
🐬 Dolphin Nebula (Sharpless 2-308)
follow - share - credit
www.instagram.com/ale_motta_astrofotografia
Drifting through the cosmic sea, a luminous dolphin dances among the stars, inviting wonder.
The Dolphin Nebula, also known as Sharpless 2-308, is an immense bubble of glowing gas and dust located in the constellation Canis Major. This ethereal structure was sculpted by powerful stellar winds from a massive Wolf–Rayet star, forming a glowing shell of ionized hydrogen — an H II region.
Spanning about 60 light-years, the nebula glows softly in the light emitted by oxygen and hydrogen atoms, offering a view both haunting and beautiful.
🔭 Quick Facts
• Apparent magnitude: ~7.0
• Distance from Earth: ~4,530 light-years
• Coordinates (J2000): RA 06h54m13s, Dec –23°55′42″
• Constellation: Canis Major
• Angular size: ~35′ × 35′ (similar to the full Moon)
💫 Cosmic Highlights
• At the heart of the nebula lies EZ Canis Majoris (WR 6), a hot, massive Wolf–Rayet star.
• Its intense winds have blown a vast bubble into the surrounding space over the past 70,000 years.
• The nebula’s ghostly blue hue is due to emission from doubly ionized oxygen (O III), giving it a haunting appearance.
The Dolphin Nebula is a cosmic reminder that even in stellar endings, beauty emerges. Through turbulence and transformation, the universe creates extraordinary forms that inspire awe and curiosity. Keep looking up — the cosmos always has more to show us.
Lights: 48x300" and 48x600"
Telescope: Takahashi FSQ-106ED
Camera: Camera QHY 600M
Filters: Halpha, OIII, SII Astrodon