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Ukončené pozorovací kampaněTato stránka obsahuje seznam ukončených pozorovacích kampaní nebo požadavků na pozorování. Kampaně jsou označeny podle náležitosti k projektu. Search for HAT-P-13 c transitPLATNOST KAMPANĚ: 12. 3. 2010 - 30. 6. 2010ZADAL: Benjamin Nelson, 12. 3. 2010 ------- NEW 25th March 2010 --------- Refined prediction of HAT-P-13 possible transit. Joshua N. Winn et al. has published paper The HAT-P-13 Exoplanetary System: Evidence for Spin-Orbit Alignment and a Third Companion with new precise radial velocity data. The refined orbit of HAT-P-13 c lead to predicted possible transit window centered at JD 2455315.2 +/- 1.9 (28th April, 2010, 17h UT). ------- NEW 25th March 2010 --------- During April 2010, the observing window for transits of outer planet of HAT-P-13 double planetary system (HAT-P-13 c) will appear. Observers are called to join the observing campaign and try to find transits of this 428.5 day orbit exoplanet. More often HAT-P-13 b transit observations are also very encouraged (see bellow). Benjamin Nelson and colleques from University of Florida are enouncing observing campaign on this system, which should afford more information about HAT-P-13 b and c exoplanets. ------ HAT-P-13, to summarize, is a 10.6 magnitude, 1.22 solar mass star with a 2.9 day, transiting planet (b) and a ~430 day outer planet (c) with a highly eccentric orbit (~0.7). A lot of dynamical work can and has been done on this system. The transit probability, given the inclination distribution from these two papers (Mardling, 2010 and Beatty & Seager, 2010) is about 8% and the maximum transit duration is about 15 hours. Given the uncertainty in the orbital period, the planet may transit on a completely different date than predicted in the discovery paper, Bakos et al. 2009 - April 12th, 2010 at 9 AM UTC. Matt Payne (University of Florida) has done a histograms of the most likely times using MCMC algorithm. It predicts, that probably transit of HAT-P-13 c should occur between 9th and 24th April 2010 (2455302.5 +8.2 / -6.5 days). Where uncertainties are 1-sigma, i.e. they indicate the spread that would be required to encompass 68% of the MCMC data. See pictures: Not only search for a "c" planet. But "b" planet transit observations are strongly ecouraged. High precision observations of the inner planet can potentially yield a lot of information regarding the relative inclination in the system. Such observations should preferentially take place over an approximately 50-60 day period straddling the date of pericenter passage of the outer planet, i.e. approximately: JD 2455296 - 2455360, i.e. April 9th - June 12th DATA POSTING HAT-P-13 b transit observations should be submitted to TRESCA & ETD database using the model-fitting application form. HAT-P-13 c data should be sent to Benjamin Nelson, coordinator of the campaign. > Transit predictions for inner planet "b" (ETD) > Inside Information (oklo.org) NEW 22nd March 2010 > Two-Planet Perturbations for 2010 (by Bruce Gary) NEW 22nd March 2010 > HAT-P-13: good news and bad news at oklo.org (NEW 7th April 2010) REFERENCES: - Bakos et al. 2009: http://arxiv.org/abs/0907.3525 - Mardling, 2010: http://arxiv.org/abs/1001.4079 - Beatty & Seager, 2010: http://arxiv.org/abs/1002.3168 Campaign text compiled by Lubos Brat |
> Předpověď minim < QQ UMa (Holý S.)
V 474 Cam (Snaevarr Gudmundsson)
V 474 Cam (Snaevarr Gudmundsson)
V 474 Cam (Snaevarr Gudmundsson)
UV Lyn (Uhlar M.)
CRTS J102120.2-094738 Sex (Lomoz F.)
v0912 Per (Aleh Biheza)
NSVS 07453183 Lyn (Šmelcer L.)
NSVS 07453183 Lyn (Šmelcer L.)
NSVS 07453183 Lyn (Šmelcer L.)
WASP-41 b (E. Fernández-Lajús, R. Di)
Qatar-6 b (A. Wünsche)
HAT-P-54 b (A. Wünsche)
HAT-P-22 b (A. Valdera)
WASP-48 b (V. Hentunen)
XO-2 N b (V. Hentunen)
GPX-1 b (M. Raetz)
HAT-P-4 b (M. Raetz)
TOI-892 b (a. ettahar)
K2-19 b (Y. Jongen)
CCD: P. Dubovský: NOVACas2021 Cas, Z And, V 1413 Aql, NSV16874 Aur, UV Aur, : NOVACas2021 Cas, P. Dubovský: NOVACas2021 Cas, OJ287 Cnc, T CrB, TX CVn, VIZ: P. Dubovský: Z And, BB Aur, Eps Aur, NSV 16874 Aur, Psi1 Aur, Zeta Aur, Z Cam, NOVACas2021 Cas, Rho Cas, UY Cas, Delta Cep, V 730 Cep, OJ287 Cnc, YZ Cnc, AG Dra, Eta Gem, Mu Gem, U Gem, Zeta Gem, Alpha Ori, Aktivní pozorovatelny: Observatorio Astronómico Giordano Bruno STATUS: Aktivní20:38 - 04:38 PROGRAM: De 20:00 a 02:30 Palidoro STATUS: Aktivní10:47 - 18:47 PROGRAM: |