Jørgen AM
A bit more data on M42...
Some more data of M42 at around 15 degrees elevation, imaged at 69.7 degrees northern latitude.
A total of 58 minutes (29x120sec) imaged on two nights at a Bortle 4 location outside Tromsø. Northern lights+poor seeing made guiding a challenge on the second night. Also, strong northern lights activity saturated the light frames after only 20 minutes on the first night. Auroral activity is quite high when it fills the sky all the way down to the southern horizon.
Equipment:
William Optics RedCat51
Optolong 1.25" L-pro
ZWO ASI183MCpro
Uniguide 32 (guidescope)
ZWO ASI178MM (guide cam)
Skywatcher AZ/GTi-mount in EQ-mode
ZWO ASIAIR plus
Omegon Powerbank 38k 144Wh 12V
Stacked and edited in Pixinsight using BXT version2 (AI2), and GraXpert for backgroundextraction of green auroral gradient. Simple histogram stretch and manual color/saturation adjustments. No noise-reduction.
A bit more data on M42...
Some more data of M42 at around 15 degrees elevation, imaged at 69.7 degrees northern latitude.
A total of 58 minutes (29x120sec) imaged on two nights at a Bortle 4 location outside Tromsø. Northern lights+poor seeing made guiding a challenge on the second night. Also, strong northern lights activity saturated the light frames after only 20 minutes on the first night. Auroral activity is quite high when it fills the sky all the way down to the southern horizon.
Equipment:
William Optics RedCat51
Optolong 1.25" L-pro
ZWO ASI183MCpro
Uniguide 32 (guidescope)
ZWO ASI178MM (guide cam)
Skywatcher AZ/GTi-mount in EQ-mode
ZWO ASIAIR plus
Omegon Powerbank 38k 144Wh 12V
Stacked and edited in Pixinsight using BXT version2 (AI2), and GraXpert for backgroundextraction of green auroral gradient. Simple histogram stretch and manual color/saturation adjustments. No noise-reduction.