M45--The Pleiades
Reflection Nebula around Open Cluster
The Pleiades Star Cluster, in Taurus

Click here for higher-resolution versions: 1568x1024  2549x1665  3921x2561


M45: This is the Pleiades open star cluster. Merope is the lower right-hand star/nebulosity; there is a separate, high-resolution image of this beautiful area here. It is approximately 440 light years from Earth.


Technical Information:

BRGB: 255:105:105:105 (Luminance layer consists of seventeen 15-minute unbinned images through the blue filter; R, G and B consist of seven 15-minute images, all unbinned).

Equipment: Astrophysics Starfire 130 with Astrophysics field flattener, at about f/6.8; SBIG STL-11000M with internal filter wheel (Astrodon filter set), on a Bisque Paramount ME German Equatorial Mount.

Image Acquisition/Camera Control: Acquired automatically with ACP, running Maxim DL and TheSky v6.

Processing: All images calibrated (darks and dawn flats), aligned and combined in CCDStack. Luminance layer deconvolved in CCDStack. Color combine in Photoshop. Finish work (curves and levels; saturation; contrast; smart sharpen) in Photoshop.

Location: Data acquired remotely from the Tejas Observatory, located on the grounds of New Mexico Skies, near Mayhill, NM (elevation 7300 feet).

Date: Images taken during the nights of December 7, 12 and 13, 2007.

Pixel scale: 2.1 arcseconds per pixel.

CCD Chip temperature: -25C

Seeing: Good.

Transparency: Very good

Moon Phase: No moon during imaging

Copyright 2007 Mark de Regt

hosting forum
Hit Counter