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NGC/IC Project / Re: NGC/IC Project
« Last post by davidem27 on Today at 12:56:55 AM »
so who's good with web scripting?      we need someone to take point on building a simple framework for the ngcicproject website

Hello everybody,
my name is Davide Pistritto, astrofellow from Italy.
Surfing the web for some of my queries about DSOs, I saw that the epic ngcicproject was sadly down.

I am a web developer skilled in PHP, MySQL and frontend stuffs.
I would really like to get the epic website back to astrosurfers with my help.

Please let me know how can I do this.

Have a nice day and greeting to @sgottlieb
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Observing Reports / New Moon April, Peak and Pinnacles
« Last post by DDK on Yesterday at 06:08:03 PM »
Saturday night the 22nd I hit the SW lot at the Peak for observing. Between the Pinnacles and Dinosaur Point, I’d gotten distracted and away from the Peak; last time I was up there was June. This past weekend it was amazingly green everywhere, with lupines blooming across the park.

Got to visit with Derek the cool ranger, with his wife Hali and their two kids, Logan and Penelope. Lovely happy family. Also while hanging out around the Observatory, got to see Ron Dammann and Rob Hawley who are both flourishing to all appearances.

There were campers and astro visitors all over the park, but back at the SW lot it stayed quiet. High clouds played tag with the low fog that comes out of the little valley there around Carmen’s Trail. Did get more than a couple hours of decent skies though, with 5.8 limiting magnitude for a stretch.

Did an eye candy tour, featuring Jupiter with some fancy equatorial bands. The seeing was good enough to let the 4 Galilean moons show little disks. Saw M5 for the first time this year. Stared and gawked at M51, the Leo Trio, caught Cor Caroli and 24 Com for color.

Some time around 11, I had two excellent visitors, this little 6-year old Jack and his mom. Jack got to see Jupiter and M3, and showed off to his mama where the North Star is. Sharp kid.

Then last night, Wednesday, I headed to the Pinnacles for precisely New Moon. There were dense low dark curdly clouds over the whole sky at sunset, stayed that way till 8:50. Looked very skunking-like. A couple stars peeped thru after 9, then the whole sky opened up. For about an hour. Swear it was fun watching those stars come out in the quiet, with crickets and peepers and a low bass wind. Far as I could tell, I had the western half of that entire national park to myself.

Had serious detail on Jupiter, best in a long while. Great Red Spot, all kinds of festoons and curlicues along the main bands.
Still have all kinds of spring galaxies to hunt down. More of this.
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NGC/IC Project / Re: Corrected NGC v0 online
« Last post by sgottlieb on April 26, 2017, 10:13:02 PM »
I don't believe the NGC/IC Project site ever had labeled images of the IC objects -- or at best a very limited subset.  That said the basic data is available, along with Harold Corwin's identification notes and my visual notes on over 1000 IC objects.

I'll confer with Corwin as well as Akarsh on the easiest way to grab that data.
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TAC Imaging / Re: Lunar imaging question
« Last post by John Pierce on April 26, 2017, 03:18:47 PM »
I'd just adjust one factor, the gain, at least until you run into some sort of limitation....   lowering gain shouldn't increase noise, which is your biggest enemy.
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TAC Imaging / Re: Lunar imaging question
« Last post by Davids on April 26, 2017, 03:14:37 PM »
Oops, got to stop using alternative math.  I wasn't far off your exposure time then.  I guess I'll just have to play with gain versus exposure some more.  I could try a neutral density filter also, I have one that I use for visual observing, maybe that will help.

Dave
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TAC Imaging / Re: Lunar imaging question
« Last post by John Pierce on April 26, 2017, 03:08:49 PM »
1/200th is 5 milliseconds (1/200 = 0.005)

of course, I have no idea how to correlate your "gain" setting to ISO.
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TAC Imaging / Re: Lunar imaging question
« Last post by Davids on April 26, 2017, 03:03:24 PM »
I'm using Firecapture for camera control and it only gives me a gain control number from 1 to 100 and exposure times in milliseconds.  Based on your recommendation of 1/200th, that works out to an exposure of 300 milliseconds.

The shot I posted was done with a gain of 38 (38%) and exposure time of 4.125 milli seconds.  So it looks like to duplicate what you are talking about, I should drop the gain to about 4 and increase the exposure time to about 300 mSec.

I'll give that a try.  I'm glad I didn't wait to get this camera...the learning curve has been a bit steep for me.

Cheers,

Dave
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TAC Imaging / Re: Lunar imaging question
« Last post by John Pierce on April 26, 2017, 02:40:12 PM »
using a regular (DSLR) camera, I've based my lunar exposures on daylight. good old 'sunny 16' rule,   shutter speed == ISO at f/16.    f/10 (your C8) is about 1 stop faster than f/11, so if you're using ISO 100 equivalent, then try 1/200th.
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TAC Imaging / Lunar imaging question
« Last post by Davids on April 26, 2017, 02:22:39 PM »
Hi All,

I picked up an ASI130MM camera recently to use for the eclipse in August.  I figured I might as well practice on the moon also.  My question regards exposure time vs. gain and how to avoid washing out the brightest features.  I got this shot that turned out ok, but Copernicus and Aristarchus are over exposed and the other images I have during the same session that aren't just don't have the same detail (I know it could be seeing). 

I'm using a C8 (note to self, get a Crayford focuser), AutoStakkert for Stacking, and Registax 6 for wavelet processing.

Any suggestions are very welcome.

Cheers,

Dave
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NGC/IC Project / Corrected NGC v0 online
« Last post by John Pierce on April 26, 2017, 12:56:03 PM »
I've crudely organized the raw NGC html files I got from Akarsh in folders per 100, and put them up here, http://www.ngcicproject.org/NGC/  so at least there's SOMETHING here.

So who has the IC data?
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