Journal "Peremennye Zvezdy"

"Peremennye Zvezdy",
Prilozhenie,
vol. 14, N 12 (2014)

New Variable Stars in Lacerta: Area of 2°.3×2°.3, Centered at α=22h50m, δ=50°00′ (2000.0). Part III.

E. G. Lapukhin^#1, S. A. Veselkov^#1, A. M. Zubareva^#2,3, E. D. Starovoit^#1, I. V. Kolbasina^#1
#1. Siberian State Aerospace University, Krasnoyarsk, Russia;
#2. Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia;
#3. Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia

ISSN 2221–0474

Received: 24.03.2012; accepted: 16.12.2014
(E-mail for contact: slovoktk@mail.ru)

#	Other	Coord (J2000)	Type	Max	Min	Period	Epoch (JD)	type	Comment	L.Curve	Find.Chart	Data
1	USNO-A2.0 1350-17459316	22 51 55.23, +50 03 36.9	EA	16.1	16.8	1.6598	2455824.559	Min	Comm. 1	lc2251.png	ch_2251.png	out2251.txt
2	USNO-A2.0 1350-17462675	22 52 02.51, +48 59 03.2	EW	15.45	15.81	0.41099	2455790.752	Min	Comm. 2	lc00830.png	ch_00830.png	out00830.txt
3	USNO-A2.0 1350-17469822	22 52 18.35, +50 47 22.9	EA	15.23	16.10	1.3944	2455818.724	Min	Comm. 3	lc27665.png	ch_27665.png	out27665.txt
4	USNO-A2.0 1350-17476147	22 52 32.04, +48 55 17.8	EW	14.45	14.64	0.25489	2455835.098	Min	Comm. 4	lc49386.png	ch_49386.png	out49386.txt
5	USNO-A2.0 1350-17476709	22 52 33.28, +50 50 51.1	EW	13.88	14.24	0.43732	2455829.130	Min	Comm. 5	lc26989.png	ch_26989.png	out26989.txt
6	USNO-A2.0 1350-17479069	22 52 38.31, +48 53 34.8	LB:	12.85	13.11:			other	Comm. 6	lc61599.png	ch_61599.png	out61599.txt
7	USNO-A2.0 1350-17479767	22 52 39.83, +49 59 20.6	EW	11.95	12.09	0.41560	2455800.081	Min	Comm. 7	lc42835.png	ch_42835.png	out42835.txt
8	USNO-A2.0 1350-17481302	22 52 43.27, +50 29 09.9	LB	12.68	12.85			other	Comm. 8	lc31695.png	ch_31695.png	out31695.txt
9	USNO-A2.0 1350-17481388	22 52 43.47, +50 32 54.2	DSCTC	12.78	12.81	0.07990	2455795.263	Max		lc30883.png	ch_30883.png	out30883.txt
10	USNO-A2.0 1350-17481809	22 52 44.50, +50 46 38.6	EW	14.02	14.26	0.49640	2455819.377	Min	Comm. 10	lc27872.png	ch_27872.png	out27872.txt
11	USNO-A2.0 1350-17481943	22 52 44.81, +50 31 36.3	BY:	13.71	13.76	0.82559:		Max	Comm. 11	lc31097.png	ch_31097.png	out31097.txt
12	USNO-A2.0 1350-17483211	22 52 47.55, +50 27 39.5	DSCTC	12.74	12.77	0.113953	2455828.185	Max		lc31997.png	ch_31997.png	out31997.txt
13	USNO-A2.0 1350-17485503	22 52 52.45, +51 05 51.3	EA	13.46	13.55	5.032:	2455820.32	Min		lc44317.png	ch_44317.png	out44317.txt
14	USNO-A2.0 1350-17486565	22 52 54.89, +49 22 02.6	HADS	12.24	12.44	0.128294	2455821.118	Max		lc42388.png	ch_42388.png	out42388.txt
15	USNO-A2.0 1350-17488242	22 52 58.56, +49 24 11.4	L	12.87	12.92			other	Comm. 15	lc06115.png	ch_06115.png	out06115.txt
16	USNO-A2.0 1350-17491180	22 53 05.18, +50 19 11.4	EW	15.62	16.06	0.53008	2455822.141	Min	Comm. 16	lc24002.png	ch_24002.png	out24002.txt
17	USNO-A2.0 1350-17493620	22 53 10.63, +49 02 25.7	EA	15.54	16.00	0.46006	2455823.510	Min	Comm. 17	lc01480.png	ch_01480.png	out01480.txt
18	USNO-A2.0 1350-17493882	22 53 11.20, +49 08 04.8	EA	14.65	15.14	2.64:	2455823.65	Min	Comm. 18	lc02705.png	ch_02705.png	out02705.txt
19	USNO-A2.0 1350-17495142	22 53 14.03, +50 38 02.2	EW	15.57	15.80	0.40532	2455822.321	Min	Comm. 19	lc29620.png	ch_29620.png	out29620.txt
20	USNO-A2.0 1350-17497989	22 53 20.31, +50 44 32.6	EW	16.24	16.48	0.3081	2455823.069	Min	Comm. 20	lc22207.png	ch_22207.png	out22207.txt
21	USNO-A2.0 1350-17502797	22 53 30.88, +49 11 10.6	EW	16.64	17.3	0.3705	2455820.526	Min	Comm. 21	lc1233.png	ch_1233.png	out1233.txt
22	USNO-A2.0 1350-17505207	22 53 36.28, +49 10 38.2	EW	14.24	14.41	0.75235	2455819.540	Min	Comm. 22	lc03249.png	ch_03249.png	out03249.txt
23	USNO-A2.0 1350-17507138	22 53 40.51, +49 47 35.1	DSCTC	12.98	13.01	0.06350	2455821.316	Max		lc11242.png	ch_11242.png	out11242.txt
24	USNO-A2.0 1350-17508292	22 53 43.21, +50 03 51.1	EA/RS:	13.05	13.19:	11.75	2455825.825	Min	Comm. 24	lc15047.png	ch_15047.png	out15047.txt
25	USNO-A2.0 1350-17509346	22 53 45.53, +50 07 52.0	EW	15.4	15.55	0.30763	2455825.342	Min	Comm. 25	lc16064.png	ch_16064.png	out16064.txt
26	USNO-A2.0 1350-17509430	22 53 45.71, +49 37 12.5	BY	15.55	15.69	0.75119		Max	Comm. 26	lc09095.png	ch_09095.png	out09095.txt
27	USNO-A2.0 1350-17510714	22 53 48.54, +49 48 13.2	EA	14.52	14.74	2.618	2455795.731	Min	Comm. 27	lc11492.png	ch_11492.png	out11492.txt
28	USNO-A2.0 1350-17513845	22 53 55.54, +50 11 12.5	BY:	14.16	14.23	17.3		Max	Comm. 28	lc16754.png	ch_16754.png	out16754.txt
29	USNO-A2.0 1350-17514208	22 53 56.31, +49 47 37.3	EW	15.5	15.7	0.26834	2455823.343	Min	Comm. 29	lc11374.png	ch_11374.png	out11374.txt
30	USNO-A2.0 1350-17517479	22 54 03.29, +49 09 16.7	EA	13.89	14.54	0.432550	2455823.244	Min	Comm. 30	lc02923.png	ch_02923.png	out02923.txt
31	USNO-A2.0 1350-17520150	22 54 09.12, +50 44 30.4	EA	14.40	14.64	2.230	2455833.137	Min	Comm. 31	lc28399.png	ch_28399.png	out28399.txt
32	USNO-A2.0 1350-17522059	22 54 13.42, +50 43 03.3	EW	12.59	12.66	0.31684	2455795.285	Min	Comm. 32	lc28676.png	ch_28676.png	out28676.txt
33	USNO-A2.0 1350-17522898	22 54 15.32, +49 38 00.8	BY	13.87	13.92	2.71		Max	Comm. 33	lc09197.png	ch_09197.png	out09197.txt
34	USNO-A2.0 1350-17522988	22 54 15.54, +49 24 23.0	EB	13.89	14.07	1.4861	2455827.812	Min	Comm. 34	lc06117.png	ch_06117.png	out06117.txt
35	USNO-A2.0 1350-17525752	22 54 21.53, +49 56 04.3	EW	16.65	17.15	0.44057	2455850.145	Min	Comm. 35	lc2213.png	ch_2213.png	out2213.txt
36	USNO-A2.0 1350-17525777	22 54 21.59, +49 49 27.9	EW	12.35	12.56	0.36675	2455790.197	Min	Comm. 36	lc11707.png	ch_11707.png	out11707.txt
37	USNO-A2.0 1350-17526565	22 54 23.31, +50 55 07.5	EW	15.84	16.24	0.41461	2455829.234	Min	Comm. 37	lc3241.png	ch_3241.png	out3241.txt
38	USNO-A2.0 1350-17527499	22 54 25.22, +49 48 38.6	EA	13.44	13.66	1.29603	2455827.956	Min	Comm. 38	lc11400.png	ch_11400.png	out11400.txt
39	USNO-A2.0 1350-17537214	22 54 46.21, +49 39 34.6	EA	14.82	15.13	4.524	2455820.858	Min	Comm. 39	lc09521.png	ch_09521.png	out09521.txt
40	USNO-A2.0 1350-17539087	22 54 50.42, +49 05 06.5	EA	15.06	15.26	1.505:	2455845.704	Min	Comm. 40	lc01965.png	ch_01965.png	out01965.txt
41	USNO-A2.0 1350-17540406	22 54 53.27, +49 35 05.8	EW	12.57	12.66	0.47174	2455822.212	Min	Comm. 41	lc08433.png	ch_08433.png	out08433.txt
42	USNO-A2.0 1350-17540419	22 54 53.30, +49 26 34.4	EA	14.90	15.53:	3.2635	2455826.26	Min	Comm. 42	lc06615.png	ch_06615.png	out06615.txt
43	USNO-A2.0 1350-17546912	22 55 07.58, +48 59 31.7	DSCTC	12.68	12.71	0.08002	2455819.355	Max		lc00621.png	ch_00621.png	out00621.txt
44	USNO-A2.0 1350-17547322	22 55 08.51, +50 25 00.2	EW	15.47	15.66	0.2470	2455819.381	Min	Comm. 44	lc3221.png	ch_3221.png	out3221.txt
45	USNO-A2.0 1350-17548386	22 55 10.79, +50 57 19.7	SR:	12.95	13.10	40:	2455825.0	Max	Comm. 45	lc25234.png	ch_25234.png	out25234.txt
46	USNO-A2.0 1350-17555371	22 55 26.43, +49 57 12.2	EB	14.18	14.39	1.0513	2455828.937	Min	Comm. 46	lc13485.png	ch_13485.png	out13485.txt
47	USNO-A2.0 1350-17556451	22 55 28.75, +50 54 09.1	EW	17.1	17.9	0.32948	2455822.336	Min	Comm. 47	lc3213.png	ch_3213.png	out3213.txt
48	USNO-A2.0 1350-17558402	22 55 33.14, +48 54 38.3	LB:	13.88	14.10			other	Comm. 48	lc62888.png	ch_62888.png	out62888.txt
49	USNO-A2.0 1350-17561276	22 55 39.55, +49 40 21.2	EA	13.14	13.22	1.0596	2455795.108	Min	Comm. 49	lc09599.png	ch_09599.png	out09599.txt
50	USNO-A2.0 1350-17563606	22 55 44.80, +51 10 08.2	EW	16.8	17.4	0.37495	2455819.373	Min	Comm. 50	lc3214.png	ch_3214.png	out3214.txt
51	USNO-A2.0 1350-17568949	22 55 56.90, +50 36 38.4	BY:	14.65	14.88:	31.7		Max	Comm. 51	lc30111.png	ch_30111.png	out30111.txt
52	USNO-A2.0 1350-17572012	22 56 03.84, +49 57 14.1	EA	12.63	12.79:	6.171:	2455792.51	Min	Comm. 52	lc13354.png	ch_13354.png	out13354.txt
53	USNO-A2.0 1350-17574515	22 56 09.48, +49 02 14.4	EW	16.25	16.7	0.42231	2455825.298	Min	Comm. 53	lc01299.png	ch_01299.png	out01299.txt
54	USNO-A2.0 1350-17575743	22 56 12.21, +50 34 45.8	EW	16.26	16.54	0.29541	2455824.056	Min	Comm. 54	lc30560.png	ch_30560.png	out30560.txt
55	USNO-A2.0 1350-17579297	22 56 20.25, +48 51 05.6	LB:	12.24:	12.43:			other	Comm. 55	lc59635.png	ch_59635.png	out59635.txt
56	USNO-A2.0 1350-17582667	22 56 27.71, +49 24 26.6	EA/RS:	13.68	13.89	4.43	2455826.684	Min	Comm. 56	lc49013.png	ch_49013.png	out49013.txt
57	USNO-A2.0 1350-17586681	22 56 37.14, +50 14 47.1	EW	12.07	12.36	0.85377	2455802.066	Min	Comm. 57	lc74973.png	ch_74973.png	out74973.txt
58	USNO-A2.0 1350-17588175	22 56 40.53, +49 28 51.0	EW	16.2	16.6	0.35980	2455832.153	Min	Comm. 58	lc50916.png	ch_50916.png	out50916.txt
59	USNO-A2.0 1350-17588316	22 56 40.85, +50 37 45.8	RRC	16.08	16.26	0.2347	2455819.505	Max	Comm. 59	lc3216.png	ch_3216.png	out3216.txt
60	USNO-A2.0 1350-17589283	22 56 43.15, +49 59 43.8	EW	15.48	15.62	0.35359	2455822.030	Min	Comm. 60	lc51484.png	ch_51484.png	out51484.txt
61	USNO-A2.0 1350-17590815	22 56 46.56, +49 43 45.2	EW	16.7	17.9	0.40566	2455822.449	Min	Comm. 61	lc2217.png	ch_2217.png	out2217.txt
62	USNO-A2.0 1350-17596466	22 56 59.62, +50 14 44.7	EW	14.34	14.64	0.48887	2455825.533	Min	Comm. 62	lc55558.png	ch_55558.png	out55558.txt

Comments:

1. Min_II = 16^m.82.

2. Min_II = 15^m.78.

3. Min_II = 15^m.30.

4. Min_II = 14^m.63.

5. Min_II = 14^m.22.

6. J = 9.701, H = 8.762, K = 8.431 (2MASS).

7. Min_II = 12^m.08.

8. J = 9.257, H = 8.282, K = 7.954 (2MASS).

10. Min_II = 14^m.21.

11. J = 11.879, H = 11.296, K = 11.174 (2MASS).

15. J = 10.952, H = 10.464, K = 10.308 (2MASS).

16. Min_II = 16^m.02.

17. Min_II = 15^m.69.

18. Min_II = 15^m.06:.

19. Min_II = 15^m.80.

20. Min_II = 16^m.47.

21. Min_II = 17^m.1.

22. Min_II = 14^m.40. is possible.

24. Min_II = 13^m.14.

25. Min_II = 15^m.55.

26. J = 13.765, H = 13.145, K = 13.000 (2MASS).

27. Min_II = 14^m.72.

28. J = 12.185, H = 11.573, K = 11.452 (2MASS).

29. Min_II = 15^m.6.

30. Min_II = 14^m.53.

31. Min_II = 14^m.45.

32. Min_II = 12^m.64.

33. J = 12.526, H = 12.266, K = 12.168 (2MASS).

34. Min_II = 14^m.02.

35. Min_II = 17^m.1.

36. Min_II = 12^m.53.

37. Min_II = 16^m.15.

38. Min_II = 13^m.49.
GSC 03630-00738. Bakos et al. (2002) found P = 0^d.18.

39. Min_II = 15^m.08.

40. Min_II = 15^m.17.

41. Min_II = 12^m.65.

42. Min_II = 15^m.00.

44. Min_II = 15^m.66.

45. J = 9.803, H = 8.853, K = 8.565 (2MASS).

46. Min_II = 14^m.35.

47. Min_II = 17^m.8.

48. J = 11.999, H = 11.369, K = 11.237 (2MASS).

49. Min_II = 13^m.20.

50. Min_II = 17^m.3.

51. J = 12.827, H = 12.200, K = 12.035 (2MASS).

52. Min_II = 12^m.65:.

53. Min_II = 16^m.6.

54. Min_II = 16^m.48.

55. J = 8.940, H = 7.999, K = 7.739 (2MASS).

56. Min_II = 13^m.80.

57. Min_II = 12^m.31.
GSC 03630-00750. Bakos et al. (2002) found P = 0^d.43.

58. Min_II = 16^m.5.

59. A twice longer period with EW type is possible.

60. Min_II = 15^m.61.

61. Min_II = 17^m.6.

62. Min_II = 14^m.62. O'Connell effect. A twice shorter period with RRC type O'Connell effect.

Remarks:
On August 16 – October 30, 2011, we obtained about 1600 images with 30-second exposures of a field in Lacerta for discovery and investigation of new variables stars. The field has the coordinates α = 22^h50^m , δ = +50°00′ and size 2.3°×2.3°. Here the third part of our results is presented.
Our observations were performed in the city of Krasnoyarsk with a Hamilton telescope (D = 400 mm, F = 915 mm) equipped with an unfiltered FLI ML-9000 CCD camera (3056×3056 pixels, pixel size 12 μm). For basic reductions for dark current, flat fields, bias, and for removing cosmic-ray hits, we used MaxIm DL software. The magnitudes were referred to red magnitudes of comparison stars from the USNO-A2.0 catalog (Monet et al. 1998). For search and photometry of the majority of new variable stars, we applied VaST software (developed by K. Sokolovsky and A. Lebedev, described by Kolesnikova et al. 2008). Some of the variable stars were found with C-Munipack package. To search for periods, we applied WinEfk software provided by V.P. Goranskij.
We also determined types and periods for two known variable stars (GSC 03630-00738 and GSC 03630-00750).

Acknowledgements: The authors wish to thank Dr. V.P. Goranskij for providing WinEfk software and Dr. K. Sokolovsky and A. Lebedev for VaST software.

References:
Bakos, G.A., Lazar, J., Papp, I., et al., 2002, Publ. Astron. Soc. Pacific, 114, 974
Kolesnikova, D.M., Sat, L.A., Sokolovsky, K.V., et al., 2008, Acta Astron., 58, 279
Monet, D., Bird, A., Canzian, B., et al., 1998, USNO-A2.0, A Catalog of Astrometric Standards (U.S. Naval Observatory, Washington, DC),
Centre de Données Astronomiques de Strasbourg, I/252