SH2-157, the Lobster Claw Nebula, is an emission nebula located about 11,000 light-years away in the constellation of Cassiopeia.
According to SHO palette, red/orange and predominantly yellow regions of the nebula evinced a very large H II region while the blue-colored are predominately regions featured by the emission of light from molecular oxygen.
On the top NGC 7635 – the Bubble Nebula, and on the middle the star cluster NGC 7510.
Region of SH2-157 and NGC7635 in narrowband filters, SHO palette. From Bortle 6th degree sky in Livorno, Italy – home balcony. William Optics Redcat 51 and ASI1600mm Pro cooled at -20 Celsius. Mount SW EQM35 Pro, setup ground on Asiair Pro.
Telescopi o obiettivi di acquisizione: William Optics RedCat 51 Petzval APO Camere di acquisizione: ZWO ASI 1600MM-Cool Pro Montature: Skywatcher EQ35M Telescopi o obiettivi di guida: QHYCCD QHY Mini Guide Scope Camere di guida: ZWO ASI 120MM Mini Software: ZWO ASIair Pro · Pleiades Astrophoto PinInsight · Lightroom · Photoshop Filtri: Astronomik H alpha 12 nm 2 inch Astronomik · Astronomic SII 6nm 1.25 · astronomic Oiii 6nm Accessorio: ZWO 8x 1.25″ Filter Wheel (EFW)
NGC7635 region in HSO from my home balcony, Livorno – Italy. Drizzle data integration of narrowband Ha, Sii, and Oiii subframes taken in August and September. William Optics Redcat 51, ZWO ASI 1600mm Pro Narrowband filters by Astronomik Ha, Sii and Oiii 1,25″ Skywatcher EQM35 Pro, ASIAIR Pro.
IC1396 region in UHC, ASi183MC-Pro Gain450 30″ on Skywatcher AZ-GTi > Kstars platesolving, no autoguide. Drizzle data integration of 98 lights, 77 Dark, 77 Dark-flat, 77 flat (0,007250 sec) Telescopi o obiettivi di acquisizione: William Optics RedCat 51 Petzval APO Camere di acquisizione: ZWO ASI183MC Pro Montature: SkyWatcher AZ-GTI Software: Adobe Lightroom · Stark Labs Phd2 · Photoshop · Astroberry · Pleiades Astrophoto PinInsight · KStars Ekos/INDI, Astroberry OS Filtri: Optolong UHC 2″
Date:06 Giugno 2021 Pose:Optolong UHC 2″: 98×30″ (49′) (gain: 450.00) -1C bin 1×1 Integrazione: 49′ Dark: ~77 Flat: ~77 Dark dei flat: ~77 Giorno lunare medio: 25.99 giorni Fase lunare media: 13.52% Scala del Cielo Scuro Bortle: 6.00
Dettagli astrometrici di base Astrometry.net job: 4606941
Risoluzione: 5496×3672 Luoghi: Home (balcony), Livorno, Livorno, Italia Origine dei dati: Giardino
NGC7635 field in UHC, ASi183MC-Pro Gain450 30″ on Skywatcher AZ-GTi > Kstars platesolving, no autoguide. Drizzle data integration of 117 lights, 77 Dark, 77 Dark-flat, 77 flat (0,007250 sec) Telescopi o obiettivi di acquisizione: William Optics RedCat 51 Petzval APO Camere di acquisizione: ZWO ASI183MC Pro Montature: SkyWatcher AZ-GTI Software: Adobe Lightroom · Stark Labs Phd2 · Photoshop · Astroberry · Pleiades Astrophoto PinInsight · KStars Ekos/INDI, Astroberry OS Filtri: Optolong UHC 2″
Date:06 Giugno 2021 Pose:Optolong UHC 2″: 117×30″ (58′ 30″) (gain: 450.00) -1C bin 1×1 Integrazione: 58′ 30″ Dark: ~77 Flat: ~77 Dark dei flat: ~77 Giorno lunare medio: 25.99 giorni Fase lunare media: 13.52% Scala del Cielo Scuro Bortle: 6.00