Jump to content

Narrowband

step_hen

Members
  • Posts

    910
  • Joined

  • Last visited

Reputation

109 Excellent

2 Followers

Profile Information

  • Location
    Winchester

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. I use the same reducer as WolfieGlos on my Starfield. Works very well. The 0.6x reducer looks interesting. Anyone got any real world experience of using it with the Starfield?
  2. This is JUST visible over and between the rooftops and trees from my site for around a week each year. Rosette Nebula, aka the Skull nebula, and my wife says she sees a fish head 🤷🏽 Taken with Stellamira 90ED refractor and ASI533MC-P camera and LEnhance filter over three nights. 8hrs 35min of total exposure. Processed in Pixinsight.
  3. Wow. So much to see. Amazing work Olly and team. I've just bought a Samyang 135! Stephen
  4. Here is my effort. First time processing SHO data and I think I like it. Might need to invest in a mono setup in future! Processed in Pixinsight as follows Graxpert on all three images Linear Fit to Si BlurX and NoiseX to all three images Combine with ForaxxPaletteUtility (I tried various combinations of HOO, SHO with and without luminance layers and preferred the Foraxx outcome) Remove stars with StarX and stretch stars only image with histogram transformation GHS on starless image Colour masks to increase the saturation using curves Contrast enhancement using Curves some local histogram equalisation to enhance the details DarkStructureEnhance script Rescreen Stars Slight star reduction Thanks for providing the data! Stephen
  5. With the skywatcher flattener, you can insert a filter into the rear cell and hold it in place using the three grub screws. I screwed the filter itself into a 'donor' empty filter holder ring first so as to not damage the expensive filter with the grub screws. Then attach the camera and you had the correct back spacing for my 533MC. The Starizona flattener inserts into the OTA, and can therefore handle the more standard 55mm backspacing allowing the use of a filter wheel. It doesn't seem to flatten the field as effectively though. The new BXT AIv4 has helped with the corner star shapes!
  6. Thanks. Yes I've just switched to the Starizona Flattener from the skywatcher one. Harder to get the back focus distance correct, but allows the use of a filter wheel.
  7. I was hoping to add more imaging time to this but the UK weather hasn't been kind recently ☹. This is NGC1499, the California Nebula, shot with Evoguide 50mm ED Refractor using L Enhance dual narrowband filter on a ZWO ASI533MC Pro camera. Just under 8hrs total integration. It's a huge object! An emission nebula in the constellation of Perseus, said to resemble the shape of the state of California when viewed in full at the right angle. Just under 8hrs total integration time made up of 5min subs, shot over three nights in November and December. Processed in Pixinsight using Graxpert, SPCC, BXT, NXT, SXT, GHS, NBN, Curves, stretch stars and rescreen.
  8. I use a toilet tent for a semi-permanent setup. It can be pegged down at each corner and has pockets internally for weights for added security. It's stayed stable in several of the named storms we have had in the UK over the past year. I cover the mount with a towel and a waterproof cover inside the tent and keep dew heaters running to stave off the condensation. It's easy to un-peg and lift the tent over the mount to start observing, and makes a suitable shelter near the telescope for a laptop table or for providing shade for solar observing.
  9. A couple of lunar images from last week, 24th November. First is the Mare Insularum region, dominated by the craters Copernicus and Kepler with their bright 'rays'. Toward the upper left is Aristarchus at lunar dawn and Schroters Valley just appearing out of the darkness. Second image is Sinus Iridum- the bay of rainbows with the dark lava fields of Mare Imbrium in the foreground and the Jura mountains and Mare Frigoris behind. Shot with 6" Classic Cassegrain telescope, ASI178MM mono camera and an IR pass filter using Sharpcap Pro. Stacked in Autostakkert3, sharpened in Registax and finished in Photoshop.
  10. Yes it does look a little darker on my phone than it did on my monitor actually.
  11. I had a friend make up an adapter so that we could attach the 'quark' unit removed from a Daystar Solarscout (60mm) to my larger Starfield 102ED refractor. Here is the first image, a composite of two different exposures. 100 frames stacked out of 1000 taken in Sharpcap, processed in AS3, Registax and Photoshop. Lots of high hazy cloud and rough seeing so pleased to get a good first test image Stephen
  12. Full disk 19 June in CaH ED80, Calcium Quark and ASI533MC Stacked in AS!3 and processed with Registax.
  13. Sun in Calcium 19th June 23. Some lovely proms visible today! 250 frames stacked out of 1000 captured using ASI533MC and Ca H Quark on an ED80. Processed in PIPP, AS!3 and Registax6, finished in Photoshop
  14. Full disk 16 June in CaH ED80, Calcium Quark and ASI533MC Stacked in AS!3 and processed with Registax.
  15. First time using the CaH Quark, attached to a Skywatcher ED80. Plus Ha from Daystar Solarscout, once again loaned from my astro society. ASI533Mc Pro used in both scopes.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.