CBET 4791 on (2500) Alascattalo

V. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov Observatory; F. Pilcher, Organ Mesa Observatory, Las Cruces, NM, U.S.A.; A. Marchini, R. Papini, and F. Salvaggio, Dipartimento di Scienze Fisiche, Della Terra e Dell’Ambiente, University of Siena; J. Oey, Blue Mountains Observatory, Leura, NSW, Australia; D. Pray, Sugarloaf Mountain Observatory, South Deerfield, MA, U.S.A.; R. Durkee, […]

HAT-P-12b

HAT-P-12b – 20200406

Here is the transit of HAT-P-12b exoplanet taken at WBRO-K49.Exposition 300 sec, V filter, full calibration. A good observation despite the almost full moon at only 45° from field. Here is the the lightcuve reduced. Here is the model derived from the observation Here the link to ETD page: http://var2.astro.cz/tresca/transit-detail.php?id=1586252026&lang=en

GPX-TF10A-2922

GPX-TF10A-2922

Another discovery in TF10A field. Another beautiful and interesting EA/RS CVn star. This is the GPX-TF10A-2922 (UCAC4 777-046627 in Cepheus) discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini. Total magnitude variation goes from 13.52 to 13.72 V. Eclipse amplitude 0.1 V. RS elements […]

GPX-TF10A-1832

GPX-TF10A-1832

This is the first discovery in our 2020. The system is the GPX-TF10A-1832 (GSC 04272-00081 in Cepheus) discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini. Magnitude variations goes from 12.60 to 12.63 V. Epoch: HJD 2457005.913 Period: 4.5600 d This is the link […]

GPX-TF10A-2400

GPX-TF10A-2400

Another EA system, the GPX-TF10A-2400 (GSC 04271-01788 in Cepheus) has been discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini. Magnitude variations goes from 13.49 to 13.78 with no secondary minima clearly revealed. Epoch: HJD 2457805.869 Period: 2.15220 d This is the link to […]

GPX-TF10D-1043

GPX-TF10D-1043

Another EA system with a BY Draconis component, the GPX-TF10D-1043 (GSC 04467-00814 in Cepheus), has been discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini.  Magnitude variations goes from 12.66 to 12.94. Long terms variations (with a non-calculable period, surely thousands days) has been […]

GPX-TF8A-2964

GPX-TF8A-2964

Another DSCT , the GPX-TF8A-2964 (GSC 03691-01411 in Perseus) has been discovered during the GPX survey and submitted to VSX by P. Benni, A. Burdanov, F. Salvaggio, A. Marchini, R. Papini.  Magnitude variation goes from 13.28 to 13.30 V. Spectral type is A. Epoch: HJD 2457693.7752 Period: 0.122717 d This is the link to VSX […]

CBET 4689 on (2019) VanAlbada

(2019) VAN ALBADA V. Benishek, Belgrade Astronomical Observatory; P. Pravec, Ondrejov Observatory; R. Durkee, Shed of Science South Observatory, Pontotoc, TX, U.S.A.; M. Husarik, M. Pikler, G, Cervak, and D. Tomko, Skalnate Pleso Observatory; B. Christmann, Soucieu-en-Jarrest, France; A. Aznar, Isaac Aznar Observatory, Alcublas, Valencia, Spain; D. Pray, Sugarloaf Mountain Observatory, South Deerfield, MA, U.S.A.; […]

UniSi_V118

UniSi_V118: new EA system

A new EA system, UniSi_V118 (UCAC4 458-084501 in Aquila) has been discovered from telescope of University of Siena by Fabio Salvaggio, Riccardo Papini, Alessandro Marchini and Massimo Banfi. Magnitude variation from 16.14 to 16.76. No secondary minima has been detected. Epoch: HJD 2458280.4701Period: 2.60546 d This is the link to VSX record: https://www.aavso.org/vsx/index.php?view=detail.top&oid=844783

UniSi_V117

UniSi_V117: new EA system

A new EA system, UniSi_V117 (UCAC4 762-005092 in Cassiopeia) has been discovered from telescope of University of Siena with the help of members of the SSV-UAI: Fabio Salvaggio, Alessandro Marchini, Riccardo papini, Massimo banfi, Lorenzo barbieri, Claudio Arena, Nello Ruocco and Giorgio Bianciardi. It was difficult to calculate the correct period. ASAS-SN needed to be […]