NGC 300 revisited. Two telescopes are better than one? (Brian Boyle)

Celestial hemisphere: Southern · Constellation: Sculptor (Scl) · Contains: NGC 300

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NGC 300 revisited. Two telescopes are better than one?

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NGC 300 revisited. Two telescopes are better than one?

Recently I posted an image of NGC300 taken with my RC8 in less than optimal conditions (haze, 5-6arcsec seeing).

After having seen some of the spectacular images of this galaxy on Astrobin, I resolved to get a better image. Given the ongoing bad weather here, I took to opportunity to sneak in a 2.5 hour session using the Chilescope 500mm Newtonian, only be to frustrated by 3-4arcsec seeing during the run. While the Chilescope data had better seeing (just), it was a little noisy give the limited exposure Tim, particularly in luminance.

So I decided to combine the two data sets together both ChileScope and my own observatory data at Speargrass Flat.

I was rather surprised at the result. The 4hours luminance data on the RC8 helping reduce the noise on the 30min luminance data from to 500mm. And the 3-4arcsec seeing on Chilescope, helping to sharpen the RC8 data. I did sharpen the RC8 data quite heavily before combining (much more than I normally do) trying to much the image sizes as far as possible, but the addition of the Chilescope data helped to counteract the sharpened look of the data.

Other than that, I didn't do much else that was particularly sophisticated (a bit of fiddling with the colours and intensity levels) but I was pleased with how well it worked out.

The good folks at ChileScope gave me a credit for the poor seeing data. I hope they don't want to take it back now.

Observations

L: 12 x 180s (ChileScope) + 45 x 300s (Speargrass Flat)
R: 12 x 180s + 15 x 300s
G: 12 x 180s + 15 x 300s
B: 12 x 180s + 15 x 300s
Ha : 20 x 180s + 20 x 300sec

PS This sort of observation doesn't really easily fit into the Astrobin submission form, but I have done my best.

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Status	Advanced success
Started	...
Astrometry.net job	5114778
PixInsight job	HUS5UHFNN54V2PCR38WQ85G84IBB4JHP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h54m53s.389
RA (top/left)	00h53m00s.780
RA (top/right)	00h57m36s.687
RA (bottom/right)	00h56m45s.927
RA (bottom/left)	00h52m11s.694

Dec (center)	-37°40′30″.70
Dec (top/left)	-38°06′15″.51
Dec (top/right)	-37°51′42″.23
Dec (bottom/right)	-37°14′47″.66
Dec (bottom/left)	-37°29′14″.10

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NGC 300 revisited. Two telescopes are better than one?

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NGC 300 revisited. Two telescopes are better than one?

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