Sh2-261 Lower's Nebula Sh2-261 | Lower’s Nebula

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Sh2-261 Lower's Nebula

Sh2-261 | Lower’s Nebula in Hubble Palette

27.5 hours of integration captured over four nights this January. This target is often overlooked due to its faintness, but the extended OIII shells are incredibly intricate when pushed.

Imaging at f/2.0 requires precise filter selection to handle bandpass shift. The Baader Highspeed SHO filters performed exceptionally well here, maintaining contrast across the frame despite the fast optics.

More of my work ony IG: Gateway_Galactic https://www.instagram.com/gateway_galactic/

Technical Specifications:
Scope: Celestron EdgeHD 9.25 + Hyperstar v4 (f/2.0)
Camera: ZWO ASI2600MM Pro
Mount: ZWO AM5
Filters: Baader Highspeed Narrowband SHO + RGB

Integration Details:
Ha: 12.4 hrs (248 x 180s)
OIII: 7.9 hrs (158 x 180s)
SII: 6.6 hrs (133 x 180s)
RGB Stars: 2 hours total (40 x 30s per channel)

Processing Details:
Pixinsight -
LRGB Combination
DBE
SPCC
BlurX/StarX/NoiseX
Narrowband Normalization
GHS

Photoshop -
Camera Raw Filter
Selective Color
Brightness & Contrast
Screen RGB Stars
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Sh2-261 Lower's Nebula Sh2-261 | Lower’s Nebula in Hubble…

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