HUBBLE SPACE TELESCOPE VIA THE WEB

1994 ◽  
Vol 05 (05) ◽  
pp. 811-816
Author(s):  
CHRISTOPHER P. O’DEA
Keyword(s):  
Hubble Space Telescope ◽  
Information Service ◽  
Educational Material ◽  
Current Status ◽  
Scientific Instruments ◽  
Electronic Information ◽  
Space Telescope ◽  
Future Developments ◽  
Tiff Format ◽  
Space Telescope Science Institute

The Space Telescope Science Institute (STScI) makes available a wide variety of information concerning the Hubble Space Telescope (HST) via the Space Telescope Electronic Information Service (STEIS). STEIS is accessible via anonymous ftp, gopher, WAIS, and WWW. The information on STEIS includes how to propose for time on the HST, the current status of HST, reports on the scientific instruments, the observing schedule, data reduction software, calibration files, and a set of publicly available images in JPEG, GIF and TIFF format. STEIS serves both the astronomical community as well as the larger Internet community. WWW is currently the most widely used interface to STEIS. Future developments on STEIS are expected to include larger amounts of hypertext, especially HST images and educational material of interest to students, educators, and the general public, and the ability to query proposal status.

scholarly journals Synthetic Photometry and the Calibration of the Hubble Space Telescope

1986 ◽  
Vol 7 ◽  
pp. 833-843 ◽  
Author(s):  
J. Koornneef ◽  
R. Bohlin ◽  
R. Buser ◽  
K. Horne ◽  
D. Turnshek
Keyword(s):  
Full Advantage ◽  
Dynamic Range ◽  
Hubble Space Telescope ◽  
Scientific Instruments ◽  
Space Telescope ◽  
Sensitivity Functions

AbstractThe combined Scientific Instruments (SIs) on the Hubble Space Telescope (HST) feature an extensive wavelength coverage in both photometric and spectrophotometric modes with an overall dynamic range of more than twenty-five magnitudes. We demonstrate how synthetic photometry techniques are to be used to establish and maintain their calibration. This approach makes efficient use of limited HST observing time by taking full advantage of pre-launch knowledge on the SI sensitivity functions and calibration targets.

scholarly journals Current Status of the Astrometric Capabilities of the Hubble Space Telescope Fine Guidance Sensors

1991 ◽  
Vol 127 ◽  
pp. 68-76
Author(s):  
W.H. Jefferys ◽  
G.F. Benedict ◽  
R.L. Duncombe ◽  
O.G. Franz ◽  
L.W. Fredrick ◽  
...  
Keyword(s):  
Optical System ◽  
Reference Frames ◽  
Optical Axis ◽  
Hubble Space Telescope ◽  
Current Knowledge ◽  
Spherical Aberration ◽  
Radial Distance ◽  
Current Status ◽  
Space Telescope ◽  
Wavefront Error

AbstractThe Fine Guidance Sensors (FGSs) are the instrument of choice for most astrometric measurements with the Hubble Space Telescope (HST). The observed amount of spherical aberration in the Ritchey Chretien optical system does not affect positional measurements with perfectly aligned FGSs because they are interferometers. The FGSs combine wavefronts from points in the exit pupil with other points which are at the same radial distance from the optical axis. Asymmetric aberrations such as coma and astigmatism do affect the measured positions. The current knowledge of the HST wavefront error, the FGS operation and the implications for milliarcsecond relative astrometry are discussed. It is still planned to use the HST to tie the HIPPARCOS and VLBI Reference Frames together at the few milliarcsecond level.

scholarly journals Simulations of HST Observations of Globular Clusters

1988 ◽  
Vol 126 ◽  
pp. 455-464
Author(s):  
John N. Bahcall ◽  
Donald P. Schneider
Keyword(s):  
Globular Clusters ◽  
Angular Resolution ◽  
Hubble Space Telescope ◽  
High Angular Resolution ◽  
Space Telescope ◽  
Science Institute ◽  
Galactic Globular Clusters ◽  
Space Telescope Science Institute

The high angular resolution of the Hubble Space Telescope will provide opportunities for many fundamental observations of globular clusters, most of which have been extensively discussed in the literature. We have therefore chosen to devote our time (and pages) to a presentation of what HST observations may reveal about some aspects of galactic globular clusters. To avoid infringing upon programs that others may propose, we have limited ourselves to simulations of observations that are part of our Guaranteed Time Observations. [The complete catalog of GTO observations has published by the Space Telescope Science Institute and is available upon request.]

scholarly journals Hipparcos – The Tycho Input Catalogue

1986 ◽  
Vol 7 ◽  
pp. 713-717 ◽  
Author(s):  
J.L. Russell ◽  
D. Egret
Keyword(s):  
Additional Data ◽  
Hubble Space Telescope ◽  
A Priori ◽  
General Assembly ◽  
Space Telescope ◽  
Data Centre ◽  
Star Catalogue ◽  
Guide Star ◽  
Input Catalogue ◽  
Space Telescope Science Institute

AbstractThe Tycho Input Catalogue will be used as a finding list to identify the stellar data within the stream of raw data received from the Hipparcos star mappers. It is based on an a priori list of stars, namely the Guide Star Catalogue being created for the Hubble Space Telescope at the Space Telescope Science Institute. The Guide Star Catalogue will contain positions and magnitudes for objects in the sky complete to at least 14 mag, and will contain about 20 million stars. The data for the sky complete to approximately 12.5 mag, extracted from the Guide Star Catalogue, along with some additional data from the SIMBAD data base of about 500 000 stars at the Strasbourg Stellar Data Centre, will form the Tycho Input Catalogue of approximately 2 million objects. As of the 1985 IAU General Assembly nearly 50 per cent of the plates for the Guide Star Catalogue had been measured, and 10 per cent of them were completely processed and catalogued.

scholarly journals Amateur Astronomers and the Hubble Space Telescope

1988 ◽  
Vol 98 ◽  
pp. 100-101
Author(s):  
Stephen J. Edberg
Keyword(s):  
Variable Star ◽  
American Association ◽  
Hubble Space Telescope ◽  
High Energy ◽  
Photoelectric Photometry ◽  
Space Telescope ◽  
Discretionary Time ◽  
Good Research ◽  
Space Telescope Science Institute ◽  
Selection Of

In December 1985 the leaders of major amateur astronomy organizations in the U.S. met with the director and staff of the Space Telescope Science Institute (STScI) at their invitation to discuss the possibility of organizing a program for U.S. citizens who don’t work professionally in astronomy to make use of the Hubble Space Telescope. Director Riccardo Giaconni’s previous successful experience in cooperating with the American Association of Variable Star Observers (AAVSO) on studies of various objects with the orbiting High Energy Astronomy Observatory prompted him to bring together representative of the AAVSO, Association of Lunar and Planetary Observers (ALPO), Astronomical League (AL), International Amateur-Professional Photoelectric Photometry (IAPPP), Independent Space Research Group (ISRG), International Occultation Timing Association (IOTA), and Western Amateur Astronomers (WAA) to work out an approach to making HST observing time available to amateur astronomers, educators, and anyone else who might have a good research idea. Dr Giaconni offered to make some of his director’s discretionary time available to qualified non-professional astronomers if the representatives present would design and carry out a program to find the good research ideas and have them ready for his selection. They would then be inserted in the HST observing program once the first six months of Guaranteed Time Observations had been carried out and the regular General Observing program had begun. With this as its charge, the representatives organized themselves into the Amateur Astronomers Working Group and have prepared a procedure for the selection of non-professional researchers to use the Hubble Space Telescope.

scholarly journals Prospects for space Telescope in the search for other Planetary Systems

1985 ◽  
Vol 112 ◽  
pp. 75-84
Author(s):  
J. L. Russell
Keyword(s):  
High Speed ◽  
Hubble Space Telescope ◽  
Planetary Systems ◽  
Wide Field ◽  
Minor Planets ◽  
Scientific Instruments ◽  
The Moon ◽  
Space Telescope ◽  
Faint Object

The Hubble Space Telescope (ST) will be launched with five dedicated scientific instruments and a capability to do astrometric measurements with the fine guidance sensors. Four of these – the Faint Object Camera, the Wide Field Camera, the Fine Guidance Sensors and the High Speed Photometer – can be used in the search for extrasolar planetary systems. The Faint Object Camera will be able to directly detect planets around a few of the nearby bright stars. The Wide Field Camera and the Fine Guidance Sensors can be used astrometrically, both with an accuracy of about 2 mas per observation. The High Speed Photometer possibly can detect planets during occultation of stars by the moon and minor planets. The ST is expected to be launched in mid-1986 and these observations are the among the first planned with the instruments.

Sign in / Sign up

Export Citation Format

Share Document