All Stories

  1. A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations
  2. TOI-5005 b: A super-Neptune in the savanna near the ridge
  3. Separating the causes of O–C variations in an RR Lyrae star with the Blazhko effect
  4. GRANDMA Observations of SN 2023wrk, a Luminous Type Ia Supernova with Significant Unburned Carbon in the Outer Ejecta
  5. Developing MATLAB graphical user interface for acquiring single star SCIDAR data
  6. TESS discovery of two super-Earths orbiting the M-dwarf stars TOI-6002 and TOI-5713 near the radius valley
  7. Aperture photometry on asteroid trails
  8. New aperture photometry technique for fast moving fly-by NEOs: detection of the 2.58s rotation period of 2024 BX1.
  9. Pre-perihelion TRAPPIST monitoring of the outbursting Halley-type comet 12P/Pons-Brooks
  10. Update on the FRIPON network and the effectiveness of meteorite recovery in Europe including all fireball networks. The example of the Saint Pierre-le-Viger fall highlights the need for Pro-Am collaboration
  11. Long-term TRAPPIST monitoring of a few Long Period and Dynamically New Comets.
  12. TOI-4336 A b: A temperate sub-Neptune ripe for atmospheric characterization in a nearby triple M-dwarf system
  13. Analysis of the Impact of the Blazhko Effect Both on the Van Hoof Effect and Radial Velocity Amplitude in the Star RR Lyr
  14. Deep Optical Emission-line Images of Nine Known and Three New Galactic Supernova Remnants
  15. 2023 DZ2 Planetary Defense Campaign
  16. The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs
  17. Detection of an Earth-sized exoplanet orbiting the nearby ultracool dwarf star SPECULOOS-3
  18. An extended low-density atmosphere around the Jupiter-sized planet WASP-193 b
  19. Identification of the Top TESS Objects of Interest for Atmospheric Characterization of Transiting Exoplanets with JWST
  20. Single star SCIDAR: Atmospheric parameters profiling using the power spectrum of scintillation
  21. TOI-2266 b: A keystone super-Earth at the edge of the M dwarf radius valley
  22. Photometry of the Didymos System across the DART Impact Apparition
  23. Ready for O4 II: GRANDMA observations of Swift GRBs over eight weeks in spring 2022
  24. Surface Heterogeneity, Physical, and Shape Model of Near-Earth Asteroid (52768) 1998 OR2
  25. Author Correction: A dense ring of the trans-Neptunian object Quaoar outside its Roche limit
  26. VaTEST III: Validation of eight potential super-earths from TESS data
  27. A study of Io’s sodium jets with the TRAPPIST telescopes
  28. Close-to-fission dumbbell Jupiter-Trojan (17365) Thymbraeus
  29. Atmospheric dynamics and shock waves in RR Lyr
  30. Interferometric apodization by homothety – II. Experimental validation
  31. A hot mini-Neptune and a temperate, highly eccentric sub-Saturn around the bright K-dwarf TOI-2134
  32. The high optical brightness of the BlueWalker 3 satellite
  33. TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others
  34. Non‐Migrating Structures in the Northern Midlatitude Thermosphere During December Solstice Using ICON/MIGHTI and FPI Observations
  35. TESS discovery of a super-Earth orbiting the M-dwarf star TOI-1680
  36. TOI-2084 b and TOI-4184 b: Two new sub-Neptunes around M dwarf stars
  37. An M dwarf accompanied by a close-in giant orbiter with SPECULOOS
  38. Interferometric apodization by homothety - I. Optimization of the device parameters
  39. VaTEST. II. Statistical Validation of 11 TESS-detected Exoplanets Orbiting K-type Stars
  40. A temperate Earth-sized planet with tidal heating transiting an M6 star
  41. TOI-1442 b and TOI-2445 b: Two potentially rocky ultra-short period planets around M dwarfs
  42. GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann
  43. Surface pressure impact on nitrogen-dominated USP super-Earths atmospheres
  44. New tool in python for spectroscopic data analysis: Application to variable stars data from the Oukaimden and OHP observatories
  45. A super-Earth and a mini-Neptune near the 2:1 MMR straddling the radius valley around the nearby mid-M dwarf TOI-2096
  46. TOI-3235 b: A Transiting Giant Planet around an M4 Dwarf Star
  47. Another Shipment of Six Short-Period Giant Planets from TESS
  48. The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets*
  49. Optical observations of an ultrabright constellation satellite
  50. A dense ring of the trans-Neptunian object Quaoar outside its Roche limit
  51. Activity and composition of the hyperactive comet 46P/Wirtanen during its close approach in 2018
  52. The equilibrium shape of (65) Cybele: primordial or relic of a large impact?
  53. Single Star SCIDAR: Real-time Cn2 profiling
  54. Spectroscopic Study of the Atmospheric Dynamics and Pulsation of the RV Tauri Star R Scuti
  55. The Dust Sublimation Region of the Type 1 AGN NGC 4151 at a Hundred Microarcsecond Scale as Resolved by the CHARA Array Interferometer
  56. Monitoring the activity and composition of comet C/2017K2 (PanSTARRS) with TRAPPIST telescopes
  57. Interhemispheric Asymmetry of the Equatorial Ionization Anomaly (EIA) on the African Sector Over 3 Years (2014–2016): Effects of Thermospheric Meridional Winds
  58. Hierarchical Fringe Tracking, sky coverage and AGNs with the VLTI
  59. The GRANDMA network in preparation for the fourth gravitational-wave observing run
  60. Costs and benefits of automation for astronomical facilities
  61. Aerosol Distributions and Transport over Southern Morocco from Ground-Based and Satellite Observations (2004–2020)
  62. M-type (22) Kalliope: A tiny Mercury
  63. TESS discovery of a sub-Neptune orbiting a mid-M dwarf TOI-2136
  64. Aerosol Distributions and Sahara Dust Transport in Southern Morocco, from Ground-Based and Satellite Observations
  65. A Possible Alignment Between the Orbits of Planetary Systems and their Visual Binary Companions
  66. Constraints on the structure and seasonal variations of Triton’s atmosphere from the 5 October 2017 stellar occultation and previous observations
  67. HATS-74Ab, HATS-75b, HATS-76b, and HATS-77b: Four Transiting Giant Planets Around K and M Dwarfs*
  68. NEID Rossiter–McLaughlin Measurement of TOI-1268b: A Young Warm Saturn Aligned with Its Cool Host Star
  69. Validation of 13 Hot and Potentially Terrestrial TESS Planets
  70. TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf
  71. Longitudinal Variability of the Vertical Drift Velocity Inferred from Ground-Based Magnetometers and C/NOFS Observations in Africa
  72. VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis
  73. Properties of slowly rotating asteroids from the Convex Inversion Thermophysical Model
  74. The Magellan-TESS Survey. I. Survey Description and Midsurvey Results* †
  75. A large sub-Neptune transiting the thick-disk M4 V TOI-2406
  76. Ultrafast laser inscription of asymmetric integrated waveguide 3  dB couplers for astronomical K-band interferometry at the CHARA array
  77. TOI-1231 b: A Temperate, Neptune-sized Planet Transiting the Nearby M3 Dwarf NLTT 24399
  78. Contribution of small telescopes at the Oukaïmden observatory in Morocco to study atmospheric dynamics and shocks waves in variables stars RR Lyr and R Scuti
  79. TOI-1259Ab – a gas giant planet with 2.7 per cent deep transits and a bound white dwarf companion
  80. Warm Jupiters in TESS Full-frame Images: A Catalog and Observed Eccentricity Distribution for Year 1
  81. Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey
  82. Potential and sky coverage for off-axis fringe tracking in optical long baseline interferometry
  83. (6478) Gault: physical characterization of an active main-belt asteroid
  84. (208) Lacrimosa: A case that missed the Slivan state?
  85. Comparison of ionospheric anomalies over African equatorial/low-latitude region with IRI-2016 model predictions during the maximum phase of solar cycle 24
  86. Evidence for differentiation of the most primitive small bodies
  87. TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-like Star HD 108236
  88. Refining the Transit-timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides
  89. TESS Hunt for Young and Maturing Exoplanets (THYME). IV. Three Small Planets Orbiting a 120 Myr Old Star in the Pisces–Eridanus Stream
  90. Validation of ICON‐MIGHTI thermospheric wind observations: 1. Nighttime Red‐line Ground‐Based Fabry‐Perot Interferometers
  91. Detection and calculation of meteor trajectories by MOFID All Sky cameras network
  92. Using the OWL@OUKA telescope to follow-up the TESS planet candidates: first results
  93. Vetting of 384 TESS Objects of Interest with TRICERATOPS and Statistical Validation of 12 Planet Candidates
  94. TOI 122b and TOI 237b: Two Small Warm Planets Orbiting Inactive M Dwarfs Found by TESS
  95. FRIPON: a worldwide network to track incoming meteoroids
  96. Interferential seeing monitor, a seeing monitor for atmospheric turbulence studies: calibration with the differential image motion monitor
  97. The CARMENES search for exoplanets around M dwarfs. LP 714-47 b (TOI 442.01): populating the Neptune desert
  98. A Global Fireball Observatory
  99. A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266
  100. The CARMENES search for exoplanets around M dwarfs
  101. Binary asteroid (31) Euphrosyne: ice-rich and nearly spherical
  102. Photometry and high-resolution spectroscopy of comet 21P/Giacobini-Zinner during its 2018 apparition
  103. Quiet time ionopheric irregularities over the African Equatorial Ionization Anomaly (EIA) region
  104. Thermospheric Neutral Winds Above the Oukaimeden Observatory: Effects of Geomagnetic Activity
  105. Three short-period Jupiters from TESS
  106. Physical parameters of selected Gaia mass asteroids
  107. IGAPS: the merged IPHAS and UVEX optical surveys of the northern Galactic plane
  108. Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b
  109. Properties of Sub-Neptune Atmospheres: TOI-270 System
  110. HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs
  111. TESS Spots a Hot Jupiter with an Inner Transiting Neptune
  112. The Continuing Search for Evidence of Tidal Orbital Decay of Hot Jupiters
  113. Discovery of a pre-cataclysmic binary with unusual chromaticity of the eclipsed white dwarf by the GPX survey
  114. 2I/Borisov: A C2-depleted interstellar comet
  115. Comet 66P/du Toit: not a near-Earth main belt comet
  116. A basin-free spherical shape as an outcome of a giant impact on asteroid Hygiea
  117. Detection of CN Gas in Interstellar Object 2I/Borisov
  118. Near-resonance in a System of Sub-Neptunes from TESS
  119. WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b, and WASP-192b
  120. WASP-180Ab: Doppler tomography of a hot Jupiter orbiting the primary star in a visual binary
  121. TOI-150b and TOI-163b: two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ
  122. Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS
  123. WASP-169, WASP-171, WASP-175, and WASP-182: three hot Jupiters and one bloated sub-Saturn mass planet discovered by WASP-South
  124. Publisher Correction: A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270
  125. Updated extraction of the APOGEE 1.5273 μm diffuse interstellar band: a Planck view on the carrier depletion in dense cores
  126. Meteor Detection from the Fireball Moroccan Network: First Orbital Results and Links to Parent Bodies
  127. A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270
  128. SuperWASP dispositions and false positive catalogue
  129. The L 98-59 System: Three Transiting, Terrestrial-size Planets Orbiting a Nearby M Dwarf
  130. Qatar Exoplanet Survey: Qatar-8b, 9b, and 10b—A Hot Saturn and Two Hot Jupiters
  131. Lower atmosphere and pressure evolution on Pluto from ground-based stellar occultations, 1988–2016
  132. The EBLM Project
  133. NGTS-4b: A sub-Neptune transiting in the desert
  134. High resolution optical spectroscopy of the N2-rich comet C/2016 R2 (PanSTARRS)
  135. Dust properties of double-tailed active asteroid (6478) Gault
  136. Three Hot-Jupiters on the upper edge of the mass-radius distribution: WASP-177, WASP-181 and WASP-183
  137. WASP-190b: Tomographic Discovery of a Transiting Hot Jupiter
  138. Homogeneous internal structure of CM-like asteroid (41) Daphne
  139. A robust method to identify meteor showers new parent bodies from the SonotaCo and EDMOND meteoroid orbit databases
  140. Qatar Exoplanet Survey: Qatar-7b—A Very Hot Jupiter Orbiting a Metal-rich F-Star
  141. Discovery of Three New Transiting Hot Jupiters: WASP-161 b, WASP-163 b, and WASP-170 b
  142. The Arab Astronomical Society (ArAS): Developing Astrophysics Research in the Arab World
  143. Monitoring of the activity and composition of comets 41P/Tuttle–Giacobini–Kresak and 45P/Honda–Mrkos–Pajdusakova
  144. The 0.8–4.5 μm Broadband Transmission Spectra of TRAPPIST-1 Planets
  145. The impact crater at the origin of the Julia family detected with VLT/SPHERE?
  146. TSARDI: a Machine Learning data rejection algorithm for transiting exoplanet light curves
  147. Discovery of WASP-174b: Doppler tomography of a near-grazing transit
  148. Metallic Line Doubling in the Spectra of the Variable Star R Scuti
  149. Modeling the Transmission Spectra of WASP-31b
  150. FM14 Session 3: The IAU National Outreach Coordinators (NOCs) Network – Coordinating and Catalyzing Astronomy Outreach Worldwide
  151. Ionospheric and thermospheric response to the 27–28 February 2014 geomagnetic storm over north Africa
  152. SPECULOOS: a network of robotic telescopes to hunt for terrestrial planets around the nearest ultracool dwarfs
  153. Reactive collision of electrons with CO+ in cometary coma
  154. Dust modelling and a dynamical study of comet 41P/Tuttle–Giacobini–Kresak during its 2017 perihelion passage
  155. Development in astronomy and space science in Africa
  156. Theoretical study of ArH+ dissociative recombination and electron-impact vibrational excitation
  157. Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system
  158. Peering into space with the Morocco Oukaïmeden Observatory
  159. The First Post-Kepler Brightness Dips of KIC 8462852
  160. Stellar Parameters for Trappist-1
  161. Qatar Exoplanet Survey: Qatar-6b—A Grazing Transiting Hot Jupiter
  162. 280 one-opposition near-Earth asteroids recovered by the EURONEAR with the Isaac Newton Telescope
  163. Asymptotic g modes: Evidence for a rapid rotation of the solar core
  164. The Space Weather through a Multidisciplinary Scientific Approach
  165. Thermospheric Dynamics in Quiet and Disturbed Conditions
  166. Variability of the Vertical Total Electron Content, from GPS data, during 2 to 8 November 2015, Using Oukaimeden and Rabat Stations in Morocco
  167. Study of the Plutino Object (208996) 2003 AZ84 from Stellar Occultations: Size, Shape, and Topographic Features
  168. Assessment of the potential of the new Belgo-Moroccan telescope TRAPPIST-North for high-precision exoplanet transit photometry
  169. Metallic line doubling in the spectra of the variable RR Lyrae star
  170. Monitoring of comets activity and composition with the TRAPPIST-North telescope
  171. A seven-planet resonant chain in TRAPPIST-1
  172. Qatar Exoplanet Survey : Qatar-3b, Qatar-4b, and Qatar-5b
  173. Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
  174. Climatology of thermospheric neutral winds over Oukaïmeden Observatory in Morocco
  175. Tribological Behavior of PVD Hard Coated Cutting Tools under Cryogenic Cooling Conditions
  176. The DOHA algorithm: a new recipe for cotrending large-scale transiting exoplanet survey light curves
  177. 197 CANDIDATES AND 104 VALIDATED PLANETS IN K2 's FIRST FIVE FIELDS
  178. Co-phasing the planet formation imager
  179. H∞ controller design for high sensitivity fringe tracking
  180. Hierarchical fringe tracker to co-phase and coherence very large optical interferometers
  181. CONSTRAINING THE ANGULAR MOMENTUM EVOLUTION OF V455 ANDROMEDAE
  182. First statistics of the isopistonic angle for long baseline interferometry
  183. Spectroscopy from Oukaimeden Observatory, first work
  184. Spectroscopy,MOSTphotometry, and interferometry of MWC 314: is it an LBV or an interacting binary?
  185. From Asteroids to Space Debris
  186. Climatologies of nighttime thermospheric winds and temperatures from Fabry‐Perot interferometer measurements: From solar minimum to solar maximum
  187. First Lunar Flashes Observed from Morocco (ILIAD Network): Implications for Lunar Seismology
  188. Multiwavelength study of Cygnus A
  189. An analytical model for the 0. 33 - 7. 85 micron transmission spectrum of HD189733b : Effect of stellar spots
  190. Discovery of ZZ Cetis in detached white dwarf plus main-sequence binaries
  191. SOPHIE velocimetry ofKeplertransit candidates
  192. The expanding fireball of Nova Delphini 2013
  193. Improving the surface brightness-color relation for early-type stars using optical interferometry
  194. The second data release of the INT Photometric Hα Survey of the Northern Galactic Plane (IPHAS DR2)
  195. European Extremely Large Telescope: Isopistonic Angle Measurements at Aklim Site
  196. The OTP-model applied to the Aklim site database
  197. Instrumental methods for professional and amateur collaborations in planetary astronomy
  198. MWC 314: binary results from optical interferometry compared with spectroscopy and photometry
  199. Fringe tracking in optical interferometry: a robust control framework for higher sensitivity limits
  200. Hierarchical fringe tracking
  201. Astroclimate at Jbel Aklim site in Moroccan anti-atlas: 2008-2010 seeing and isoplanatic angle statistics from the E-ELT site testing data
  202. E-ELT seeing and isoplanatic angle: comparison of Aklim site and El Roque de Los Muchachos Observatory
  203. European Extremely Large Telescope Site Characterization III: Ground Meteorology
  204. Multiwavelength study of Cygnus A
  205. Stellar diameters and temperatures – V. 11 newly characterized exoplanet host stars
  206. HUBBLE SPACE TELESCOPEAND GROUND-BASED OBSERVATIONS OF V455 ANDROMEDAE POST-OUTBURST
  207. Numerical simulations of a new approach for seeing measurement
  208. Eclipsing post-common envelope binaries from the Catalina surveys
  209. IPHAS J062746.41+014811.3: A DEEPLY ECLIPSING INTERMEDIATE POLAR
  210. The unseen population of F- to K-type companions to hot subdwarf stars
  211. A project of a two meter telescope in North Africa
  212. European Extremely Large Telescope Site Characterization. II. High Angular Resolution Parameters
  213. Solar initiative at Oukaimeden Observatory
  214. Post-common envelope binaries from SDSS - XVI. Long orbital period systems and the energy budget of common envelope evolution
  215. Mass ratio from Doppler beaming and Rømer delay versus ellipsoidal modulation in the Kepler data of KOI-74★
  216. Power and duration of impact flashes on the Moon: Implication for the cause of radiation
  217. HS 2325 + 8205 —An Ideal Laboratory for Accretion Disk Physics
  218. A precision study of two eclipsing white dwarf plus M dwarf binaries
  219. Meteorological profiles and optical turbulence in the free atmosphere with NCEP/NCAR data at Oukaïmeden - I. Meteorological parameters analysis and tropospheric wind regimes
  220. Post common envelope binaries from SDSS
  221. Post common envelope binaries from SDSS
  222. Post-common envelope binaries from SDSS - XV. Accurate stellar parameters for a cool 0.4 M⊙ white dwarf and a 0.16 M⊙ M dwarf in a 3 h eclipsing binary
  223. European Extremely Large Telescope Site Characterization I: Overview
  224. The shortest period detached white dwarf + main-sequence binary
  225. First characterization of Jbel Aklim in Moroccan Anti-Atlas as a potential site for the E-ELT
  226. Study of AERONET data of nearby stations in the Canary Islands: application to infer astronomical extinction coefficient at elevated altitudes
  227. Cross-calibration of DIMM monitors at Oukaimden observatory and Marrakesh site
  228. Homothetic apodization of circular aperture HACA: simulation results
  229. Oukaimeden Observatory: detection of exoplanet HD 189733b by the transit method
  230. E-ELT: Isopistonic and isoplanatic angles at Aklim candidate site
  231. First characterization of Jbel Aklim in Moroccan Anti-Atlas as a potential site for the E-ELT
  232. Meteorological parameters analysis above Oukaimeden Observatory using NCEP/NCAR data
  233. The orbital period of V458 Vulpeculae, a post-double common-envelope nova
  234. Circular aperture interferometric apodization using homothety - I. Simulation results
  235. Post common envelope binaries from SDSS
  236. Orbital periods of cataclysmic variables identified by the SDSS
  237. Hunting for eclipsing Post Common Envelope Binaries from SDSS
  238. The UV-Excess survey of the northern Galactic plane
  239. High-altitude wind velocity at Oukaimeden observatory
  240. Three eclipsing white dwarf plus main sequence binaries from SDSS
  241. White dwarf post common envelope binaries from the SDSS
  242. Post-common-envelope binaries from SDSS - V. Four eclipsing white dwarf main-sequence binaries
  243. Post common envelope binaries from SDSS
  244. Initial data release from the INT Photometric H Survey of the Northern Galactic Plane (IPHAS)
  245. Interferential seeing monitor
  246. Influence of instrumental noise and defocus on the DIMM
  247. Meteorological study of Aklim site in Morocco
  248. Neural networks based control of chaotic Phase-Locked Loop
  249. Interferential seeing monitor
  250. Aerosol columnar characterization in Morocco: ELT prospect
  251. Isopistonic angle for multi-aperture interferometers from isoplanatic angle
  252. Aerosol characterization of Morocco with AERONET and intercomparison with satellite data: TOMS, MODIS and MISR
  253. Effect of altitude on aerosol optical properties
  254. Astronomical extinction over the ELT Moroccan sites from aerosol satellite data
  255. Deep sky observations with Dome C optical interferometers
  256. ELT site prospect in Morocco: aerosol characterization
  257. Single star scidar: atmospheric parameters profiling using the simulated annealing algorithm
  258. RXJ0636 — A new intermediate polar
  259. Limiting magnitude for Dome C optical interferometers
  260. Optical seeing monitoring at the Oukaïmeden in the Moroccan high atlas mountains: first statistics
  261. Cataclysmic variables from a ROSAT/2MASS selection — I. Four new intermediate polars
  262. Application de la technique du SCIDAR généralisé aux étoiles simples
  263. Correlation between TOMS aerosol index and astronomical extinction
  264. OWL site survey: first seeing measurement with ADIMM
  265. Optical turbulence outer scale and coherence outer scale at different astronomical sites
  266. Seeing, outer scale of optical turbulence, and coherence outer scale at different astronomical sites using instruments on meteorological balloons
  267. Study of the clear time behavior on Oukaı̈meden observatory using the IRIS database
  268. Optical turbulence modeling in the boundary layer and free atmosphere using instrumented meteorological balloons
  269. The first optical characterization of the Oukaïmeden site with the Generalized Seeing Monitor (GSM)
  270. A meteorological and photometric study of the Oukaimeden site
  271. Broad band filter colours and optical depth of the G and L impact sites of comet shoemaker-levy 9
  272. Air drag effect on the motion of an artificial Earth satellite
  273. Attempt to assess astronomical ?seeing? using a model
  274. Network of Oriental Robotic Telescopes
  275. Sunspot observations at KAAU solar observatory
  276. The global oscillation network group site survey
  277. The solar activity maximum of cycle no. 22 from KAAU solar observatory
  278. A simple flux integration photometer for day time site testing at Oukaimeden
  279. Moroccan participation in the study of solar oscillations
  280. Density diagnostics and inhomogeneous non-isothermal plasmas