M81 and M82 at halfway point

[perfrej]

Hi all!

Currently sucking M81's and M82's photons from our remote observatory at Olly's and have reached a half-way point; 5 hours each of L, R, G and B. Throwing it together reveals that:

• it is really good data
• I need to do more LRGB as I feel really unsure of all this.

I will practice a lot this spring though, at least that is the promise to self.

20 subs in each channel, 15 minute exposure. Strange processing in PI, MaximDL and Photoshop. Capture with ACP.

10Micron GM2000HPS II

QSI 683 wsg8 with Astrodon filters

TEC-140

Everything unguided.

Look at the high res and count galaxies

Full res: http://filer.frejvall.se/M8182Prov1.jpg

[kalasinman]

I can't count that high, even with my shoes off!

[Phillyo]

Great start Per!!

Just curious, why only 15min subs?

Phil

[perfrej]

I really have no rational explanation for 15 minutes. I kind of figured that once I get my base level above the BIAS I'm OK. I will try a few hours of 30 minutes and see what it brings

/per

[Phillyo]

I'm no expert, haha not by a LONG shot, but I have seen a few other people grabbing this target the last few weeks and those hitting 30min subs have seen some wonderful detail coming through, even the IFN is being seen. With your kit i'm sure 30min subs would bring more to the party

Phil

[peter shah]

a superb shot the high res it incredible and the IFN is showing up nicely   you wont have any issues at 30mins not at Olly's place

[lensman57]

Masterful capture and processing. I counted 16 galaxies around M82 only and then my eyes gave up.

Regards,

A.G

[blinky]

a superb shot the high res it incredible and the IFN is showing up nicely   you wont have any issues at 30mins not at Olly's place

I agree, there is a massive amount of the IFN showing up!  One thing though, I had to download the image and open it in photoshop as the blacks seemed reallly clipped, a little stretch and the IFN showed up nicely - is this my monitor or the image?

[Dave_D]

Everything unguided.

Look at the high res and count galaxies

rub it in why don't you? 

[Zadoq]

I think to myself "very nice image" ... and then I open the high-res image... wow...

Unguided as well...

[perfrej]

Thanks folks!

Yes, there is IFN although I haven't quite tried to scoop it out yet. Interested in getting more of it in the color bands as well... 30 minute plans have been entered.

/per

[perfrej]

rub it in why don't you? 

Yep! UNGUIDED 

/per

[ollypenrice]

I think 30 minute subs will pop the IFN. I used 30 minutes at F5 so you won't have any issues at F7. I'd suggest a lot, though. I had 18x30 Lum at F5 and it wasn't excessive. It still needed lots of bad behaviour in Photoshop!!! 

Focus and tracking are really top class giving wonderful small-scale detail. I wonder if you ran SCNR green? If not I'd give it a try.

Olly