Search found 198 matches

by John O'Mahony
Tue Jan 19, 2010 2:02 pm
Forum: Gallery & Techniques
Topic: Winter favourites
Replies: 10
Views: 19614

Jeez,.... I really need to get a proper monitor, I can't see the green colour at all :?
Thanks for the loan of the book and CD Frank. I'll pop into Pj's on Wednesday afternoon.
by John O'Mahony
Sun Jan 17, 2010 2:42 pm
Forum: Gallery & Techniques
Topic: Winter favourites
Replies: 10
Views: 19614

I did some processing in PS to see what I could do. I have reprocessed M45 and the Rosette using a mask subtraction and Gaussian blur to try and remove some of the background noise and graininess. See what you think...... http://farm3.static.flickr.com/2693/4281863326_a6f7e12e43_b.jpg http://farm5.s...
by John O'Mahony
Wed Jan 13, 2010 8:27 am
Forum: Committee Announcements
Topic: Merchandise available with club logo
Replies: 5
Views: 15258

Dave

Do we order through you or simply order what we want online ourselves?
by John O'Mahony
Sun Jan 10, 2010 11:55 am
Forum: Gallery & Techniques
Topic: Pleiades M45
Replies: 1
Views: 10208

Pleiades M45

I stacked some 3 minute frames to the 5 minute ones in my M45 picture that I had taken the previous night to give a 1hr 25 minute capture in total. It has teased out a bit more of the nebula and is a little less grainy. The bottom of the picture is bit clipped due to a mismatch in the framing betwee...
by John O'Mahony
Sat Jan 09, 2010 4:10 pm
Forum: Gallery & Techniques
Topic: Winter favourites
Replies: 10
Views: 19614

I managed to get out in the cold last night and take some more shots. The fog rolled in before I could take some extra horsehead shots Rosette nebula 17 x 5 minute subs. Megrez 72 Canon 450D (unmodded). Darks (6) and flats (10) taken. Fog rolled in at frame 18 !! No autoguiding used. farm5.static.fl...
by John O'Mahony
Thu Jan 07, 2010 12:17 pm
Forum: Gallery & Techniques
Topic: Winter favourites
Replies: 10
Views: 19614

Sure. They are not properly processed- levels and curves only in Gimp but the raw data looks good. These jpegs don't do it justice
by John O'Mahony
Thu Jan 07, 2010 11:12 am
Forum: Gallery & Techniques
Topic: Winter favourites
Replies: 10
Views: 19614

Winter favourites

Here are a few shots that I managed to take last night. Boy was it cold. My camera battery started to pack in before I could get more frames. I have only crudely processed the images at this point. All were taken with a WO Megrez 72and unmodded Canon 450D on a CGE without guiding. M45 http://farm3.s...
by John O'Mahony
Mon Jan 04, 2010 7:44 am
Forum: Observing Sessions
Topic: End of year observing session?
Replies: 17
Views: 17555

It eventually took off. She got back yesterday evening. A software problem on the plane apparently. They had to put 550 people into hotels that night. Its a big plane but no more spacious inside in economy -they just cram more people into it. The 777 or 747 is more comfortable but the inflight enter...
by John O'Mahony
Sun Jan 03, 2010 8:58 pm
Forum: Observing Sessions
Topic: End of year observing session?
Replies: 17
Views: 17555

Shannon seemed to be spared. Sunghwa managed to fly out on Friday afternoon when Limerick up to the outskirts of Shannon were in thick fog. Blue skies in Shannon!!
She got caught in Heathrow though for 18 hours due to a technical problem on the new A380 Airbus. :roll:
by John O'Mahony
Sun Jan 03, 2010 8:48 pm
Forum: Telescopes & Other Astro Gear
Topic: Fogging inside scope
Replies: 7
Views: 14987

It could be mould. Is it definitely on the inside of the corrector?
by John O'Mahony
Fri Jan 01, 2010 8:08 am
Forum: Committee Announcements
Topic: Lunar eclipse tonight, 31st December
Replies: 4
Views: 14401

Very nice Frank. :shock:
I managed to take a few shots but they didn't turn out well :(
by John O'Mahony
Tue Dec 29, 2009 4:19 pm
Forum: Gallery & Techniques
Topic: Mars
Replies: 9
Views: 20153

Nice shot Frank. What is the angular diameter of Mars in this shot? Did you use a barlow?
by John O'Mahony
Wed Dec 23, 2009 3:51 pm
Forum: General Posts
Topic: Happy Christmas
Replies: 2
Views: 4524

A Merry Christmas to all on the SAC boards.
by John O'Mahony
Sun Dec 20, 2009 3:28 pm
Forum: Committee Announcements
Topic: Club Christmas Get Together 2009
Replies: 10
Views: 20653

I am getting two addresses for souths pub. One at 100 O'connell st and one at 4 Quinlan street. I presume it is the Quinlan street address?? 100 O'Connell st is a solicitors office.
by John O'Mahony
Sat Dec 19, 2009 6:37 pm
Forum: Committee Announcements
Topic: Club Christmas Get Together 2009
Replies: 10
Views: 20653

So is it Souths at 8pm then? Is that the pub on O'Connell st?