C/2021 A1 Leonard
IC59 within SH2-185, Cassiopea.
Stunning SHO narrowband data from Spain Takahashi FSQ-106EDX4.
Final integration of starless (Starnet2) nebula color background plus stars from Ha integration as luminance.
Postproduction by PixInSight and Photoshop.
After processing James Webb Space Telescope raw calibrated .fit data focused about NGC2070 by Photoshop screen colorized blending layers, with colours assigned according to NIRCAM filters guideline (cfr.: https://jwst-docs.stsci.edu/jwst-near-infrared-camera ) I was able to obtain this preliminary result.
According to spectrum values indicated by NIRCAM filters guidelines I decided a different approach for postproduction, considering the lowest nm values as “blue” colour band, the middle nm values as green, and the highest nm as red channel for an RGB combination.
Using Pixelmath I thus combined in PixInSight f090W and f187N masters creating my blue channel, f200W and f335N as the green channel, and f444W master for red channel.
Being NIRCAM data results of very narrowband recordings, I approach such masters as a peculiar SHO integration, and decided to attempt a starless integration for nebula details and colours work, and final recomposition of starry image using star luminance layer.
Starless version of each master I obtained by PixInSight > Starnet2. Each master I then stretched and export as .tiff in Photoshop for contrast adjustement, star residual removing and hot pixels fixing.
In Photoshop I imported each master into pertinent RGB channel. Then I provide to contrast, saturation and Brightness adjustement layers and fix other pixels problem emerged from channels combination.
Starry NIRCAM f444W filter master as luminance was finally imported as upper layer in luminosity blending mode, while starless f444W master for starless version.
Photoshop screen blending mode and colorizing layers of f090W, f187N, f200W, f335M, f444W master calibrated RAW .fit data of James Webb Space Telescope NIRCAM mosaic photo session focused on NGC 2070.
Link al TIFF/FITS: https://www.dropbox.com/s/lomf3scyuzq967j/LRGB_lfG_DBEspccDECONVezdenoise.xisf?dl=0
Scarica il file originale: Scarica
Telescopi O Obiettivi Di Acquisizione: Planewave CDK24
Camere Di Acquisizione: FLI PL9000
Montature: Mathis Instruments MI-1000/1250
Filtri: Astrodon Gen2 E-Series Tru-Balance Blue 50×50 mm · Astrodon Gen2 E-Series Tru-Balance Green 50×50 mm · Astrodon Gen2 E-Series Tru-Balance Lum 50×50 mm · Astrodon Gen2 E-Series Tru-Balance Red 50×50 mm
Software: Adobe Photoshop · Pleiades Astrophoto PixInsight
Date:29 Gennaio 2021 · 28 Gennaio 2022 · 29 Gennaio 2022 · 01 Febbraio 2022Pose:
Astrodon Gen2 E-Series Tru-Balance Blue 50×50 mm: 8×600″(1h 20′) -25°C bin 1×1
Astrodon Gen2 E-Series Tru-Balance Green 50×50 mm: 8×600″(1h 20′) -25°C bin 1×1
Astrodon Gen2 E-Series Tru-Balance Lum 50×50 mm: 8×600″(1h 20′) -25°C bin 1×1
Astrodon Gen2 E-Series Tru-Balance Red 50×50 mm: 8×600″(1h 20′) -25°C bin 1×1
Integrazione: 5h 20′
Giorno lunare medio: 16.88 giorni
Fase lunare media: 32.18%
Scala del Cielo Scuro Bortle: 1.00
Centro AR: 03h33m23s.864
Centro DEC: -36°04′55″.95
Campionamento: 0,620 arcsec/pixel
Orientazione: -1,195 gradi
Raggio del campo: 0,372 gradi
Trasformazione WCS: thin plate spline
Trova immagini nella stessa area
Dimenzione file: 53,5 MB
Luoghi: El Sauce Observatory, Chile, Coquimbo, Cile
Origine dei dati: Osservatorio remoto di proprietà
Origine dei dati remoti: Telescope Live
After James Webb Space Telescope MIRI and NIRCAM data, I focused about NGC 1365 Great Barred Spiral Galaxy, and found good calibrated data from Telescopelive archive to be downloaded and elaborated.
Telescope: Planewave CDK24 610/3962mm (CH-1-CCD)
Camera: Proline FLI PL 9000
Location: El Sauce Observatory, Chile
600″ x LRGB subframes, taken between 28/01/2022 and 01/02/2022
According to James Webb Space Telescope official documentation (cfr. https://jwst-docs.stsci.edu/jwst-mid-infrared-instrument) the JWST Mid-Infrared Instrument (MIRI) provides imaging and spectroscopic observing modes from 4.9 to 27.9 μm. These wavelengths can be utilized for studies including, but not limited to: direct imaging of young warm exoplanets and spectroscopy of their atmospheres; identification and characterization of the first galaxies at redshifts z > 7; and analysis of warm dust and molecular gas in young stars and proto-planetary disks.
MIRI imaging filter curves and wavelenght are resumed below
From Mikulksky Archive for Space Telescopes I downloaded raw calibrated .tif data focused about NGC 1365 Great Barred Spiral Galaxy, a double-barred spiral galaxy about 56 million light-years away in the constellation Fornax.
Among all data available I picked-up 3 sessions: a wide field MIRI mosaic by filters f770W, f1000W, f1130W and f2100W, a small field MIRI mosaic by the same filters f770W, f1000W, f1130W and f2100W a small NIRCAM field mosaic by filters f200W, f300M, f335M and f360M.
Study notes of Wing Chun Quan history and terminology for a Wushu contextualization https://academia.edu/resource/work/97856131 This is a part of my study draftnotes, less or more ordered, about history and nomenclature of Wushu generally, more in particular focused about orthodox … Continua a leggere
M45: Alcione and Merope, CH-1-CCD – Zoom into the Pleiades
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