C3
NGC 4236
Dados do Objeto
- Designação do Catálogo
- C3
- Tipo
- Galaxy
- Constelação
- Draco
- Magnitude
- 9.7
- Ascensão Reta
- 12h 16m 42.0s
- Declinação
- +69° 28' 01.2"
- Distância
- 7,000,000 anos-luz
- Tamanho Angular
- 21
Imagem de Levantamento
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Sobre C3
Descrição
NGC 4236 is a barred spiral galaxy in Draco, about 11.7 million light-years away and a member of the M81 group. It is one of the largest galaxies in angular size (over 20 arcminutes long) but has very low surface brightness.
Dicas de Observação
A difficult target due to extremely low surface brightness. A dark sky site is essential. Use a wide-field telescope at low power to detect this elongated smudge. Averted vision is necessary. Best viewed in spring evenings when Draco is well placed.
História
Discovered by William Herschel on April 6, 1793. Its membership in the M81 galaxy group was confirmed through distance measurements.
Curiosidades
NGC 4236 is one of the galaxies nearest to the Milky Way yet one of the hardest to observe because its light is spread over such a large area. Photographs reveal beautiful HII star-forming regions along its spiral arms.
Fotos da Comunidade (1)
Credit: Mattrsmith77. License: CC BY 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026