can’t wait for #15.

@GalacticHunter 3 года назад

Awesome! Bortle 4 is great, we imaged our Leo Triplet a few years ago from B4 as well :)

@AstroFarsography 3 года назад

damn I'm early. Time to watch

@beatsntoons 3 года назад

Very keen to see that NUC video, especially the power draw of it (and how you power it as well)

@GalacticHunter 3 года назад

Video will be up in just a few days!

@joebiscoeiv747 3 года назад

That's friggin amazing!

@GalacticHunter 3 года назад

Thanks!

@AstroFarsography 3 года назад

That's a pretty great result from B9 with no filters. Surprising just how good you can get things. Did you ever take calibration frames as well? Would be interesting to see if flats and calibration helps with the banding you saw in the raw images. Tempted to ditch my filters now! :P Fun video, nice creative challenge

@GalacticHunter 3 года назад

Thanks Ruzeen! No we didn't take calibration frames but if we do image in broadband from home again we will!

@dipenbhavsar9864 3 года назад

That was brilliant..

@GalacticHunter 3 года назад

Thank you!

@nurfirmansyah8807 3 года назад

You definitely did a great job at the processing. The subs look really sorrowful with all of those bright light pollution

@GalacticHunter 3 года назад

Thank you!

@tylerjay_ 3 года назад

Nice work buddy! 🤯 I have an idea about this...we can talk about it in May!

@GalacticHunter 3 года назад

Thanks man! And yes sounds good!

@fmacauliffe 3 года назад

Happened that exact same thing to me. I always thought that there was no point of imaging from the city, in my case, bortle 8, lots of passing clouds (I live close to the sea) and high humidity levels... until I tried to image M83 in broadband without any filter and the result was astonishing. Nice video, as always! Cheers from Chile

@GalacticHunter 3 года назад

Wow that's awesome to hear! Now I feel like I won't dislike Spring season as much (Galaxy season here which I never liked much haha)

@miguelacuna1248 3 года назад

Buen video!!! me suscribo, saludos desde Palma de Mallorca.

@Tim_the_Astronurd 3 года назад

nice work!

@GalacticHunter 3 года назад

Thanks!

@AstroDenny 3 года назад

I set my rig up with a NUC - It's a really sweet setup. Cool video and a really neat target. The banding on your subs looks like it was because your the video on your RDP software was set to 16 bit and it couldn't display the gradient smoothly. Just a guess.

@GalacticHunter 3 года назад

That makes sense actually, probably just a display issue, thanks!

@Jefferson196 3 года назад

Looks good. What filter would you typically use in the city to image a galaxy.

@GalacticHunter 3 года назад

Most people use the L-Pro when imaging galaxies/clusters from the city

@AaronDalton1 3 года назад

Hey guys, unless you're specifically trying to get Ha on a galaxy, you never want to use a filter on galaxy, regardless of light pollution. Galaxies are broadband targets so any kind of light pollution filter is taking away just as much good signal as it is cutting out LP. The only cure is more integration time and a good background extraction in PI. Or darker skies of course!

@GalacticHunter 3 года назад

You're absolutely right! I always thought there was one broadband light pollution filter for galaxies and clusters but I guess not, two of my friends use the L-Pro filter when they image galaxies from home but I guess it's better without any!

@ChucksAstrophotography 3 года назад

I'm one of those poor fools who have to use a light pollution filter. But I don't know how Galactic Hunter can set SGP for 300s exposures. I would be completely whitewashed if I went that long. I can only go 30s on a RASA and 1 minute on a refractor if I'm lucky.

@GalacticHunter 3 года назад

@@ChucksAstrophotography Surprisingly 300s worked fine with M94, but we tried M40 a couple hours before and over a minute was completely washed out so we did 1m exposures for that one 🤔I lowered the gain and changed the offset setting when switching to M94 so maybe that helped 🤔

@srikanthmeg 3 года назад

I'm imaging Needle Galaxy with L-pro right now 5 miles from downtown Chicago (asi533 with 1 min integration). I should have seen this earlier.

@suburbanastronomer1288 3 года назад

I also use the L-Pro from my Bortle 8-9. I've also imaged from home without a filter, but using the filter enables me to do 40s exposures as opposed to 20 which makes integration a bit easier.

@nobodyspecial7097 3 года назад

I accidently forgot to put my light pollution filter in for a couple of targets I took, they ended up being my favorite images I've taken.

@johnadastra1754 3 года назад

Dude, Those gradient circles are most likely from the local light pollution brightening the sky. I see this when I image from the city as well, so I always use a CLS-CCD or L-Pro filter. My Moonlite focuser has internal threads for a 2" filter, which was not obvious since it wasn't in the manual. But nice processing, and congrats on the shot!

@GalacticHunter 3 года назад

Thanks John for clarifying! Glad those went away after stacking :)

@suburbanastronomer1288 3 года назад

I don't know if anyone told you this in the comments, but the weird display from SGP could easily be the connection to the NUC. I control my laptop remotely in the cold months, and AnyDesk can give me a scaled down screen image if the connection isn't strong.

@GalacticHunter 3 года назад

That's what I thought at first but then on the main desktop I could also see those weird circles in PixInsight 🤔

@evilkyote 3 года назад

Turned out really great. Keep up the great work. What planetarium software did you use during this video? Looks like a good one.

@GalacticHunter 3 года назад

Thanks! It is Sky Safari

@hbmike47 3 года назад

The $5,000 camera with 16 bit data and huge -e wells helps a lot. The SVX130 APO triplet is excellent to get the most contrast you can with the heavy light pollution. Just the camera and the telescope before adding focuser, flatteners and correctors is about $10,500. The Paramount MyT is a great match for this rig and comes in at about $6,600 All told, about $18,000, $20,000 if you include the computer. Not to get too picky here about cost and mindful of your intention of doing something broadband 2 questions come to mind. 1) With this much invested in equipment, why would you even think about imaging a broadband target without a relatively inexpensive broadband light pollution filter? 1a) Another option would be to use a monochrome camera and R-G-B-L broadband filters. which is more typical when you are in the $20k range for gear. 2) How do you afford this wonderful equipment? Do you get sponsored? Equipment loans? It seems to me that the only reason to image without at least a CLS filter is if you have much more modest equipment and can't afford one. To see what you can achieve using lets say a DSLR and a more modest scope like a 6" or 8" SCT in LV bortle 9 is a more interesting challenge. Thanks

@GalacticHunter 3 года назад

Hey Mike, You are totally right, the camera is incredible and it definitely helps! Same for the scope. 1) We don't have any broadband filters, maybe it's time to get one haha 2) The scope is from a friend who watches our RU-vid channel, he also included the camera, we are extremely thankful for it. The mount is from a different friend who is planning on selling it in a couple of months and offered to let us use it in the meantime, again, super thankful... You make a good point regarding this challenge and how it would be better done with modest equipment, that's going on the to-do list for our beginner rig!

@sjpp71 3 года назад

Great image! Excuse my ignorance, but what is the black thing cube sitting between the NUC and the guidescope?

@GalacticHunter 3 года назад

It's a power converter, we'll tak about it in the next video :)

@ergio1 3 года назад

That’s nice! Well done... 👏👏👏what’s your bortle class there at home?

@OrangesII 3 года назад

They are bortle 9 I believe

@geestang2662 3 года назад

Have you tried scooping Andromeda?

@kenrockelein1931 3 года назад

I think the plate solving issue is a problem with the plate solver itself. It would never find M94 last year for me either. Gotta try again with ASTAP.

@GalacticHunter 3 года назад

Hmm interesting, I'll try a different target next time, thanks for the info!

@LogansChristmasLights 3 года назад

Great result considering your light pollution. Did you solve your plate solve issue?

@GalacticHunter 3 года назад

Thanks! And sadly no, no idea what's wrong but I can't go into the desert without fixing it first since I won't have blind solving there..

@mariospenard5125 3 года назад

Business as usual!

@TheZ3roCool 3 года назад

Nice result, would you not be helped a lot by using something like the L-Pro filter?

@GalacticHunter 3 года назад

Most likely yes, but we never bought one so we couldn't try 😅Maybe we'll do a comparison with/without at some point in the future

@TheZ3roCool 3 года назад

@@GalacticHunter Sounds like a plan. I have issue that I use a GT-81 and 1600MM so no good for galaxies really. Thinking of going MC and L-Pro 🤔 Would love it if you guys did a shoot with a filter to compare 🙏

@frozenfrosty00 3 года назад

baby galactic hunter announcement soon? i think so... lol

@SgtMars 3 года назад

I live in Las Vegas and I got the Sony A7III with a Samyang 14mm 2.8. I hate that we live in such a light polluted city. I need to find some good places before Milky Way season fully arrives. Any tips?

@GalacticHunter 3 года назад

For Milky Way under an hour drive, Nelson's Landing is pretty good, then you can keep driving South and it will get darker and darker with no light dome to the South and East which is perfect for the Milky Way

@myvideosource66 3 года назад

Great video - thabks for sharing! 94x3/60=4.7 and not 7.6. what do I missing?

@GalacticHunter 3 года назад

Thanks! As for the math, my bad, it's 5 minute exposures, not 3 minutes

@myvideosource66 3 года назад

@@GalacticHunter and thatbwould be 7. 8 haha

@pupperemeritus9189 3 года назад

Is it weird that my place is nomadic when it comes to bortle class. Feels more like a bortle 6.5 between rains during monsoon but during rest of the year it's a big 9+.

@captaintoad-ef6zt Год назад

What filters do you usually use?

@josekunhardt 3 года назад

How are you able to do 3 minutes subs without filter at bortle 9? What was your gain or iso?

@GalacticHunter 3 года назад

Gain was super low at 26, it was actually 5 minutes 😱 (made a typo in the video)

@josekunhardt 3 года назад

@@GalacticHunter wow, I'm going to have to experiment from my house. I shoot with a dslr so I won't be able to go below 100 but I'll check how far I can push that just for the sake of experimenting, I know you went that low to conserve space as 65 megapixels would make a huge file.

@josekunhardt 3 года назад

Great shot by the way.

@keeplookingup911 3 года назад

Is Nebula possible without filters?

@GalacticHunter 3 года назад

Bright ones should be possible yes, but it might be difficult to get the fainter outer gases in some of them

@GrowingAnswers 3 года назад

How did you expose for 3min in a bortle 9? I use a dslr and can’t even do much more than 1 min without a filter under a bortle 6. Is the gain turned way down?

@GalacticHunter 3 года назад

Gain was 26, so I"m guessing that helped :D

@fkoehleriv 3 года назад

In Washington DC suburbs, with 8" SCT with 0.63 focal reducer (so, ~F6.3 at 1250mm focal length), Canon T3I at ISO1600 with Astrodon CLS clip-in filter, I've found variation between 120s to (at very best) 300s...depending on thin/high clouds...transparency. Without a filter... I agree... more like a 60s. I've considered imaging at lower gain (For the T3I, ISO800 is typically recommended), but then I worry about planes, satellites, wind (basically tracking error), etc. Just did M81 & M81 with this system... stacked in PixInsight... with flats & darks... I wish I had your processing skills! My basic workflow just barely gets a usable image. I have a long way to go to learn how to do processing like yours in PixInsight. A basic tutorial on the steps you did post-registration & integration to get to that quality would be helpful for us all stuck in the suburbs. Thanx for great video!

@GrowingAnswers 3 года назад

@@fkoehleriv you don’t need to worry about planes or satellites. Sigma clipping takes care of that. Also there is a processing technique that is very easy and works every time without issues. A little info on that is setting the black level very precisely and then copying the layer and desaturating the copied layer. The you duplicate that layer and set the duplicated layer to blend by division and the layer below that (the desaturated one) to multiply. Then you use - level 10-30 arc sign stretches to the layer set as multiply and reset the black levels within that layer only. Once it’s stretched to a liking you take the top layer and stamp it forward. You’ll need to look it up to know exactly how to do it, but it brings out more dust and detail than just standard stretching. And it’s faster and consistent.

@cucubits 3 года назад

Which planetarium software is that? Looks better than Stellarium.

@albantessier391 3 года назад

Séquence generator pro

@mcdiskett2003 3 года назад

wow thats an expensive camera

@mashcury 3 года назад

16bits camera. . .

@terrybrooks395 3 года назад

You lost me at QHY600C, that thing alone cost twice what I would ever spend on a complete set up and more than 4 times my current set up, just for the camera, can't possibly replicate what you do so no point watching, nice videos though