C51
IC 1613
Dados do Objeto
- Designação do Catálogo
- C51
- Tipo
- Galaxy
- Constelação
- Cetus
- Magnitude
- 9.3
- Ascensão Reta
- 01h 04m 48.0s
- Declinação
- +02° 07' 01.2"
- Distância
- 2,300,000 anos-luz
- Tamanho Angular
- 17
Imagem de Levantamento
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Sobre C51
Descrição
IC 1613 is a dwarf irregular galaxy in Cetus, about 2.4 million light-years away. It is a member of the Local Group and one of the few galaxies that shows a blueshift, meaning it is approaching us. It has very low metallicity and active star formation.
Dicas de Observação
An extremely challenging visual target due to its very low surface brightness (about 14.2 mag/arcsec²). Requires at least a 10-inch telescope, dark skies, and averted vision. Best in autumn evenings.
História
Discovered by Max Wolf in 1906. It is important in cosmology because its low metallicity and proximity make it ideal for calibrating the Cepheid period-luminosity relation for distance measurements.
Curiosidades
IC 1613 has almost no interstellar dust, making it transparent and allowing clear views of background galaxies through it. Its low metallicity means it has undergone relatively little chemical enrichment from stellar evolution.
Fotos da Comunidade (1)
Credit: ESO. License: CC BY 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026