Search found 1343 matches

by turfpit
Fri Mar 05, 2021 4:24 pm
Forum: Deep Sky Imaging
Topic: Dark Nebulas Detection - Integration time and subexposures
Replies: 2
Views: 58

Re: Dark Nebulas Detection - Integration time and subexposures

Some real world examples: https://www.astrobin.com/f9ss9i/?award=top-pick&nc=user , captured using LRGB frames of 300s and Ha of 600s under Bortle 1 skies using top spec equipment ($40,000 16" astrograph & $12,000 camera). Astrobin Top Picks of M78 https://www.astrobin.com/search/?q=m78...
by turfpit
Mon Mar 01, 2021 7:05 pm
Forum: Deep Sky Imaging
Topic: M45 Pleiades - Failure
Replies: 6
Views: 61

Re: M45 Pleiades - Failure

Let us know how you get on. Your query is fairly common.

This was my last M45 (heavily cropped), a 66mm refractor under Bortle 6 skies.

M45_70x90s.jpg
M45_70x90s.jpg (353.35 KiB) Viewed 41 times



Dave
by turfpit
Mon Mar 01, 2021 2:08 pm
Forum: Deep Sky Imaging
Topic: M45 Pleiades - Failure
Replies: 6
Views: 61

Re: M45 Pleiades - Failure

the Bresser has nice pin-sharp images of the stars in the eyepiece. Then, after attaching the Zwo I adjusted Sharpcap setting Swapping the eyepiece for the camera can result in a shift of the image and potentially being off-target. I used to work that way but consider following the steps below. The...
by turfpit
Sun Feb 28, 2021 8:52 am
Forum: Gallery
Topic: 97% waxing moon, mosaics, #25 red & IR cut filters
Replies: 4
Views: 79

Re: 97% waxing moon, mosaics, #25 red & IR cut filters

Thanks Tim. Rimae Darwin is a feature that is not visible at capture time but is only revealed after stacking & processing. before_and_after.JPG I have found the moon to be an interesting object. Because of the constantly changing illumination, 2 images of the same location taken 10 minutes apar...
by turfpit
Sat Feb 27, 2021 3:21 pm
Forum: Gallery
Topic: 97% waxing moon, mosaics, #25 red & IR cut filters
Replies: 4
Views: 79

97% waxing moon, mosaics, #25 red & IR cut filters

Captured 25th Feb 2020 around 19:30 - 20:30. Moon 97% illuminated, elevation around 50°. 1 hour of imaging gathered ~88gb of data. Celestron AVX mount, Celestron C8 SCT, Altair 183M camera & Skyris 618m camera. Processing with Autostakkert!3 (best 5% of frames stacked) & GIMP mosaics stitche...
by turfpit
Fri Feb 26, 2021 10:21 am
Forum: Gallery
Topic: 73% waxing moon, Clavius, 3 different cameras
Replies: 4
Views: 128

Re: 73% waxing moon, Clavius, 3 different cameras

Tim

The Skywatcher 127 MAK is f/11 with a focal length of 1500mm - which helps with lunar/planetary/solar. I also have a Celestron C8 which is f/10 with focal length 2032mm which is better still providing the seeing is good. I have never had any experience with Dobs.

Dave
by turfpit
Thu Feb 25, 2021 11:47 pm
Forum: SharpCap Beta Testing Forum
Topic: SharpCap 4.0 Beta Now Available
Replies: 143
Views: 15984

Re: SharpCap 4.0 Beta Now Available

Dominique

When SharpCap is in still mode the red highlighted will be visible.

still-mode.JPG
still-mode.JPG (60.52 KiB) Viewed 114 times

Dave
by turfpit
Wed Feb 24, 2021 11:16 pm
Forum: Gallery
Topic: 73% waxing moon, Clavius, 3 different cameras
Replies: 4
Views: 128

Re: 73% waxing moon, Clavius, 3 different cameras

Thanks Tim. I hope to revisit this using my Celestron C8. The 127 MAK does very well for a budget scope.

Dave
by turfpit
Wed Feb 24, 2021 8:49 pm
Forum: Gallery
Topic: 73% waxing moon, 4-panel mosaic with Skyris 618m camera
Replies: 0
Views: 43

73% waxing moon, 4-panel mosaic with Skyris 618m camera

Captured 22nd Feb 2020, moon elevation 60°. Skywatcher 127 MAK, Skyris 618m camera, IR685 filter, 0.5x reducer. High res image here https://www.astrobin.com/5f9h9b/?nc=user Each panel: 640x480, MONO16, 120fps, 7200 frames (1 minute capture),Gain 323/1000, Exposure 0.0014s Stack best 10% Autostakkert...