And again, we did it! This is the UCAC4 662-020393 in Perseus. It’s a really faint EW discovered from the team composed by me, Riccardo Papini, Massimo Banfi, Alessandro Marchini and Claudio Arena. The period was defined better using the ASAS-SN survey data. Magnitude goes from 15.59 to 15.85 V. Epoch: 2458097.3661 HJD Period: 0.374850 d Link […]
Poker! Another variable star has been discovered by the team composed by me, Massimo Banfi and Riccardo Papini (WBRO – K49) and Alessandro Marchini (Astronomical Observatory of University of Siena). This is the UCAC4 552-028220 located in Gemini, a very nice EA semi-detached system that seems almost an EB system. We covered almost all phase […]
Another EW system has been discovered thanks to a strong collaboration with Alessandro Marchini, Riccardo Papini, Massimo Banfi, Claudio Arena and Giorgio Bianciardi. This system, located in Perseus, is a very nice EW system with a clear O’Connel effect. It was not possible to cover all the phase, but the period is well fixed. We […]
And, again, we are back. This is a nice EW system located in Cassiopeia. The discovery is from the last mid august thanks to the telescope of Osservatorio Astronomico of University of Siena by Alessandro Marchini. Me, Riccardo Papini and Massimo Banfi observed the system again with the WBRO (K49) during other two nights, few […]
After five months, we back to discover variable stars. And this is the first (real, not imported) post in my new website. The new variable star is the UCAC4 590-041015 in Gemini. We – with Alessandro Marchini and Riccardo Papini – discovered this system on 16 january 2016. But it was really difficult to complete the […]
A new EW system in Ophiuchus has been discovered. We saw it, at first time, in may. But we finisched the work just last week. The discovery is made with my Brothers-in-star Alessandro Marchini e Riccardo Papini and the collaboration with friends Mauro Bachini and Giacomo Succi. We also used CRTS data to improve period […]
A new DSCT star in Acquarius, the UCAC4 409-132318. A pulsading star extremely fast, was discovered using the telescope of the Astronomical Observatory of the Università di Siena and the strong collaboration with Alessandro Marchini and Riccardo Papini. Magnitude variation from 15.09 to 15.20 CV. Epoch: 2457951.4911 HJD Period: 0.0584147 d Link to VSX: https://www.aavso.org/vsx/index.php?view=detail.top&oid=545353 MK-C 12″ […]
(23621) 1996 PA D. Pray, Sugarloaf Mountain Observatory, South Deerfield, MA, U.S.A.; J. Oey, Blue Mountains Observatory, Leura, NSW, Australia; P. Pravec, H. Kucakova, and K. Hornoch, Ondrejov Observatory; V. Benishek, Belgrade Astronomical Observatory; and A. Marchini, R. Papini, and F. Salvaggio, Dipartimento di Scienze Fisiche, Della Terra e Dell’Ambiente, University of Siena, report that […]
A new EW system in Lyra has been discovered, the UCAC4 641-065317. Thanks to the telescope of Astronomical Observatory of Università di Siena and the collaboration of Alessandro Marchini, Riccardo Papini and Davide Agnetti. Over one month was needed to find the correct lightcurve due a period almost equal to 12 hours. Magnitude variation from […]
E si torna nella Lyra, per la scoperta del sistema EW UCAC4 641-065317, effettuata sempre grazie all’ausilio del telescopio dell’Osservatorio Astronomico dell’Università di Siena e la collaborazione di Alessandro Marchini, Riccardo Papini e Davide Agnetti. La scoperta ha richiesto oltre un mese per il periodo, praticamente prossimo alle 12 ore, che ci ha obbligato ad attendere […]
