Astrophotography by Rob


NGC 55


Location: Warrumbungle Observatory, Australia (149 11 E, 31 16 S)

Date: Various dates in September 2012

Camera: QHY-9 and QHY filters

Telescope: William Optics M120

Frames: Thirty 10 minute luminance frames and twelve 300 second exposures for each of RGB.

Processing: Stacked in CCDStack, balanced, curves, highlights and sharpening in Photoshope CS5.

Text from APOD: Irregular galaxy NGC 55 is thought to be similar to the Large Magellanic Cloud (LMC). But while the LMC is about 180,000 light-years away and is a well known satellite of our own Milky Way Galaxy, NGC 55 is more like 6 million light-years distant and is a member of the Sculptor Galaxy Group. Classified as an irregular galaxy, in deep exposures the LMC itself resembles a barred disk galaxy. However, spanning about 50,000 light-years, NGC 55 is seen nearly edge-on, presenting a flattened, narrow profile in contrast with our face-on view of the LMC. Just as large star forming regions create emission nebulae in the LMC, NGC 55 is also seen to be producing new stars. This gorgeous galaxy portrait highlights a bright core, telltale pinkish emission regions, and young blue star clusters in NGC 55.


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