Hey everyone, I just wanted to share a great resource I just recently found for finding new narrowband targets - the Northern Sky Narrowband Survey by Stefan Ziegenbalg. It seems to be a high-resolution, very detailed, and very deep narrowband survey for the northern hemisphere, which covers a lot areas that are missing from all the other surveys I could find. Here's the link to their main page: https://simg.de/index.html. Here's the link for the Aladin full survey map: https://simg.de/nebulae3/dr0_1/halpha/ (you'll need to up the brightness, contrast, and set an aggressive stretch to see anything). Edit: As others on this thread have said, please make sure to give proper credit to the creator of the survey if you use it to find new targets! With that in mind, here's some interesting targets on the survey: SNR (?):  Hints of a larger SNR in Auriga, near SH2-224:  Either a very large filament or a stitching artifact, plus the unnamed nebula around Pi Aquarii:  Have fun looking at the survey, and I hope I gave enough credit to the people who made it - it's pretty awesome! Clear skies, The0s
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Just some more interesting objects: this one's identified as a possible SNR in the uncatalogued list  Full Ursa Major SNR arc:  |
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This is very interesting! I hope the creator gets credited if anyone uses his data to discover something for themselves though.
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This is great! Thanks for posting about it.
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Very interesting. He might have discovered a lot of uncatalogued objects.
JF
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Thank you so much for sharing. The telescope set up and the resulting images are truly mind boggling. I could browse Stefan's website all day - what a wonderful resource for anyone looking for new and interesting targets.
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Just an update for anyone interested - looks like there's been a second data release with the full Aladin survey maps for OIII, SII, and continuum data. Lot's of cool stuff on there, probably some unimaged SNRs and other nebulae somewhere if you look close enough. Here's the link: https://www.simg1.de/nebulae3/dr0_2/ (you'll need to scroll down quite a ways to get to the HiPS table). Edit: Scroll down a bit further for the incredible stats for this survey - over 740,000 individual exposures and 10,000 hours of imaging!
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This looks really awesome, is there any such case of someone doing the same for us in the southern hemisphere??
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This is fantastic. For the seasoned NINA users here, is there a way to incorporate this into the framing assistant?
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Ashraf AbuSara:
This is fantastic. For the seasoned NINA users here, is there a way to incorporate this into the framing assistant? You can use the files in the Framing Assistant, afaik.
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Sam Badcock:
This looks really awesome, is there any such case of someone doing the same for us in the southern hemisphere?? I believe there's a few surveys ongoing, but nothing's been released yet. The closest I could find was the SuperCOSMOS H-alpha Survey here, but I think you have to download individual images for that - there's no full map like the NSNS.
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For anyone interested (and who has a lot of time), here's a cool, ultra-faint object: SNR G159.6+07.3. Doesn't look like it's ever been imaged on AstroBin, but the few images on the discovery paper here makes it seem very interesting. You can also see the somewhat brighter and more popular SNR G156.2+5.7 on the right. Center coordinates are 05 19 60.00 +49 59 60.0, seems like it's visible in Ha and SII but very faint in OIII.  |
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For anyone interested (and who has a lot of time), here's a cool, ultra-faint object: SNR G159.6+07.3. Doesn't look like it's ever been imaged on AstroBin, but the few images on the discovery paper here makes it seem very interesting. You can also see the somewhat brighter and more popular SNR G156.2+5.7 on the right. Center coordinates are 05 19 60.00 +49 59 60.0, seems like it's visible in Ha and SII but very faint in OIII.
This one is giga-faint. If you try it you'll need 300hrs+ with something fast from dark skies
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Hey everyone,
I just wanted to share a great resource I just recently found for finding new narrowband targets - the Northern Sky Narrowband Survey by Stefan Ziegenbalg. It seems to be a high-resolution, very detailed, and very deep narrowband survey for the northern hemisphere, which covers a lot areas that are missing from all the other surveys I could find. Here's the link to their main page: https://simg.de/index.html. Here's the link for the Aladin full survey map: https://simg.de/nebulae3/dr0_1/halpha/ (you'll need to up the brightness, contrast, and set an aggressive stretch to see anything). I didn't see a place to alter the brightness, contrast or stretch. Where is that done? Thanks, Kevin
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Click on the stack and then settings, as shown:  |
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@Kevin Morefield Personally, I click on Stack, then Settings, then navigate to the box on the far right (looks like a histogram), set stretch to asinh, then play around with the max cut (200 shows most of the bright stuff, 80 most of the ultra-faint). This seems to show a lot more faint stuff than using the brightness sliders. Edit: There's also a pre-stretched, 8 bit PNG version of the survey on the website if you don't want the hassle - it doesn't show quite as much though
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Awesome efforts!
Any chance for colored camera in this survey or its only for NB?
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I have already posted the link in another thread but it seems fit to replicate it here. They have both false-colour (NB) survey as well continuum (though this one is not as much useful): Northern Sky Narrowband SurveyNorthern Sky Narrowband Survey: DR0.2 (Draft) |
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