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ECLIPSING BINARIES OBSERVING PLAN |
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(Enero 2008 = ˇˇNUEVA LISTA DE ESTRELLAS!!)
PLAN 2005:
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ECLIPSING BINARIES OBSERVING PLAN |
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| Star | Position (2000.0) | Range (V) | Comment | Chart/ Note |
| NSV 310 (And) | 00 49 29.42 +35 26 28.5 | 9.48 - 9.7: | Long period EA | 2005 |
| GSC 3695 1845 (Per) | 02 38 24.04 +56 31 56.6 | 12.70 - 13.6: | Eccentric EA | |
| NSV 15581 (Cas) | 02 49 21.94 +60 32 27.9 | 12.15 - 12.5 | Long period EA | 2005 |
| V795 Cassiopeiae | 02 53 34.73 +73 46 16.3 | 8.86 - 9.11 | EA | 2005 |
| NSV 15635 (Per) | 03 07 45.30 +52 11 02.2 | 8.32 - 8.51 | Long period EA | 2005 |
| NSV 15666 (Per) | 03 19 18.52 +45 57 04.7 | 9.67 - 9.87 | EA | 2005 |
| V1125 Tauri | 03 38 58.77 +00 47 47.5 | 8.66 - 9.20: | EA | 2004 |
| NSV 1438 (Eri) | 04 02 43.12 -05 10 45.9 | 8.97 - 9.34: | Long period EA | |
| NSV 1853 (Aur) | 05 11 04.67 +44 39 24.2 | 12.3 - 12.6 | EA | 2005 |
| GSC 4347 1486 (Cam) | 05 12 20.95 +71 13 24.9 | 11.24 - 11.65: | Long period EA | |
| V1166 Tauri | 05 43 46.71 +26 49 09.2 | 9.37 - 9.59: | Long period EA | 2005 |
| PW Geminorum | 06 16 00.14 +23 46 59.7 | 9.10 - 9.46 | Long period EA | 2005 |
| NSV 16939 (Gem) | 06 38 35.52 +26 54 19.6 | 8.32 - 8.47 | Long period EA | |
| NSV 3224 (Gem) | 06 50 07.35 +16 30 25.1 | 11.50 - 11.9: | Long period EA | 2005 |
| NSV 17304 (Pup) | 07 02 52.81 -45 45 05.8 | 8.13 - 8.38 | Long period EA | 2005 |
| NSV 4128 (Cam) | 08 35 45.45 +74 15 01.3 | 13.5 - 13.9 | EA (ROTSE1 magnitudes) | 2005 |
| NSV 17948 (Hya) | 08 39 23.46 -09 34 39.7 | 8.66 - 8.83 | EA | |
| FX Ursae Majoris | 09 06 22.44 +68 26 42.5 | 7.07 - 7.27 | Long period EA | 2005 |
| NSV 18207 (Hya) | 09 28 20.37 -08 05 18.1 | 8.11 - 8.29 | EA | |
| TV Leonis Minoris | 09 55 45.66 +37 11 42.4 | 8.98 - 9.51 | EA | 2005 |
| KP Virginis | 12 27 50.96 -10 10 01.6 | 8.35 - 8.70 | Long period EA | 2004 |
| NSV 6145 (Cen) | 13 14 03.17 -62 02 56.6 | 11.93 - 12.35 | EA? | |
| NSV 19992 (Cen) | 13 55 43.25 -59 22 39.8 | 11.8 - 13.0 | EA? | |
| NSV 6693 (Lup) | 14 31 34.15 -50 23 40.8 | 9.47 - <9.8: | EA? A single eclipse in ASAS | |
| NSV 7529 (Aps) | 16 14 45.40 -70 23 09.3 | 12.47 - 13.4: | EA | |
| V916 Herculis | 16 46 35.49 +41 47 32.2 | 7.97 - 8.47 | Long period EA | 2004 |
| NSV 8069 (Sco) | 16 58 22.56 -39 23 50.7 | 11.36 - 12.22 | EA | |
| QS Serpentis | 18 19 48.17 -04 57 42.0 | 7.59 - 7.88: | Long period EA | 2005 |
| V539 Lyrae | 18 51 26.83 +39 19 14.0 | 7.27 - <7.61 | Long period EA | 2005 |
| V2077 Cygni | 19 16 44.50 +50 38 47.8 | 9.12 - 9.51 | EA | 2005 |
| HX Aquarii | 20 40 11.62 -00 55 34.8 | 12.28 - <12.6: | CST? (EA 2445177.78) | Note |
| V400 Vulpeculae | 20 40 42.27 +26 04 45.0 | 6.74 - 6.90: | EA | |
| GSC 3180 2110 (Cyg) | 21 08 40.69 +43 26 10.6 | 11.05 - 11.40 | EA | 2005 |
| NSV 25882 (Peg) | 22 21 26.77 +21 02 53.0 | 7.67 - 7.88 | Long period EA | |
| V381 Andromedae | 23 08 57.08 +38 54 54.6 | 7.34 - 7.55: | Long period EA | 2005 |
| GSC 4613 0333 (Cep) | 23 11 05.57 +81 55 29.5 | 10.00 - 10.40 | EA 2451408.804 + 50.306 x E ?? | 2005 |
| V389 Andromedae | 23 32 01.31 +43 49 20.5 | 8.17 - 8.50 | Long period EA | 2005 |
Colour References =
| = | Northern star (>+30 deg.) | |
| = | Equatorial star (+30 to -30 deg.) | |
| = | Southern star (<-30 deg.) |
38 stars in our program by December 31, 2007.
| As more stars are added (and as some are solved and thus dropped off the list) observers will be informed. |
ALL these stars have no period published. The goal is to observe them as often as possible in order to detect an eclipse and thus be able to determine the elements.
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NEWS: HIP 34188 in Monoceros is a very bright Algol system with no period (ASAS says 10.39 d. but it is wrong). Range is V= 8.71 - 9.2: There is an eclipse in HIP data and 4 eclipses in ASAS but that's not enough to get a period. it might be eccentric (12/21/2005).
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| PAST ANNOUNCEMENTS: GSC 3695 1845 has been added to the plan, it is an eccentric binary in Perseus. Range is V= 12.7 - 13.6: (11/30/2005). Pavol Dubovsky has prepared charts for three stars in the plan: NSV 3224, PW Gem and GSC 4613 0333. NSV 17304 has been included in the chart for L2 Puppis by S. Otero. (11/19/2005) GSC 4347 1486 in Camelopardalis is another unsolved eclipser added to the observing plan. (11/02/2005) More eclipses from Pavol Dubovsky allowed a new and improved period determination for GSC 3612 1565: the period was half the one previously given: 5.85 days. (11/01/2005) Pavol Dubovsky detected two visual eclipses on October 27. Another eccentric binary could be solved with his data: GSC 3612 1565, with a period of 11.71 days. GSC 4257 0906 was solved as an eccentric binary with a period of 12.92 days a couple of days ago but Pavol caught an eclipse that made possible to improve the period to 12.91506 d. (10/28/2005)
PX Hya was solved. It is an extremely eccentric binary with a period of 36.16 d. NSV 24564 was also solved. It is another very eccentric EA with a period of 19.24 d. GSC 0191 1523 was dropped off of the list. It had been published in IBVS 5644. It is actually NSV 3710, with a period of 4.01 d. (10/23/2005)
New chart: NSV 15737 in Taurus (09/18/2005) V1455 Aql was solved by Geert Hoogeveen. An EA with a period of 7.13 d. Surprisingly it is not eccentric. GSC 4613 0333, an EA in Cepheus was added to the program (08/20/2005) V990 Herculis and HD 43752 (Aur) were solved by Geert Hoogeveen. They are both eccentric systems. OZ Apodis had already been solved in IBVS 5630. (08/12/2005) EQ Bootis, GSC 0134 1181 (Ori), GSC 0169 2236 (CMi), NSV 8299 (Sco) and NSV 12772 (Sge) turned out to be all eccentric binaries solved by Geert Hoogeveen. NSV 18655 (Car) had already been solved by the author but forgotten in IBVS 5630. (08/10/2005)
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