Autore dello sfondo:
Pedro Sánchez
15 Jul 2025
NGC 3521
NGC 3521 was discovered by William Herschel on February 22, 1784.
NGC 3521 is an excellent example of a flocculent intermediate spiral galaxy.
Its spiral structure shows that it is made up of multiple spiral arm segments rather than continuous spiral arms.
This galaxy is unique in that its surrounding envelope displays various structures interpreted as remnants of one or more smaller galaxies that have been absorbed by it.
Dataset da cui è stata elaborata l'immagine
NGC 3521
12 credit
- Tipo di obiettivo............................................................................................................................Galaxy
- Fotocamera............................................................................................................................QHY 600M
- Coordinate dell'obiettivo............................................................................................................................RA 166.4524 Dec -0.0359
- Emisfero............................................................................................................................Southern
- Posizione del telescopio............................................................................................................................Chile
- Evento transitorio............................................................................................................................No
- Osservato il............................................................................................................................12 Jan 2024 - 02 Jan 2025
Filtro | Exp. media (s) | Esposizione totale | Sottoframe |
|---|---|---|---|
| Blue | 312 | 4h25m | 51 |
| Luminance | 288 | 4h | 50 |
| Red | 300 | 4h10m | 50 |
| Green | 300 | 4h10m | 50 |