Results 21 to 30 of about 179,881 (276)

Search and study of the space debris and asteroids within ISON project [PDF]

Anais da Academia Brasileira de Ciências, 2021
International Scientific Optical Network (ISON) is an open international voluntary project specializing in observations of the near-Earth space objects.
IGOR E. MOLOTOV, YURIJ N. KRUGLY, LEONID V. ELENIN, THOMAS SCHILDKNECHT, VASILIJ V. RUMYANTSEV, RAGULI YA. INASARIDZE, VOVA R. AIVAZYAN, GIVI V. KAPANADZE, LLUIS R. CANALS, FILIPPO GRAZIANI, PAOLO TEOFILATTO, SHUHRAT A. EHGAMBERDIEV, OTABEK A. BURKHONOV, EKATERINA D. CHORNAYA, ANTON V. KOCHERGIN, YEHIA A. ABDEL-AZIZ, AHMED M. ABDELAZIZ, VLADIMIR V. KOUPRIANOV, MIKHAIL V. ZAKHVATKIN, VICTOR A. STEPANYANTS, INNA V. REVA, ALEXANDER V. SEREBRYANSKIY, SERGEI E. SCHMALZ, IGOR V. NIKOLENKO   +23 more
doaj   +1 more source

Asteroid Photometry [PDF]

, 2015
Asteroid photometry has three major applications: providing clues about asteroid surface physical properties and compositions, facilitating photometric corrections, and helping design and plan ground-based and spacecraft observations. The most significant advances in asteroid photometry in the past decade were driven by spacecraft observations that ...
Li, Jian Yang, Helfenstein, Paul, Buratti, Bonnie J., Takir, Driss, Clark, Beth Ellen   +4 more
openaire   +2 more sources

The Apparent Tidal Decay of WASP-4 b Can Be Explained by the Rømer Effect

Universe, 2023
Tidal orbital decay plays a vital role in the evolution of hot Jupiter systems. As of now, this has only been observationally confirmed for the WASP-12 system.
Jan-Vincent Harre, Alexis M. S. Smith
doaj   +1 more source

Variable Stars in the Globular Cluster M5. Application of the Image Subtraction Method [PDF]

, 1999
We present $V$-band light curves of 61 variables from the core of the globular cluster M5 obtained using a newly developed image subtraction method (ISM). Four of these variables were previously unknown.
A. Olech, Alard C., Alard C., Alard C., Alcock C., C. Alard, Caputo F., Drissen L., I. B. Thompson, J. Kaluzny, Kaluzny J., Kaluzny J., Olech A., P. R. Wozniak, Reid I. N., Sandquist E., Sawyer Hogg H., Schechter P., Wozniak P. R.   +18 more
core   +3 more sources

SAINT (Small Aperture Imaging Network Telescope)—A Wide-Field Telescope Complex for Detecting and Studying Optical Transients at Times from Milliseconds to Years

Photonics, 2023
In this paper, we present a project of a multi-channel wide-field optical sky monitoring system with high temporal resolution—Small Aperture Imaging Network Telescope (SAINT)— mostly built from off-the-shelf components and aimed towards searching and ...
Grigory Beskin, Anton Biryukov, Alexey Gutaev, Sergey Karpov, Gor Oganesyan, Gennady Valyavin, Azamat Valeev, Valery Vlasyuk, Nadezhda Lyapsina, Vyacheslav Sasyuk   +9 more
doaj   +1 more source

Overview of Gaia Multi-Color Photometry

Open Astronomy, 2003
Gaia will obtain multi-color photometry for astrometric and astrophysical purposes. A photometry in five broad bands and with high angular resolution will be obtained after every astrometric observation of a star, especially for the sake of correcting ...
Høg Erik
doaj   +1 more source

Identifying the Photometric Characteristics and Applicability of Hybrid Solar Lighting

Energies, 2022
The present research aims at promoting the stability and applicability of a hybrid daylighting system combining daylight and artificial light, which eventually enables a constant and pleasant luminous flux of the mixed light delivered by a terminal ...
Hyun-Joo Han, Muhammad Uzair Mehmood, Jin-Chul Park, Joo-Won Lee, Sang-Hoon Lim, Seung-Jin Oh   +5 more
doaj   +1 more source

Identification of the Mixing Ratios of Beer-Mixed Beverages by UV/VIS Spectroscopy

Beverages, 2023
UV/VIS spectroscopy was used in conjunction with a calibration method to determine the mixing ratio of samples of beer-mixed drinks with mineral water (sour Radler beers) from the food service industry.
Sophia Stinus, Pauline Erban, Josef Diebold, Magnus S. Schmidt   +3 more
doaj   +1 more source

Photometry as a proxy for stellar activity in radial velocity analyses

, 2020
Stellar activity remains a limiting factor in measuring precise planet parameters from radial velocity spectroscopy, not least in the search for Earth mass planets orbiting in the habitable zones of Sun-like stars.
Crossfield, Ian J. M., Kosiarek, Molly R.   +1 more
core   +1 more source

Combining Aperture and PSF-Fitting Photometry

Open Astronomy, 2003
The multiple object and multiple frame (MOMF) CCD photometry package, that combines the advantages of aperture and PSF photometry is described. Results from comparisons with other programs are given; no other photometry package was found to give better ...
Handler G.
doaj   +1 more source