Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 18, N 2 (2018)

New Variable Stars in Cepheus: Area of 2°.3×2°.3, Centered at α=22h00m, δ=60°00′ (2000.0). Part III.

E. G. Lapukhin#1, S. A. Veselkov#1, A. M. Zubareva#2,3
#1. Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia;
#2. Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia;
#3. Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia.

Received:   4.01.2014;   accepted:   5.12.2018
(E-mail for contact: slovoktk@mail.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 USNO-B1.0 1506-031345921 50 43.19, +60 37 22.3SR14.915.4 1022456560.189max Comm. 1lc39523.png39523.pngout39523.txt
2 USNO-A2.0 1500-0846625221 50 45.18, +60 47 39.5EA15.816.4 1.146352456624.511min Comm. 2lc36278.png36278.pngout36278.txt
3 USNO-A2.0 1500-0848140921 51 33.65, +60 29 44.2EW15.416.2 0.319582456205.153min Comm. 3lc41600.png41600.pngout41600.txt
4 USNO-A2.0 1500-0848427721 51 42.70, +61 04 29.2HADS:14.915.3 0.2022192456529.237max  lc75422.png75422.pngout75422.txt
5 USNO-A2.0 1500-0850019421 52 33.47, +60 48 03.4EW15.515.9 0.288482456624.257min Comm. 5lc36471.png36471.pngout36471.txt
6 USNO-A2.0 1500-0850419721 52 45.40, +60 10 12.3EW15.816.4 0.423722456529.218min Comm. 6lc34013.png34013.pngout34013.txt
7 USNO-A2.0 1500-0850637421 52 51.99, +60 31 22.1EA15.1715.40 0.761622456567.028min Comm. 7lc41373.png41373.pngout41373.txt
8 USNO-A2.0 1500-0850651921 52 52.44, +60 11 40.4EW14.5515.12 0.385282456624.071min Comm. 8lc33294.png33294.pngout33294.txt
9 USNO-A2.0 1500-0851785921 53 26.59, +60 14 33.3EW15.0015.35 0.325092456567.144min Comm. 9lc32487.png32487.pngout32487.txt
10 USNO-A2.0 1500-0852377621 53 44.66, +60 30 33.6EW14.614.7 0.263862456560.134min Comm. 10lc41569.png41569.pngout41569.txt
11 USNO-A2.0 1500-0853743721 54 26.08, +60 13 20.3SR13.714.15 112:2456539max Comm. 11lc33141.png33141.pngout33141.txt
12 USNO-A2.0 1500-0855182921 55 09.86, +60 43 51.8SR13.6513.75 37.42456560.281max Comm. 12lc38246.png38246.pngout38246.txt
13 USNO-A2.0 1500-0855486521 55 19.03, +60 10 46.4LB12.4012.62   other Comm. 13lc34235.png34235.pngout34235.txt
14 USNO-A2.0 1500-0856661521 55 53.90, +60 26 41.9EW16.016.8 0.331792456205.142min Comm. 14lc42595.png42595.pngout42595.txt
15 USNO-A2.0 1500-0858523321 56 50.52, +60 52 14.4EA15.6016.45 0.772242456624.188min Comm. 15lc35889.png35889.pngout35889.txt
16 USNO-B1.0 1505-031974721 56 55.26, +60 34 14.8SR:13.6513.8 61.42456560max Comm. 16lc41116.png41116.pngout41116.txt
17 USNO-A2.0 1500-0859805621 57 28.94, +60 30 06.3EA12.6912.77 3.10792456529.919min Comm. 17lc42113.png42113.pngout42113.txt
18 USNO-A2.0 1500-0859996121 57 34.69, +60 54 10.2EW15.0015.25 0.3783892456567.285min Comm. 18lc35588.png35588.pngout35588.txt
19 USNO-A2.0 1500-0860604121 57 53.28, +60 17 07.3SR12.7513.0 95.12456554max Comm. 19lc32327.png32327.pngout32327.txt
20 USNO-A2.0 1500-0863249121 59 12.26, +60 46 35.8EA14.3614.74 1.7708:2456545.614min Comm. 20lc37865.png37865.pngout37865.txt
21 USNO-A2.0 1500-0863471221 59 19.15, +60 26 30.1EW13.3413.58 0.4400562456560.120min Comm. 21lc43187.png43187.pngout43187.txt
22 USNO-A2.0 1500-0864636821 59 54.58, +60 49 01.5SR:14.1514.25 52.82476222max Comm. 22lc37300.png37300.pngout37300.txt
23 USNO-A2.0 1500-0865536822 00 21.17, +60 33 42.1RRC:13.7513.90 0.294802456580.101max Comm. 23lc41508.png41508.pngout41508.txt
24 USNO-A2.0 1500-0865648522 00 24.31, +60 12 51.9RR:12.9613.02 0.589602456545.109max  lc34126.png34126.pngout34126.txt
25 USNO-A2.0 1500-0865941522 00 32.60, +60 37 23.6LB13.3513.6   other Comm. 25lc40624.png40624.pngout40624.txt
26 USNO-A2.0 1500-0867372022 01 13.80, +60 31 21.4LB12.3212.42   other Comm. 26lc42189.png42189.pngout42189.txt
27 USNO-A2.0 1500-0867870322 01 27.73, +60 22 26.8EW12.6112.78 0.649252456560.037min Comm. 27lc44279.png44279.pngout44279.txt
28 USNO-A2.0 1500-0868472522 01 44.63, +60 21 40.6LB12.4512.75   other Comm. 28lc31094.png31094.pngout31094.txt
29 USNO-A2.0 1500-0868980122 01 58.45, +60 50 08.4SR12.7512.85 59.62456203max Comm. 29lc37097.png37097.pngout37097.txt
30 USNO-A2.0 1500-0870204822 02 32.16, +60 41 12.0BY15.015.2 2.26192456560.521max  lc39548.png39548.pngout39548.txt
31 USNO-A2.0 1500-0870255022 02 33.50, +60 31 33.1SR15.015.7 80.62456560max Comm. 31lc42200.png42200.pngout42200.txt
32 USNO-A2.0 1500-0870400622 02 37.41, +60 11 44.3EA12.8112.88 1.618962456182.558min Comm. 32lc34804.png34804.pngout34804.txt
33 USNO-B1.0 1508-031794622 03 18.47, +60 48 06.4LB12.6312.80   other Comm. 33lc37676.png37676.pngout37676.txt
34 USNO-A2.0 1500-0872529122 03 35.38, +60 44 51.4EA14.3214.48 3.0122456528.261min Comm. 34lc38600.png38600.pngout38600.txt
35 USNO-A2.0 1500-0873954422 04 16.37, +60 34 54.1DSCT14.414.5 0.1717292456197.108max  lc41591.png41591.pngout41591.txt
36 USNO-A2.0 1500-0875798022 05 10.16, +61 10 18.2LB13.313.6   other Comm. 36lc73804.png73804.pngout73804.txt
37 USNO-A2.0 1500-0876803622 05 38.65, +60 43 34.3EW15.716.1 0.750432456553.904min Comm. 37lc39213.png39213.pngout39213.txt
38 USNO-A2.0 1500-0877329022 05 53.33, +60 14 35.7BCEP:13.9013.96 0.399412456205.283max  lc33983.png33983.pngout33983.txt
39 USNO-A2.0 1500-0878216822 06 18.88, +60 50 51.5EB15.215.7 1.119792456218.958min Comm. 39lc37133.png37133.pngout37133.txt
40 USNO-A2.0 1500-0878959422 06 40.69, +60 14 14.8LB12.612.8   other Comm. 40lc34199.png34199.pngout34199.txt
41 USNO-B1.0 1504-033007322 06 42.08, +60 24 59.4EA12.7312.90 3.537::2456227.208min Comm. 41lc30708.png30708.pngout30708.txt
42 USNO-A2.0 1500-0879966922 07 10.64, +60 45 21.0EA15.5516.0 1.127952456227.124min Comm. 42lc33551.png33551.pngout33551.txt
43 USNO-A2.0 1500-0881350622 07 51.68, +60 29 10.5EW12.8413.04 0.6975802456529.202min Comm. 43lc30127.png30127.pngout30127.txt
44 USNO-A2.0 1500-0882653722 08 30.71, +60 56 12.0BY:14.915.1 2.08492456201.313max  lc35250.png35250.pngout35250.txt
45 USNO-A2.0 1500-0883210522 08 48.40, +60 57 03.1EW12.9113.30 0.26151252456197.316min Comm. 45lc35138.png35138.pngout35138.txt
46 USNO-A2.0 1500-0883767722 09 06.23, +60 46 27.7HADS13.0713.25 0.16232312456528.240max  lc58787.png58787.pngout58787.txt

Comments:


1. J = 10m.14, H = 8m.909, K = 8m.442 (2MASS).

2. MinII = 16m.2.

3. MinII = 16m.04.

5. MinII = 15m.8.

6. MinII = 16m.4.

7. MinII = 15m.23.

8. MinII = 15m.02.

9. MinII = 15m.35.

10. MinII = 14m.67.

11. J = 10m.083, H = 8m.953, K = 8m.559 (2MASS).

12. J = 9m.093, H = 7m.822, K = 7m.316 (2MASS).

13. J = 8m.062, H = 6m.983, K = 6m.543 (2MASS).
The stars in the NSVS database: NSVS ID 3376613 and NSVS ID 3422774. The NSVS data confirm the star's type.

14. MinII = 16m.7.

15. MinII = 15m.71.

16. J = 9m.423, H = 8m.079, K = 7m.578 (2MASS).

17. MinII = 12m.76:.

18. MinII = 15m.25.

19. J = 7m.618, H = 6m.42, K = 5m.886 (2MASS).

20. Our observations covered one minimum only, therefore period is defined approximately.

21. MinII = 13m.53.

22. J = 10m.202, H = 9m.04, K = 8m.604 (2MASS).

23. The star is possibly multiperiodic.

25. J = 8m.323, H = 7m.174, K = 6m.643 (2MASS).

26. J = 7m.625, H = 6m.537, K = 6m.122 (2MASS).
The star in the NSVS database: NSVS ID 3381168. The NSVS data confirm the star's type.

27. MinII = 12m.77.

28. J = 7m.915, H = 6m.722, K = 6m.188 (2MASS).
The stars in the NSVS database: NSVS ID 3381433 and NSVS ID 3427460. The NSVS data confirm the star's type.

29. J = 8m.966, H = 7m.933, K = 7m.54 (2MASS).

31. J = 11m.279, H = 10m.076, K = 9m.61 (2MASS).

32. MinII = 12m.85. D = 0.09 P.

33. J = 8m.242, H = 7m.097, K = 6m.712 (2MASS).

34. The period of 5d.021 is possible.

36. J = 8m.567, H = 7m.315, K = 6m.855 (2MASS).
The star in the NSVS database: NSVS ID 3384383. The NSVS data confirm the star's type.

37. MinII = 16m.1.

39. MinII = 15m.35.

40. J = 7m.846, H = 6m.719, K = 6m.293 (2MASS).
The stars in the NSVS database: NSVS ID 3430905 and NSVS ID 3385059. The NSVS data confirm the star's type.

41. Periods of 1d.768, 6d.683 and 12d.03 are possible as well.

42. MinII = 15m.65:. D = 0.16 P.

43. MinII = 13m.00. O'Connell effect.

45. MinII = 13m.29.

Remarks:
The final - third - part of our discoveries of new variables in Cepheus on area of 2°.3×2°.3, centered at α=22h00m, δ=60°00′ (2000.0), includes 46 stars. Our observations were performed in the observatory of the Reshetnev Siberian State University of Science and Technologies with a Hamilton telescope (D = 400 mm, F = 915 mm) equipped with an FLI ML9000 CCD chip (3056×3056 pixels, pixel size 12 μm). Unfiltered CCD observations cover two time intervals from September to October 2012 and from August to November 2013. Exposure times were 30 seconds for all frames. The size of the field is 2°.3×2°.3. The magnitudes were referred to red magnitudes of comparison stars from the USNO-A2.0 and USNO-B1.0 catalogs (Monet et al. 1998 and Monet et al. 2003). We used VaST (Sokolovsky & Lebedev 2018) software to search for new variable stars. To find periods, we applied WinEfk software provided by Dr. V.P. Goranskij. Observations for several stars can also be found in the ROTSE-I/NSVS survey (Woźniak et al. 2004).

Acknowledgements: The authors wish to thank Dr. V.P. Goranskij for providing his efficient period-search software and Dr. K.V. Sokolovsky for providing VaST (a software package for detection of variable objects on a series of astronomical images). This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the UMass/IPAC-Caltech, funded by the NASA and the NSF, and the Aladin interactive sky atlas, operated at CDS, Strasbourg, France.

References:
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

Monet, D., Levine, S., Canzian, B., et al., 2003, USNO-B1.0, A Catalog of Astrometric Standards (U.S. Naval Observatory, Washington, DC), Centre de Données Astronomiques de Strasbourg, I/284

Sokolovsky, K. V., Lebedev, A. A., 2018, Astron. and Computing, 22, 28
Woźniak, P.R., Vestrand, W.T., Akerlof, C.W., et al., 2004, Astron. J., 127, 2436



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