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AstroTips.com - Astronomy Software and Amateur Observation Resources -- Downloads
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Main / Windows / Telescopes - Guiding, ATM & OpticsSort downloads by: Title (A\D) Date (A\D) Rating (A\D) Popularity (A\D)
Resources currently sorted by: Title (Z-A) Your Observing Sessions Telescope Parameters  | | Description: | Which is the best eyepiece for today's observing session? What is the maximum recommended magnification for my scope? What is my scope's light gathering power?
This simple and easy to use Microsoft Excel spreadsheet calculates the most relevant telescope parameters for your observing sessions.
You need to have MS Excel or compatible installed on your computer. Just unzip the downloaded file and you are ready to use it! | | | Version: | 1.0 | | Filesize: | 32.68 Kb | | Added on: | 26-Feb-2004 | | Downloads: | 757 | | Rating: | 8.7 (3 Votes) | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | Comments (1) | |
| WinLens | | Description: | Optical Design Software to create systems with LINOS Photonics and custom components.
The LINOS Photonics components are specified by simple part nos, making this an ideal tool for component selection and for system development and analysis with serious optical engineering features. Ideal for learning and teaching technical optics too.
System features include:
• handles systems with rotational or cylindrical symmetry
• component orientated - singlets, doublets, air-spaced doublets, triplets, blocks & mirrors
• system can have unlimited components in multiple zooms (RAM limited)
• each zoom can have different conjugates, field and apertures sizes and wavebands
• import/export to/from files in other formats
Huge databases of lens and glasses. Plenty of analysis and design functions. | | | Version: | 4.3.5a | | Filesize: | 6.32 MB | | Added on: | 19-Aug-2003 | | Downloads: | 415 | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | |
| TMTCalc | | Description: | Two Mirror Telescope Calculator, includes cassegrain and gregorian like telescopes. The data will be outputed in tabular form and can be exported to other programs per drag & drop. Comes with comfortable print preview. | | | Version: | 1.0 | | Filesize: | 312.50 Kb | | Added on: | 04-Aug-2004 | | Downloads: | 534 | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | |
| Three Axis Telescope Control | | Description: | Graphical simulation of the three-axis mount. The software allows you to manipulate the telescope using several different coordinates. Direct control of the telescope axes is done through the a1, a2, and a3 sliders. As these sliders are moved, the altitude, azimuth, hour angle, declination, and field rotation sliders will be updated appropriately. If the field rotation slider is adjusted, the telescope will remain pointed at the same location in the sky, but will rotate about its optical axis. If the altitude, azimuth, hour angle, or declination sliders are adjusted, the telescope will move to point at the new position while keeping the field rotation constant.
Availabe for Windows, Linux and as source code.
Note: The author is also working on a real-time control software (not available yet) for three-axis mounts. | | | Version: | 1.0.1 | | Filesize: | 2.77 MB | | Added on: | 09-Dec-2004 | | Downloads: | 474 | | Rating: | 9.0 (1 Vote) | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | Comments (1) | |
| TelOptiCulator | | Description: | Input a certain amount of data (focal length, aperture, eyepiece...) and the program calculates the magnification; focal ratio; true field of view; maximum amplification power and theoretical resolution of a telescope. Also has a tool to compare the size of the field of view with the one of the moon.
A real must have for all those owning a telescope, or in the process of choosing which one to buy. User friendly display. | | | Version: | 3.08 | | Filesize: | 1.95 MB | | Added on: | 03-Aug-2003 | | Downloads: | 1426 | | Rating: | 4.2 (3 Votes) | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Rate resource | Details | Comments (2) | |
| Telescope Optical Parameters Calculator [BROKEN] | | Description: | A simple utility to calculate various telescope characteristics both related with the theoretical performance (given the aperture and f/ratio values) and eyepieces: « eyes = surface area of objective divided by area of 5mm human eye pupil; Magnitude = limiting magnitude of dark adapted eye under very dark, clear skies, using an unobstructed objective of the given size. Assumes unaided eye can perceive Mag 6.2 stars; Res (arcseconds) = Dawes Limit theoretical resolving power of diffraction limited, unobstructed objective; Low Useful X = lowest useful magnification. Determined by power at which the exiting light cone will just fit in a fully dialated 7mm pupil; Low Pract. X = lowest practical magnification. Determined by power at which the exiting light cone will just fit in a normally dialated 5mm pupil; Hi Pract. X = magnification at which unavoidable diffraction effects begin to be apparent, limiting further resolution. Roughly 35X per inch of objective aperture; Hi Useful X = magnification at which Airy disc is obvious. Further magnification produces no additional information or benefit. Useful only for close double stars. 60X per inch of objective aperture; F.L.(mm) = focal length of eyepiece, in millimetres. A.F.(deg) = Apparent Field of view, measured in degrees. The angle of view the eye sees when presented with the magnified True Field; Mag (X) = Magnification power. Calculated by: Objective Focal Length divided by Eyepiece Focal Length. Usually a very good approximation of angular magnification; T.F.(deg) = True Field. The actual angular space included in the view. Much smaller than Apparent Field; Brightness = Relative surface brightness of magnified view. The image is made brighter by the increased light gathering power of the objective, yet it is made dimmer by the spreading effect of magnification. A 5mm eye pupil is used as the basis for this calculation. Any value greater than 1.00 (one) is meaningless; Exit Pupil = the diameter of the light-cone exiting the eyepiece. Measured in millimetres.»
New features:
- Editable Eyepiece Chart - Focal Lengths and Apparent Field of View may be modified by user.
- Image Scale - photographic guideline. Given in Degrees per Inch.
- Minor Improvements - cursor roll-over hints, dynamic sizing of Performance and Eyepiece grids for various screen and window font sizes.
Notice: the program seems to suffer from the known decimal separator bug (in some countries Windows uses a coma instead of the dot). If you get a «floating point» error, just replace the «.» (dots) by «,» (comas) in the eyepiece list. | | | Version: | 3 | | Filesize: | 448.00 Kb | | Added on: | 02-Sep-2004 | | Downloads: | 622 | | Rating: | 7.0 (1 Vote) | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | |
| TeleCalc | | Description: | Designed to show you all the calculations of your telescope (magnification, f/ratio, aperture gain, exit pupil, Dawes limit...).
Note: .NET Framework installation required. | | | Version: | 1 | | Filesize: | 168.00 Kb | | Added on: | 19-Aug-2005 | | Downloads: | 688 | | Rating: | 10.0 (1 Vote) | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | Comments (1) | |
| SPOT | | Description: | SPOT is used to evaluate optical instruments or to conceive new ones. Once the system is drawn, it plots the layout of the rays by using the laws of geometrical optics and presents the aspect of the image obtained (on the axis or out of the axis etc...), showing the various aberrations like astigmatism. The image can be seen with several zoom levels. It is superimposed on a screen representing the rate of diffraction for a diameter chosen by you, a circle of 25 µm, or various pixel sizes of commercial CCD cameras. One can also do a Foucault test and get a diagram of the conceived system. Moreover, one can see a graph of the light wave and a graph of the longitudinal aberration.
The optical system can contain up to 20 surfaces including plane surfaces, spherical, parabolic, elliptic, hyperbolic, Schmidt, as well as obstructions and diaphragms. One can conceive all types of instruments used by amateurs: Newton, Cassegrain, Schmidt, Maksutov, using all types of glasses and even instruments with components tilted and shifted like Schiefspiegler. One can define up to 9 types of different glasses for the systems where there is refraction.
The beam can be monochromic or composed of three colors. One can choose the colors (wavelengths) contained in the beam. The image obtained contains the colors of the beam and can show the chromatic aberrations. These chromatic aberrations are also shown in the graph of the longitudinal aberrations. Once the system buit, the software calculates the effective focal distance, geometrical and photographic F/D ratios, as well as the percentage of vignetting.
12 sample designs are supplied with program along with an Help system. | | | Version: | 2.1 | | Filesize: | 390.62 Kb | | Added on: | 29-Dec-2003 | | Downloads: | 351 | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | |
| Scope Calculator (Windows) | | Description: | Scope Calculator helps you calculate and compare the magnification, field of view, and exit pupil of up to seven eyepieces when used with a given telescope. | | | Version: | 2.1 | | Filesize: | 878.91 Kb | | Added on: | 22-Oct-2004 | | Downloads: | 485 | | Rating: | 8.0 (1 Vote) | | Category: | Windows / Telescopes - Guiding, ATM & Optics | | Homepage | Rate resource | Details | |
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