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Precision limits of the twin-beam multiband ursula
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fedel, B. Ventura, R. Paterno, L. Debiase, G. A. Santagati, G. |
| Copyright Year | 1988 |
| Description | URSULA is a multiband astronomical photoelectric photometer which minimizes errors introduced by the presence of the atmosphere. It operates with two identical channels, one for the star to be measured and the other for a reference star. After a technical description of the present version of the apparatus, some measurements of stellar sources of different brightness, and in different atmospheric conditions are presented. These measurements, based on observations made with the 91 cm Cassegrain telescope of the Catania Astrophysical Observatory, are used to check the photometer accuracy and compare its performance with that of standard photometers. |
| File Size | 481319 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890003941 |
| Archival Resource Key | ark:/13960/t6935qt51 |
| Language | English |
| Publisher Date | 1988-09-01 |
| Access Restriction | Open |
| Subject Keyword | Astronomy Errors Range Extremes Accuracy Electrophotometers Brightness Comparison Precision Stars Telescopes Assessments Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |