# simg.de HiPS list creator_did = ivo://simg.de/P/NSNS/DR0_2/sii hips_release_date = 2025-06-07T18:22Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/sii hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: [SII] obs_description = SII at 671.7 nm and 673.0 nm with linear intensity and full dynamic range in Rayleighs. See http://www.simg.de/nebulae3/dr0_2 other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/SII creator_did = ivo://simg.de/P/NSNS/DR0_2/sn-vc hips_release_date = 2025-06-07T20:48Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/sn_vc hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: Estimated variance of visual continuum obs_description = Estimated variance (square noise) of visual continuum (HiPS simg.de/P/NSNS/DR0_2/vc) normalized to 30" pixels. Use these data to assess the accuracy of the star and H-alpha subtracted continuum, which is mainly determined by photon noise, whether from the signal of interest or from contamination. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_2/halpha hips_release_date = 2025-06-07T18:39Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/halpha hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: H-alpha obs_description = H-alpha (without continuum), background-corrected and intensity-calibrated to Rayleighs using WHAM (Wisconsin H-Alpha Mapper) data. This dataset only contains FITS images with linear intensity and full dynamic range. See http://www.simg.de/nebulae3/dr0_2 for other HIPSs. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/Halpha creator_did = ivo://simg.de/P/NSNS/DR0_2/oiii hips_release_date = 2025-06-07T16:20Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/oiii hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: [OIII] obs_description = OIII at 500.7 nm with linear intensity and full dynamic range in Rayleighs. See http://www.simg.de/nebulae3/dr0_2 other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/OIII creator_did = ivo://simg.de/P/NSNS/DR0_2/rgb8 hips_release_date = 2025-06-07T16:19Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/rgb8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: RGB continuum obs_description = Red, green and blue continuum with partially subtracted stars as compressed 8-bit color HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_2 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_2/hbr8 hips_release_date = 2025-06-07T00:43Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/hbr8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: H-alpha and continuum obs_description = H-alpha (without continuum, mapped to red), blue continuum (mapped to green) and red continuum (mapped to blue) as compressed 8-bit color HIPS for easy visualization. Stars are partially subtracted to make the faint refelction nebulae visible. See http://www.simg.de/nebulae3/dr0_2 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_2/sn-halpha hips_release_date = 2025-06-07T10:01Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/sn_halpha hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: Estimated variance of H-alpha obs_description = Estimated variance (square noise) of H-alpha (HiPS simg.de/P/NSNS/DR0_2/halpha) normalized to 30" pixels. Use these data to assess the accuracy of the continuum-subtracted H-alpha, which is mainly determined by photon noise, whether from the signal of interest or from contamination. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/Halpha creator_did = ivo://simg.de/P/NSNS/DR0_2/sii8 hips_release_date = 2025-06-07T20:49Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/sii8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: [SII] (8 bit) obs_description = SII at 671.7 nm and 673.0 nm (without continuum) as compressed 8-bit HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_2 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/SII creator_did = ivo://simg.de/P/NSNS/DR0_2/oiii8 hips_release_date = 2025-06-07T11:13Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/oiii8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: [OIII] (8 bit) obs_description = OIII at 500.7 nm (without continuum) as compressed 8-bit HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_2 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/OIII creator_did = ivo://simg.de/P/NSNS/DR0_2/vc hips_release_date = 2025-06-07T10:20Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/vc hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: Visual continuum obs_description = Star-subtracted visible continuum as a combination of the red, green, and blue color channel in Rayleighs per nm. H-alpha was subtracted, but the data still contains some emission from SII, OIII and H-beta. See http://www.simg.de/nebulae3/dr0_2 for other HIPS. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_2/sn-sii hips_release_date = 2025-06-07T07:57Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/sn_sii hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: Estimated variance of [SII] obs_description = Estimated variance (square noise) of SII (HiPS simg.de/P/NSNS/DR0_2/sii) normalized to 30" pixels. Use these data to assess the accuracy of the continuum-subtracted SII, which is mainly determined by photon noise, whether from the signal of interest or from contamination. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/SII creator_did = ivo://simg.de/P/NSNS/DR0_2/halpha8 hips_release_date = 2025-06-07T11:46Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/halpha8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: H-alpha (8 bit) obs_description = H-alpha (without continuum) as compressed 8-bit HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_2 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/Halpha creator_did = ivo://simg.de/P/NSNS/DR0_2/sn-oiii hips_release_date = 2025-06-07T11:14Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/sn_oiii hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: Estimated variance of [OIII] obs_description = Estimated variance (square noise) of OIII (HiPS simg.de/P/NSNS/DR0_2/oiii) normalized to 30" pixels. Use these data to assess the accuracy of the continuum-subtracted OIII, which is mainly determined by photon noise, whether from the signal of interest or from contamination. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Gas-lines/OIII creator_did = ivo://simg.de/P/NSNS/DR0_2/ohs8 hips_release_date = 2025-06-19T17:38Z hips_service_url = http://www.simg.de/nebulae3/dr0_2/ohs8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.2: [OIII], H-alpha and [SII] obs_description = [OIII] (mapped to red), H-alpha (mapped to green), and [SII] (mapped to blue) without continuum (except for the brightest stars) as compressed 8-bit color HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_2 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_1/tc8 hips_release_date = 2025-06-07T16:33Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/tc8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: True-color obs_description = Almost true-color composite without star subtraction as compressed 8-bit color HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_1 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_1/sn-vc hips_release_date = 2025-06-07T16:33Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/sn_vc hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: Estimated variance of visual continuum obs_description = Estimated variance (square noise) of visual continuum (HiPS simg.de/P/NSNS/DR0_1/vc) normalized to 30" pixels. Use these data to assess the accuracy of the star and H-alpha subtracted continuum, which is mainly determined by photon noise, whether from the signal of interest or from contamination. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Deprecated/Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_1/halpha hips_release_date = 2025-06-07T16:33Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/halpha hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: H-alpha obs_description = H-alpha (without continuum), background-corrected and intensity-calibrated to Rayleighs using WHAM (Wisconsin H-Alpha Mapper) data. This dataset only contains FITS images with linear intensity and full dynamic range. See http://www.simg.de/nebulae3/dr0_1 for other HIPSs. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Deprecated/Image/Gas-lines/Halpha creator_did = ivo://simg.de/P/NSNS/DR0_1/hbr8 hips_release_date = 2025-06-07T16:33Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/hbr8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: H-alpha and continuum obs_description = H-alpha (without continuum, mapped to red), blue continuum (mapped to green) and red continuum (mapped to blue) as compressed 8-bit color HIPS for easy visualization. Stars are partially subtracted to make the faint refelction nebulae visible. See http://www.simg.de/nebulae3/dr0_1 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Deprecated/Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_1/sn-halpha hips_release_date = 2025-06-07T16:33Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/sn_halpha hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: Estimated variance of H-alpha obs_description = Estimated variance (square noise) of H-alpha (HiPS simg.de/P/NSNS/DR0_1/halpha) normalized to 30" pixels. Use these data to assess the accuracy of the continuum-subtracted H-alpha, which is mainly determined by photon noise, whether from the signal of interest or from contamination. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Deprecated/Image/Gas-lines/Halpha creator_did = ivo://simg.de/P/NSNS/DR0_1/vc hips_release_date = 2025-06-07T16:33Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/vc hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: Visual continuum obs_description = Star-subtracted visible continuum as a combination of the red, green, and blue color channel. H-alpha was subtracted, but the data still contains some emission from SII, OIII and H-beta. See http://www.simg.de/nebulae3/dr0_1 for other HIPS. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Deprecated/Image/Optical creator_did = ivo://simg.de/P/NSNS/DR0_1/halpha8 hips_release_date = 2025-06-07T16:34Z hips_service_url = http://www.simg.de/nebulae3/dr0_1/halpha8 hips_status = public master clonable obs_collection = Northern Sky Narrowband Survey obs_title = NSNS DR0.1: H-alpha (8 bit) obs_description = H-alpha (without continuum) as compressed 8-bit HIPS for easy visualization. See http://www.simg.de/nebulae3/dr0_1 for other data sets. obs_copyright = Northern Sky Narrowband Survey by Stefan Ziegenbalg. The material can be freely used and distributed under Creative Commons Attribution-Noncommercial-Share Alike 4.0 license (CC-BY-NC-SA). obs_regime = Optical client_category = Deprecated/Image/Gas-lines/Halpha