Autore dello sfondo:
Fritz Poelzl
30 Aug 2021
Helix Nebula
Processing:
PI:
Per channel: Cosmetic Correction, TGVDenoise, Linear Fit
Channel combination with Pixelmath.
Stretching with Histogramm Transformation, ArcSinHStretch and Masked Stretch. Enhancements with Curves Transformation, ExponentialTransformation and MultiScaleLinearTransform.
PS: final polishing
Remarks: SNR made me denoise more than I would have preferred to.
Dataset da cui è stata elaborata l'immagine
NGC 7293
32 credit
- Tipo di obiettivo............................................................................................................................Planetary Nebula
- Fotocamera............................................................................................................................FLI ProLine PL9000
- Coordinate dell'obiettivo............................................................................................................................RA 337.4106 Dec -20.8372
- Emisfero............................................................................................................................Southern
- Posizione del telescopio............................................................................................................................Chile
- Evento transitorio............................................................................................................................No
- Osservato il............................................................................................................................29 Jul 2019 - 18 Nov 2022
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Halpha | 932 | 22h | 85 |
| Luminance | 321 | 7h35m | 85 |
| Red | 184 | 4h20m | 85 |
| Green | 180 | 4h15m | 85 |
| Blue | 194 | 4h35m | 85 |