NGC 7293 - Helix Nebula
The Helix Nebula is the largest and brightest planetary nebula by angular size, appearing as large as half the Moon. It's the closest bright planetary nebula to Earth.
Distance: 655 light-years
Apparent Magnitude: 7.60
Apparent Size: 16' × 28'
Constellation: Aquarius
Object Type: Planetary Nebula (God's Eye)
Key Features:
- Largest planetary by angular size
- "Eye of God" appearance
- Cometary knots
- Central white dwarf
- 10,600 years old
Best Imaging Season: July - October
Optimal Integration: 6+ hours (OIII/Ha)
