18/04/2026
π California Nebula (NGC 1499)
A wide, faint emission nebula in Perseus, glowing mainly in hydrogen-alpha and illuminated by the bright star Xi Persei (Menkib). Because it stretches across a huge area of sky, it works far better as a mosaic target than as a single frame.
π Taken at Kelling Heath Star Party (Astrocamp), Norfolk, UK on the 20th of March 2026 β a great chance to work under some of the darkest skies in the UK.
π§ Coordinates (J2000)
RA 04h 03m | Dec +36Β° 25β²
π Captured with DWARF 3, using a 4-panel mosaic to cover the full length of the nebula.
π οΈ Processing: 4-panel mosaic with two datasets combined.
Dual-band (HΞ±/OIII): 60s, gain 120 β nebula signal
Broadband (RGB): 15s, gain 60 β stars + banding control
~5h total integration.
Stacked/assembled in Stellar Studio, then blended in Pixinsight to smooth gradients, reduce dual-band colour banding, and restore natural star colour.
Workshop will be available shortly.
β¨ It is not a nebula that shouts at you straight away. Most of its beauty is in the subtle structure β long soft clouds of hydrogen spread across the field β and that makes it a really satisfying one to build carefully.