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After a pretty dreary September and part of October, I was finally able to get out with students to do some viewing. Here are some of the objects viewed over two nights using Starlight Live software on my Borg 77edii (f/4) and Borg 125SD (f/5) with a Trius 694 mono camera. In most cases an IDAS NB-1 "nebula" filter was employed to help with the suburban light pollution in our skies. The first night (mainly 125SD) was much steadier and drier, but along the coast we take what we can get when it isn't raining! ;-D
It's so much fun to see these objects from less-than-optimal skies... I often intend to quit much earlier, only to find myself saying (over and over!) "... oh, look, <object> is coming up... I should just have a look at that before I pack up." And then another hour goes by!
- Greg A
Eastern & Western Veil
Comparison of FOV between two scopes on the NA Nebula
Again, FOV comparison on the Elephant Trunk Nebula
And again, with the Rosette Nebula
Pacman Nebula through the 125SD:
And Crab Nebula:
And the Cocoon Nebula:
Finally, a few wider shots of objects using the Borg77: Flame/Horsehead, California Nebula, Pelican Nebula and Andromeda Galaxy:
Had a quick search but not found much info, I've just 'transitioned' from DSLR to a CMOS (AA 183C pro)
Used to capture with APT or Backyard Nikon, save as RAW, DSS to stack and use autosave.tif to work on in Photoshop. Whats the general consensus on CMOS ?
So far trying APT or Sharpcap, saving as FITS, stacking in DSS still and using autosave.tif into Photoshop. I keep seeing fits liberator mentioned ?
Opinions gratefully received.
I have an Ultrastar Color camera. I'm having difficulty with Starlight Live on my iMac. I have the latest version installed. When I load the software the camera is connected, but when I try to acquire an image, I never see anything. The bar at the left bottom of the screen indicates the image is being acquired, but the software image screen remains black no matter how I change the exposure settings. It works perfectly on my Windows 10 pc, but I need to use it on my iMac. Any suggestions?
Thanks so much,
Hi there folks, at the moment I'm primarily a traditional, through the eyepiece observer, however I'm putting together a list of components/software that I will need going forward as I venture into the realm of EAA. Primary consideration for my EAA platform is that it be easily transportable with as small an on-site footprint as possible. My thought is that I want to be able to control everything remotely over WiFi, I have an abhorrence for spaghetti cabling, so want to be able to keep this situation down to a minimum. To this end I have put together a list of components which I think will facilitate the sort of observing platform that I am aiming for:
Item 1 - Polemaster from QHY and associated control software. I have both Alt-Az and Equatorial setups, however I see the equatorial as being the primary mount for EAA, hence the investment in Polemaster. The EQ is a Vixen SXW and the Alt-Az and Altair Astro Sabre.
Item 2 - Small footprint CCD/CMOS Astro-Camera (I'm thinking along the lines of the SX Ultrastar), and associate control software.
Item 3 - Guide camera (Although this may not be an immediate requirement bearing in mind my primary goal is near real-time observing rather than traditional CCD astro-photography). Thinking perhaps the Altair Astro GPCAM, or perhaps an older SX Lodestar. Associated software perhaps PHD2, what alternatives are there?
Item 4 - Computer stick or very small footprint PC capable of being fixed to either the mount or OTA, without seriously adverse weight impact. The device needs to have integrated WiFi capability and the ability to interface to guide camera, primary camera and Polemaster. Needs to be run from 12V DC supply.
Item 5 - Apple iPad (already acquired).
Item 4 poses the question, does such a device exists that will enable simultaneous connectivity to all three devices?
Immediately people may think of alternatives such as the Mallincam line of products, Revolution Imager etc... however I want to try and steer clear of the older analogue technology.
Is the suggested approach realistic, in getting me to where I want to be, if not, are there alternative ways of achieving the same goal? Would appreciate the forum’s thoughts, and in particular any insight from fellow forum members who may have taken a similar approach.
This is my first post here and I wish to introduce a little program i wrote.
This is a RAW to FITS batch converter. Converter supports many cameras vendors: Canon, Nikon, Pentax, Fuji, Konica, Hasselblad and so on.
May be useful for someone who shooting space with DSLR and wanna do a real science, search for variable stars for example.
Program is very simple (see attached screenshot), you just set input directory, output directory and few conversion options.
You can choose how to process color channels from the RAW file.
Possible options is:
- convert RGB to avarage grayscale
- store all three channels as separate images in a one FITS.
- store all three channels in a separate FITS's
- store only one selected channel
Converter supports multithreading conversion, depending on your cpu/cores count.
All data you entered in UI will store in FITS header. Some data (like exposure, date and camera model) may be acquired from the RAW file, this is preferable.
This is a free software licensed under GPLv2 license.
You can get it on github: https://github.com/olegkutkov/Raw2Fits
Program uses libraw library and i highly recommend to get latest stable version of this library instead of using your distro version. If you have multiple LibRaw versions on your system - please carefully check which version you linking and using in runtime. Correct Makefile if needed.
Libraw version older than 0.17 may not correctly extract EXIF data from the RAW files.
Also you will need cfitsio, any version is Ok.
User interface is built with GTK3 toolkit and tested with Gnome 3, Mate and Cinnamon DE on different Mint, Debian and Fedora distributions.
After executing 'sudo make install' command this program should appear in your Applications menu
Hope this program will be useful for someone.
I will be glad to hear your feedback, propositions and bug reports