id: 13061967
The Skull Nebula ?? (Rosette Nebula | NGC 2237–2246)
A vast glowing cloud of ionized hydrogen sculpted by powerful radiation from young, massive stars at its core. Carved by stellar winds, this cosmic rose reveals an eerie skull-like hollow deep in space.
✨ ~5,200 light-years away
✨ Spanning ~130 light-years
✨ Captured under Bortle 8 skies
? ~17.3 hours of integration
? Jaipur, India | Jan 7–9, 2026
? Imaging Details
Total Integration: ~17.3 hours
• Lights: 240 × 260s
• Darks: 20
• Flats: 30
• Bias: 30
Processing:
• Image 1 (Hα): Siril – standard OSC processing script
• Image 2 (Pseudo SHO): Siril Veralux Alchemy script
• Final touches: GIMP
? Equipment
• Camera: ZWO ASI533MC Pro (cooled OSC)
• Lens: Sigma 150–600mm Contemporary @ 500mm
• Filter: Optolong L-Ultimate Pro 2″
• Mount: Sky-Watcher Star Adventurer GTi
• Guiding: ASI120MM + SVBONY SV165 (30mm f/4)
• Acquisition & Control: ASIAIR Plus
? Location: Home terrace, Jaipur, India
? Sky Quality: Bortle 8
? Captured: 7–9 January 2026
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