NGC1499 (Sh2-222) California
The California Nebula (NGC 1499) is an emission nebula located in the constellation Perseus.
It is so named because it appears to resemble the outline of the US State of California on long exposure photographs.
It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually.
It can be observed with a Hβ filter (isolates the Hβ line at 486 nm) in a rich-field telescope under dark skies. It lies at a distance of about 1,000 light years from Earth.
Its fluorescence is due to excitation of the Hβ line in the nebula by the nearby prodigiously energetic O7 star, xi Persei
[wiki]
Photo Details
Telescope: CFF92 apo (at 420 mm)
Camera: Asi2600 mm p
Mount: NJP Takahashi
Guiding: Off-axis Lodestar
Exposure: H 30x10min RGB 1x5min each
When: Sept 2021
Other information: Taken in the city of Tarnow 
Photo Details
Telescope: FSQ106EDX (530 mm) Takahashi
Camera: Sbig ST-8300, CFW Baader HLRGB filters
Mount: NJP Takahashi
Guiding: Off-axis QHY5
Exposure: 2-panels H10x30min RGB7x8min
When: Fall 2011
Other information: All taken in the city of Tarnów Poland
Photo Details
Telescope: FSQ106EDX (530 mm) Takahashi
Camera: Sbig STL1100XM, internal Sbig Filter wheel, Baader 50mm round HLRGB filters
Mount: NJP Takahashi
Guiding: self-guided
Exposure: Ha 18x30min RGB 5x8min each
When: October/November 2015
Other information: All taken in the city of Tarnów Poland