The small residual comet drift is most probably because of field rotation around the guide star because of the quick polar alignment and poor guide scope parallelism. To show the result I make an animated GIF of the six RAW images just stretched and cropped, without any alignment: But I wanted to be sure to show the comet movement so I keep at 0.95"/pixel. The seeing was unfortunately bad and I have normally imaged with a shorter focal length on this night. The guide scope is a Skywatcher achro 80/400, the guide camera a DMK21.Īll running on Win7, I not wanted to mix Linux problem at this time. The main camera is an Atik 314L+ drived by APT. I take 6 x 10 minutes exposure with my 8" f/d7 Newtonian on a HEQ5 + Eqmod. The drift rate Arcsec/hour computed by CdC was 12 in RA and -37 in Dec. The target is C/2014E2 Jacques on October 22 between 19h56UT and 20h56UT. It's an application, perhaps, without the shine of Stellarium or the OpenGL acceleration of KStars, but it does offer a sensible clear and predictable way to learn about the night sky and plan an evening out beneath the stars.Finally I find some time, telescope access, and clear night to test the comet drift. With comet and asteroid data, you can target even transitory objects as they cross the sky. You can also control this hardware directly, thanks to the integrated support for LX200, INDI, and ASCOM telescope controllers. By adding the configurable telescope reticle to predict the field of view, you'll be able to see through your hardware. If you look at the task manager, you will see the CPU demand on your system. In addition the position of planets, asteroids and comets are shown. The graphic is generated one image at the time. This helps you see two different zoom levels of the same area, for example. 37 alternatives to Cartes du Ciel (Skychart) This program enables you to draw sky charts, making use of the data in 16 catalogs of stars and nebulae. CDC includes the ability to control computerized GoTo telescope mounts, is ASCOM and INDI compliant, and supports the USNOs UCAC catalogs and ESA Gaia data. Also you can use the include interface for Meade/LX200 protocol or a simple encoder interface. Any telescope model supported by INDI must work with Cartes du Ciel-Sk圜hart. One of Cartes du Ciel unique features is that you can open multiple windows on the sky at the same time. Does Cartes du Ciel-Sk圜hart V3.0 for Mac/Linux support telescope tracking Yes, Cartes du Ciel-Sk圜hart V3.0 can use INDI to interface the telescope. This window also generates a real-time view of your selected solar body, which helps you see the red spot on Jupiter, for example, or the current phase of the moon – even on a cloudy night! Another window lets you see what's visible in the solar system, including what time an object rises and when it sets. You can also create a list of the stars you wish to observe directly within the application, and there's a very useful pane that can be opened to list all the things you can currently see in the display. You can also change the appearance of the charts, removing the color or the way the stars are rendered, and this is ideal if you want to print out your plans. This is helped by a huge star catalog, and you can keep adding more objects to the view until there's no room left on the screen. It's diagrammatic more than realistic, and it's the best approach when you want to manually find a star in the sky, because you then need to work your way around the obvious signpost stars and constellations to find the object for which you're looking. The charts, for example, resemble the kind you used to see printed in newspapers and still see in astronomy-related publications and websites. It's this clarity that makes Cartes du Ciel a standout. This is what you need if you're planning a night of real-life observations with a telescope, rather than a virtual preview of what the sky above you might look like (this is something that KStars also does very well). But rather than go for Stellarium's realistic approach, it attempts to make their positions clear and discoverable. Like Stellarium and KStars, Cartes du Ciel is a tool that maps a star's position in the night sky. And the name tells you all you need to know about this great application, an application that's been in development since the early 2000s. The English translation for the name of this application is "Sky map" or "Sky chart," but this app's French name, Cartes du Ciel, sounds so much more romantic that we'll stick with it.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |