M12

Description:

M12, the Gumball Cluster, a globular cluster.

This is also the first time I've used the APM refractor, picked it up the week before.


Constellation that it's located in: Ophiuchus


Imaging Site: Cleveland National Forest, Palomar Observatory Campground, California


For more information on M12:

Wikipedia


Date: 30 May 2008

Scope and f/: APM/TMB 152 at f/8, with APM flattener.

Mount: Takahashi NJP

Guiding: STV Deluxe with piggy-backed Mini Borg 45mm f/7.2 guidescope.

Camera: Canon 20Da, ISO 800 and raw mode.

Camera temperature: N/A

Camera binning: N/A

Number of sub-images and exposure: 11 182-second exposures.

Filters: None.

Image Calibration: Dark and flat frames.

Planning, control, capture and processing with: AstroPlanner, Equinox, Equinox Image, Nebulosity, and Photoshop.



Images may be used for personal and/or educational use only.