Thread: Ngc 5643
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Old 11-07-2024, 05:54 PM
markas (Mark)
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Join Date: May 2012
Location: Melbourne Australia
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Ngc 5643

This little galaxy in Lupus is not often imaged. It lies about 40 Mly to 60Mly away - depending on who you consult....
It is a Seyfert galaxy type Sac, with an active galactic nucleus.

It is about 45kly across, and is listed as MagV 13.6, and MagB 11.6, with a surface brightness of 23Mag/sq arcsec.

This image was shot from Mt Macedon over 2 nights in seeing conditions which varied from poor (2.8") to atrocious (8" !!!!!). I managed to keep a total of 5hours LRGB with a cut-off 4.8".
Rather than throw the whole lot out, I took to the data with a little help from BXT.......
FOV is 13' x 16'; Officina RiDK 300; Moravian C1X 61000 at analog gain 3.
Mark
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