Home > Uncategorized > The Moon: Narrowband as a Neutral Density Filter

The Moon: Narrowband as a Neutral Density Filter

Sometimes the moon just has you beat. With no significant narrowband targets in the sky and the moon well past a quarter, I figured I’d take its portrait before calling it a night. As with my previous image of the moon in conjunction with Venus, narrowband filters make great neutral density filters to dim the moon to level that doesn’t overwhelm the sensor.

This is a single 0.1 second exposure of the moon through an OIII filter using the AT8RC and an SBIG ST-8300M binned 1×1.
moon_o3

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