EccentriCAT - DEEP (Citizen Astronomy Timing of Eccentric Eclipses)

  1. Úvod
  2. Projekty a kampaně
  3. EccentriCAT - DEEP (Citizen Astronomy Timing of Eccentric Eclipses)

Projekt

  • Jméno: EccentriCAT - DEEP (Citizen Astronomy Timing of Eccentric Eclipses)
  • Krátký popis: Timing eccentric binaries with backyard telescopes to study apsidal motion and orbital variations. A citizen science project.
  • Vedoucí: Marek Wolf
  • Změněno: 01.10.2026
  • Platnost: 31.01.2026 - 31.01.2031
In cooperation with Marek Wolf, Associate Professor at Charles University in Prague, we aim to monitor eccentric binary stars to detect and characterize apsidal motion and other phenomena revealed by times of minima. We are calling for ethusiast amateur astronommers with telescopes up to 25 centimeters of diameter.

Study of eccentric eclipsing binaries provides new information about the structure and evolution of stars. Analysis of the apsidal motion (i.e., the rotation of the line of apsides) yields the so‑called internal structure constant, an important parameter in all current stellar models. Apsidal motion also has a relativistic component, which therefore allows tests of the laws of general relativity outside the Solar System. In eccentric binaries we quite often find a third component whose influence on the eclipses can be separated in the O–C diagram.

The aim of the observations is to monitor the eclipses of known eccentric binaries and, by combining data over a longer time span, to derive or refine the period of the apsidal motion.

Data added to the project will be evaluated annually and analyses of selected systems will be published in a professional journal. Observers will be able to become co‑authors of the publications.

Primary investigator: Marek Wolf, Charles University Prague, MarekWolf@seznam.cz

Project organiser: Filip Walter, Czech Astronomical Society, walter@planetum.cz

Local contacts:

CZECHIA: Filip Walter, Czech Astronomical Society, walter@planetum.cz

ITALY: Ivo Peretto, Marana space explorer center, ricerca@marsec.it

Statistiky

  • Pozorování za poslední rok: 42
  • Pozorování celkem: 106
  • Nejnovější pozorování: 02.10.2026

Objekty zájmu - Hvězdy

ID Jméno Priorita Rektascenze Deklinace Souhvězdí Typ proměnnosti Perioda (d) Maximum (Mag) Minimum (Mag) Sek. minimum (Mag)
9226 AL Ari 2 02 42 36.36 +12 44 08.10 Ari EA 3.747457 9.23 9.77 9.408
9964 V0409 Cam 2 05 46 43.75 +75 20 57.00 Cam EA,disp 6.67646 11.03 11.29 11.03
10116 WW Cam 4 04 31 25.28 +64 21 45.50 Cam EA,disp 2.274365 10.6 11.1 11.1
10498 DN Cas 4 02 23 11.54 +60 49 50.20 Cas EA 2.310951 9.81 10.24 10.13
10726 OX Cas 4 01 09 00.10 +61 28 14.80 Cas EA 2.489344 9.9 10.35 9.9
10728 PV Cas 5 23 10 02.57 +59 12 06.20 Cas EA 1.75046986 9.71 10.36 10.36
10764 V0381 Cas 3 00 32 51.61 +49 19 39.33 Cas EA 1.745943 10.08 10.589 10.55
10845 V0785 Cas 5 02 10 49.89 +64 49 45.10 Cas EA 2.70252 9.331 9.64 9.331
10876 V1018 Cas 3 03 01 19.40 +60 34 20.00 Cas EA 4.12778 10.26 10.56 10.52
10929 V1137 Cas 1 01 34 54.01 +67 38 14.80 Cas EA 4.158995 11.85 12.39 11.85
11713 V0731 Cep 1 23 37 43.29 +64 18 11.60 Cep EA,disp 6.06844 10.32 11.17 10.97
11720 V0743 Cep 1 22 18 06.21 +55 54 15.52 Cep EA 4.67226 10.53 10.85 10.8
12204 SW CMa 1 07 08 15.24 -22 26 25.30 CMa EA,disp 10.091985 9.15 9.75 9.7
13085 V0442 Cyg 2 20 27 52.30 +30 47 28.40 Cyg EA 2.3859454 10 10.4 10.49
13185 V0796 Cyg 5 19 33 56.10 +47 18 34.20 Cyg EA,disp 1.4808693 10.9 11.4 11.4
13253 V1034 Cyg 5 20 05 34.81 +30 58 33.10 Cyg EB 0.976932 9.6 10.6 9.9
13410 V2544 Cyg 1 20 27 17.30 +37 56 26.10 Cyg EA 2.093767 12.69 13.26 13.25
15505 RW Lac 1 22 44 57.10 +49 39 27.50 Lac EA/DM 10.369207 10.4 11 10.8
16484 HI Mon 1 06 55 49.06 -04 02 35.80 Mon EB 1.5744326 9.3 10.1 9.9
16510 RU Mon 1 06 54 12.32 -07 35 45.00 Mon EA 3.5848359 10.33 11.18 11.06
16533 V0450 Mon 1 06 49 19.31 +00 19 51.10 Mon EB 2.597008 12.1 12.7 12.6
16552 V0498 Mon 1 06 39 44.25 +01 57 45.30 Mon EA,disp 2.472768 10.3 10.6 10.3
16563 V0521 Mon 1 06 55 53.55 -00 14 23.70 Mon EA 2.9707 10 10.5 10.4
16766 GM Nor 1 15 51 57.97 -55 21 48.30 Nor EA 1.88458 10.58 11.03 11.01
17029 V0456 Oph 5 18 43 05.82 +08 50 23.30 Oph EA 1.016001 10.2 10.7 10.5
17462 EW Ori 1 05 20 09.15 +02 02 40.00 Ori EA 6.9368515 9.9 10.6 10.5
18180 V0871 Per 1 02 44 15.89 +56 40 56.00 Per EA 3.023885 10.92 11.5 11.38
19354 V0523 Sgr 1 19 02 54.60 -29 08 33.80 Sgr EA,disp 2.3238123 9.57 9.9 9.88
19357 V0526 Sgr 1 19 08 15.03 -31 20 54.90 Sgr EA 1.9194111 9.78 10.54 10.2
19629 YY Sgr 1 18 44 35.84 -19 23 23.00 Sgr EA 2.628476 10.02 10.73 10.64
20486 BP Vul 5 20 25 33.25 +21 02 18.00 Vul EA 1.940346 10.1 11.3 10.5
20579 V0495 Vul 5 19 53 45.30 +20 30 33.00 Vul EA 1.635135 9.76 11.16 10.14
101229 ASASSN-V J052227.78+345257.6 2 05 22 27.78 +34 52 57.58 Aur EA 2.4263 12.08 12.28
101231 ASASSN-V J230945.10+605349.3 2 23 09 45.10 +60 53 49.27 Cep EA 2.08976 12.71 13.04
101232 V1461 Cas 2 23 46 08.57 +62 03 01.26 Cas EA 3.30031 11.29 11.96