Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 18, N 1 (2018)

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

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

Received:   2.01.2014;   accepted:   9.02.2018
(E-mail for contact: slovoktk@mail.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 USNO-A2.0 1425-1241900221 51 10.60, +59 49 45.0EB14.0014.08 0.645392456560.175min Comm. 1lc19873.png19873.pngout19873.txt
2 USNO-A2.0 1425-1243098421 51 42.66, +59 49 00.1EA15.6916.12 1.57232456559.584min  lc19564.png19564.pngout19564.txt
3 USNO-A2.0 1500-0848753921 51 53.40, +60 58 42.9EA13.0913.29 2.83332456201.169min Comm. 3lc27193.png27193.pngout27193.txt
4 USNO-A2.0 1425-1244985221 52 32.62, +59 59 34.1LB13.7013.88   other Comm. 4lc22980.png22980.pngout22980.txt
5 USNO-A2.0 1500-0850110221 52 36.18, +60 53 53.0HADS15.6416.13 0.0825952456560.187max Comm. 5lc28936.png28936.pngout28936.txt
6 USNO-A2.0 1425-1246919721 53 23.31, +59 33 54.0EW15.0315.22 0.440542456183.166max Comm. 6lc13821.png13821.pngout13821.txt
7 USNO-A2.0 1500-0852002021 53 33.15, +61 03 50.8SR:14.0514.20 79.32456560max Comm. 7lc25807.png25807.pngout25807.txt
8 USNO-A2.0 1425-1247628821 53 41.00, +59 37 18.2EB12.7712.88 0.7455962456205.387min Comm. 8lc14870.png14870.pngout14870.txt
9 USNO-A2.0 1500-0853418921 54 16.40, +60 04 55.1LB12.5212.61   other Comm. 9lc24319.png24319.pngout24319.txt
10 USNO-A2.0 1425-1249327721 54 24.15, +59 39 52.8EW15.2015.75 0.3330852456202.322min Comm. 10lc15846.png15846.pngout15846.txt
11 USNO-A2.0 1500-0856026521 55 35.13, +60 02 12.7LB13.2213.62   other Comm. 11lc23315.png23315.pngout23315.txt
12 USNO-A2.0 1425-1253374821 56 00.36, +59 44 42.1EB13.4113.50 0.6748982456197.242max Comm. 12lc17167.png17167.pngout17167.txt
13 USNO-A2.0 1500-0856969321 56 03.29, +61 05 52.1EA14.9915.25 4.16:2456182.29min  lc25590.png25590.pngout25590.txt
14 USNO-A2.0 1425-1254148221 56 18.45, +59 45 35.8EB15.1115.42 0.4221162456529.218min Comm. 14lc17510.png17510.pngout17510.txt
15 USNO-A2.0 1425-1254213921 56 19.90, +59 57 44.2LB13.1113.22   other Comm. 15lc21623.png21623.pngout21623.txt
16 USNO-A2.0 1425-1254289321 56 21.54, +59 53 16.0RRC:14.4014.58 0.274002456560.155max Comm. 16lc20108.png20108.pngout20108.txt
17 USNO-A2.0 1500-0858528821 56 50.65, +60 02 26.7EA15.0115.49 0.779452456205.097min Comm. 17lc23286.png23286.pngout23286.txt
18 USNO-A2.0 1425-1256992721 57 21.47, +59 32 50.3EA15.2715.78 0.542842456545.493min Comm. 18lc12688.png12688.pngout12688.txt
19 USNO-A2.0 1425-1259127721 58 10.06, +59 50 16.8E14.7415.17 1.75812456624.361min Comm. 19lc18762.png18762.pngout18762.txt
20 USNO-A2.0 1425-1259326721 58 14.58, +59 37 48.3LB12.3812.64   other Comm. 20lc14233.png14233.pngout14233.txt
21 USNO-A2.0 1500-0861943821 58 32.64, +61 07 45.0SR13.9314.16 93.92456580.5max Comm. 21lc25316.png25316.pngout25316.txt
22 USNO-A2.0 1425-1262088521 59 16.80, +59 41 56.6LB12.8513.09   other Comm. 22lc15580.png15580.pngout15580.txt
23 USNO-B1.0 1500-032508522 00 13.07, +60 05 57.7LB15.2015.44   other Comm. 23lc23982.png23982.pngout23982.txt
24 USNO-A2.0 1500-0865445822 00 18.42, +60 06 58.3BY14.1414.33 5.27322456580.072max Comm. 24lc24152.png24152.pngout24152.txt
25 USNO-A2.0 1500-0865757722 00 27.27, +60 07 43.4GDOR12.8012.86 0.525852456561.402min  lc24340.png24340.pngout24340.txt
26 USNO-B1.0 1497-033199422 00 44.57, +59 44 59.7BY15.0115.28 16.242456195.0max  lc16638.png16638.pngout16638.txt
27 USNO-B1.0 1501-032541822 01 43.03, +60 10 48.0EW12.6912.73 0.342882456580.200min Comm. 27lc25071.png25071.pngout25071.txt
28 USNO-A2.0 1425-1268066122 01 46.77, +59 45 32.8EB12.7612.84 0.526879:2456227.127max  lc16587.png16587.pngout16587.txt
29 USNO-A2.0 1500-0870099322 02 29.15, +61 02 05.1DSCT14.2214.36 0.0794332456228.084max  lc27603.png27603.pngout27603.txt
30 USNO-A2.0 1500-0870115422 02 29.61, +60 56 50.6LB12.6012.70   other Comm. 30lc29263.png29263.pngout29263.txt
31 USNO-A2.0 1500-0870797522 02 48.04, +60 08 02.2EA12.72<12.95 4.16302456561.378min Comm. 31lc24250.png24250.pngout24250.txt
32 USNO-A2.0 1425-1271501422 03 03.19, +59 48 21.3L12.8913.10   other Comm. 32lc17467.png17467.pngout17467.txt
33 USNO-A2.0 1500-0871885622 03 17.38, +60 56 59.5SR12.8313.21 1532456528max Comm. 33lc29308.png29308.pngout29308.txt
34 USNO-A2.0 1425-1273431822 03 43.14, +59 45 11.1LB11.9112.38   other Comm. 34lc16077.png16077.pngout16077.txt
35 USNO-A2.0 1425-1274443422 04 04.37, +59 48 33.4LB13.0113.28   other Comm. 35lc17451.png17451.pngout17451.txt
36 USNO-A2.0 1500-0874307622 04 26.46, +61 04 18.2LB12.9313.05   other Comm. 36lc27015.png27015.pngout27015.txt
37 USNO-A2.0 1500-0874462822 04 31.01, +60 03 53.8EA14.7114.98 2.258612456530.689min Comm. 37lc22857.png22857.pngout22857.txt
38 USNO-A2.0 1425-1277017622 04 57.41, +59 52 10.1LB14.1614.62   other Comm. 38lc18674.png18674.pngout18674.txt
39 USNO-A2.0 1425-1277670022 05 10.60, +59 51 52.0LB12.1612.39   other Comm. 39lc18418.png18418.pngout18418.txt
40 USNO-A2.0 1500-0877871522 06 08.78, +60 12 04.1EB12.1812.43 0.553172456560.205min Comm. 40lc25195.png25195.pngout25195.txt
41 USNO-A2.0 1500-0878227822 06 19.19, +61 00 54.2LB14.1914.39   other Comm. 41lc28263.png28263.pngout28263.txt
42 USNO-A2.0 1425-1281682922 06 33.43, +59 45 37.5EA13.9214.12 3.87242456554.285min Comm. 42lc16179.png16179.pngout16179.txt
43 USNO-A2.0 1425-1283872722 07 20.41, +59 43 15.5EA14.5514.95 2.055772456580.705min Comm. 43lc15382.png15382.pngout15382.txt
44 USNO-A2.0 1425-1286945822 08 22.34, +59 46 48.6EA15.3016.53 2.86672456198.716min Comm. 44lc16680.png16680.pngout16680.txt
45 USNO-A2.0 1425-1288406022 08 51.57, +59 55 35.6LB13.3413.63   other Comm. 45lc19601.png19601.pngout19601.txt
46 USNO-A2.0 1425-1289195722 09 07.50, +59 51 43.9SR13.6613.90 58.8:2456227.029max Comm. 46lc18235.png18235.pngout18235.txt

Comments:


1. MinII = 14m.05.

3. MinII = 13m.22.

4. J = 9m.723, H = 8m.569, K = 8m.104 (2MASS).

5. M–m = 0.17 P.

6. MinII = 15m.22.

7. J = 11m.806, H = 11m.098, K = 10m.847 (2MASS).

8. J = 11m.243, H = 10m.751, K = 10m.64 (2MASS).
1RXS J215522.8+593843, r = 12.9431 arcmin.

9. J = 8m.495, H = 7m.428, K = 7m.05 (2MASS).
The star in the NSVS database: NSVS ID 3422019 and NSVS ID 3375758. The NSVS data confirm the star's type.

10. MinII = 15m.64.

11. J = 8m.622, H = 7m.431, K = 6m.966 (2MASS).

12. MinII = 13m.49.

14. MinII = 15m.31.

15. J = 8m.878, H = 7m.746, K = 7m.35 (2MASS).
The star in the NSVS database: NSVS ID 3423367 and NSVS ID 3377198. The NSVS data confirm the star's type.

16. The twice longer period is possible, then variability type is EW.

17. MinII = 15m.16. D = 0.17 P.

18. MinII = 15m.53. D = 0.22 P.

19. MinII = 15m.15.

20. J = 7m.663, H = 6m.552, K = 6m.055 (2MASS).
The star in the NSVS database: NSVS ID 3424540. The NSVS data confirm the star's type.

21. J = 9m.472, H = 8m.29, K = 7m.863 (2MASS).

22. J = 8m.369, H = 7m.196, K = 6m.751 (2MASS).
The star in the NSVS database: NSVS ID 3425391. The NSVS data confirm the star's type.

23. J = 10m.349, H = 8m.935, K = 8m.337 (2MASS).

24. J = 10m.746, H = 9m.938, K = 9m.588 (2MASS).

27. MinII = 12m.73.

30. J = 7m.456, H = 6m.428, K = 5m.908 (2MASS).
The star in the NSVS database: NSVS ID 3382261. The NSVS data confirm the star's type.

31. MinII = 12m.81.

32. J = 11m.877, H = 11m.686, K = 11m.443 (2MASS).
The star in the NSVS database: NSVS ID 3428174. The NSVS data confirm the star's type.

33. J = 8m.464, H = 7m.325, K = 6m.86 (2MASS).
The star in the NSVS database: NSVS ID 3382875. The NSVS data confirm the star's type.

34. J = 7m.647, H = 6m.574, K = 6m.093 (2MASS).
The star in the NSVS database: NSVS ID 3428607. The NSVS data confirm the star's type.

35. J = 8m.689, H = 7m.268, K = 6m.644 (2MASS).

36. J = 8m.562, H = 7m.407, K = 6m.966 (2MASS).
The star in the NSVS database: NSVS ID 3383833. The NSVS data confirm the star's type.

37. The period of 2d.25147 is possible as well.

38. J = 13m.155, H = 12m.864, K = 12m.668 (2MASS).
The star is not identical to its nearest neighbor Mis V1308.

39. J = 7m.511, H = 6m.412, K = 6m.015 (2MASS).

40. MinII = 12m.30.
The star in the NSVS database: NSVS ID 3384698 and NSVS ID 3430508. The NSVS data confirm the star's type.

41. J = 9m.429, H = 7m.908, K = 7m.094 (2MASS).

42. MinII = 13m.99. MinII – MinI = 0.54 P.

43. MinII = 14m.62.

44. MinII = 15m.70.

45. J = 9m.078, H = 7m.866, K = 7m.456 (2MASS).

46. J = 9m.298, H = 8m.145, K = 7m.7 (2MASS).

Remarks:
We present the second part of our discoveries of variable stars in Cepheus. Our observations of an area in Cepheus were performed in the observatory of the 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). We obtained unfiltered CCD observations during 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 catalog (Monet et al. 1998). 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
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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