Autore dello sfondo:
Ivan Leurda
21 Feb 2026
NGC 3521
NGC 3521, also known as the Bubble Galaxy,is an intermediate spiral Galaxy located in the constellation Leo. Non-redshift measurements give a distance of 37.17 ± 1.83 MLy.
It was discovered by German - British astronomer William Herschel on 22 February 1784.
NGC 3521 is structurally similar to the Milky Way; additionally, its supermassive black hole has a similar mass to that of Milky Way (about 7 million solar masses).
(Wikipedia)
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 |