|
|
|||||||
|
|
Thread Tools | Display Modes |
|
#1
May 18th 07, 02:26 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
ASTRO: M101 Pinwheel galaxy
Hi all,
Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk 
|
|
#2
May 18th 07, 08:06 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
|
ASTRO: M101 Pinwheel galaxy
that came out nice Dirk
Congratulations one suggestion for processing; if you use photoshop cs, try select/highlights followed by select/expand (by about two pixels) then select/feather (by about 4 pixels) then filter/gaussian blur (about 1 pixel) that will give the stars a rounded edge so that they don't have the 'flat top' profile and a bit softer edges. That usually makes the image look a bit nicer. "D van den H" wrote in message bel.net... Hi all, Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk
|
|
#3
May 20th 07, 08:53 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
|
ASTRO: M101 Pinwheel galaxy
Dirk,
both your M101 and M63 have very nice detail. Is this with a focal reducer? Looks much sharper than without. Stefan "D van den H" schrieb im Newsbeitrag bel.net... Hi all, Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk
|
|
#4
May 20th 07, 10:04 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
|
ASTRO: M101 Pinwheel galaxy
Thx Stefan, yes they are with 6.3 reducer.
When you use a focal reducer on your 8" do you also have that big ring in your pictures (reflection of your primairy)? Just curious, because i have a hell of a time removing them from my images.. reg Dirk "Stefan Lilge" wrote in message ... Dirk, both your M101 and M63 have very nice detail. Is this with a focal reducer? Looks much sharper than without. Stefan "D van den H" schrieb im Newsbeitrag bel.net... Hi all, Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk
|
|
#5
May 21st 07, 05:33 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
|
ASTRO: M101 Pinwheel galaxy
Dirk, I don't have big rings in my pictures, unless you are talking about
the "usual" vignetting, which is much more obvious than without the focal reducer. Do you use flatfield images? If not that might cure your problems (even though I can't see any problems in this picture). Stefan "D van den H" schrieb im Newsbeitrag bel.net... Thx Stefan, yes they are with 6.3 reducer. When you use a focal reducer on your 8" do you also have that big ring in your pictures (reflection of your primairy)? Just curious, because i have a hell of a time removing them from my images.. reg Dirk "Stefan Lilge" wrote in message ... Dirk, both your M101 and M63 have very nice detail. Is this with a focal reducer? Looks much sharper than without. Stefan "D van den H" schrieb im Newsbeitrag bel.net... Hi all, Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk
|
|
#6
May 21st 07, 05:37 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
|
ASTRO: M101 Pinwheel galaxy
I never noticed it untill my recent images..
And yes i try to make flats, but that was never necessary in the past.. Btw is mysky.org gone forever? reg Dirk "Stefan Lilge" wrote in message ... Dirk, I don't have big rings in my pictures, unless you are talking about the "usual" vignetting, which is much more obvious than without the focal reducer. Do you use flatfield images? If not that might cure your problems (even though I can't see any problems in this picture). Stefan "D van den H" schrieb im Newsbeitrag bel.net... Thx Stefan, yes they are with 6.3 reducer. When you use a focal reducer on your 8" do you also have that big ring in your pictures (reflection of your primairy)? Just curious, because i have a hell of a time removing them from my images.. reg Dirk "Stefan Lilge" wrote in message ... Dirk, both your M101 and M63 have very nice detail. Is this with a focal reducer? Looks much sharper than without. Stefan "D van den H" schrieb im Newsbeitrag bel.net... Hi all, Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk
|
|
#7
May 21st 07, 06:07 PM
posted to alt.binaries.pictures.astro
|
|||
|
|||
|
ASTRO: M101 Pinwheel galaxy
Mysky.org has been useless for several years now I think, so there is little
hope for a "revival". Stefan "D van den H" schrieb im Newsbeitrag bel.net... I never noticed it untill my recent images.. And yes i try to make flats, but that was never necessary in the past.. Btw is mysky.org gone forever? reg Dirk "Stefan Lilge" wrote in message ... Dirk, I don't have big rings in my pictures, unless you are talking about the "usual" vignetting, which is much more obvious than without the focal reducer. Do you use flatfield images? If not that might cure your problems (even though I can't see any problems in this picture). Stefan "D van den H" schrieb im Newsbeitrag bel.net... Thx Stefan, yes they are with 6.3 reducer. When you use a focal reducer on your 8" do you also have that big ring in your pictures (reflection of your primairy)? Just curious, because i have a hell of a time removing them from my images.. reg Dirk "Stefan Lilge" wrote in message ... Dirk, both your M101 and M63 have very nice detail. Is this with a focal reducer? Looks much sharper than without. Stefan "D van den H" schrieb im Newsbeitrag bel.net... Hi all, Did some shooting yesterday (pretty good seeing..) M101 Stack of: 2 x 240 sec 15 x 120 sec 10 x 90 sec. All unguided. Stacked in maximdl some brushing up in CS. Looks like this galaxy also colided in the past, the upper arm show sometraces of another arm that's pointing against the rotation of the other arms... Reg Dirk
|
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| M101 Galaxy (kind of Interesting) | G=EMC^2 Glazier | Misc | 7 | January 5th 07 09:39 PM |
| New Scientist SPACE - Breaking News - Hubble pictures Pinwheel Galaxy in all its glory | [email protected] | UK Astronomy | 1 | March 9th 06 09:36 AM |
| HUBBLE SNAPS IMAGES OF A PINWHEEL-SHAPED GALAXY (STScI-PRC06-07-Heritage) | INBOX ASTRONOMY: NEWS ALERT | Amateur Astronomy | 0 | February 7th 06 03:07 PM |
| HUBBLE SNAPS IMAGES OF A PINWHEEL-SHAPED GALAXY (STScI-PRC06-07-Heritage) | INBOX ASTRONOMY: NEWS ALERT | Astronomy Misc | 0 | February 7th 06 03:06 PM |
| ASTRO: M82 and M101 in LRGB | Richard Crisp | CCD Imaging | 0 | March 15th 04 01:53 AM |
Linear Mode
