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Technical card

Imaging telescope or lens: Orion Newtonian 10" f/5

Imaging camera: Canon 40D Modifed Canon 40D Modified DSLR

Mount: apt1200gto AP1200

Resolution: 1000x703

Dates: Oct. 13, 2007

Frames: 24x300"

Integration: 2.0 hours

Avg. Moon age: 1.61 days

Avg. Moon phase: 2.91%

Astrometry.net job: 1509651

RA center: 56.524 degrees

DEC center: 23.869 degrees

Pixel scale: 2.989 arcsec/pixel

Orientation: 176.855 degrees

Field radius: 0.508 degrees

Locations: ImagingInfinity Observatory, Bethune, SC, United States

Description

he beautiful Merope Nebula in M45, the Pleiades star cluster. The nebula reflects the blue light from the 4th magnitude star, Merope, embedded within it. It consists mostly of hydrogen gas and carbon dust particles. It is only one section of the much larger nebula encasing the entire Pleiades star cluster. Once thought to be the birth cloud of the stars within the cluster, studies of the velocities of the stars compared to the nebula reveal that we are seeing a lucky coincidence of the star cluster simply passing through the cloud at the present time. I have always been fascinated by the nebula's appearance of being "combed" by the intertwining magnetic fields in the area.

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Author

Hap Griffin
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The Merope Nebula in M45, Hap Griffin