CC BY
12"Peremennye Zvezdy", Prilozhenie, vol. 18, N 1 (2018)
New Variable Stars in Cepheus: Area of 2°.3x2°.3, Centered at a=22h00m, 5=60°00' (2000.0). Part II
E. G. Lapukhin#1, S. A. Veselkov#'. 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: [email protected])
# Name | Other Coord (J2000) Typ-e Max Min Svstem Period Epoch (JD) a -wi Sp. Comment L.Curve Find.Chart Data
1 USNO-A2.0 1425-12419002 21 51 10.60, +59 49 45.0 EB 14.00 14.08 0.64539 2456560.175 min Comm. 1 lc19873.png 19873.png out19873.txt
2 USNO-A2.0 1425-12430984 21 51 42.66, +59 49 00.1 EA 15.69 16.12 1.5723 2456559.584 min lc19564.png 19564.png out19564.txt
3 USNO-A2.0 1500-08487539 21 51 53.40, +60 58 42.9 EA 13.09 13.29 2.8333 2456201.169 min Comm. 3 lc27193.png 27193.png out27193.txt
4 USNO-A2.0 1425-12449852 21 52 32.62, +59 59 34.1 LB 13.70 13.88 other Comm. 4 lc22980.png 22980.png out22980.txt
5 USNO-A2.0 1500-08501102 21 52 36.18, +60 53 53.0 HADS 15.64 16.13 0.082595 2456560.187 max Comm. 5 lc28936.png 28936.png out28936.txt
6 USNO-A2.0 1425-12469197 21 53 23.31, +59 33 54.0 EW 15.03 15.22 0.44054 2456183.166 max Comm. 6 lc13821.png 13821.png out13821.txt
7 USNO-A2.0 1500-08520020 21 53 33.15, +61 03 50.8 SR: 14.05 14.20 79.3 2456560 max Comm. 7 lc25807.png 25807.png out25807.txt
8 USNO-A2.0 1425-12476288 21 53 41.00, +59 37 18.2 EB 12.77 12.88 0.745596 2456205.387 min Comm. 8 lc14870.png 14870.png out14870.txt
9 USNO-A2.0 1500-08534189 21 54 16.40, +60 04 55.1 LB 12.52 12.61 other Comm. 9 lc24319.png 24319.png out24319.txt
10 USNO-A2.0 1425-12493277 21 54 24.15, +59 39 52.8 EW 15.20 15.75 0.333085 2456202.322 min Comm. 10 lc15846.png 15846.png out15846.txt
11 USNO-A2.0 1500-08560265 21 55 35.13, +60 02 12.7 LB 13.22 13.62 other Comm. 11 lc23315.png 23315.png out23315.txt
12 USNO-A2.0 1425-12533748 21 56 00.36, +59 44 42.1 EB 13.41 13.50 0.674898 2456197.242 max Comm. 12 lc17167.png 17167.png out17167.txt
13 USNO-A2.0 1500-08569693 21 56 03.29, +61 05 52.1 EA 14.99 15.25 4.16: 2456182.29 min lc25590.png 25590.png out25590.txt
14 USNO-A2.0 1425-12541482 21 56 18.45, +59 45 35.8 EB 15.11 15.42 0.422116 2456529.218 min Comm. 14 lc17510.png 17510.png out17510.txt
15 USNO-A2.0 1425-12542139 21 56 19.90, +59 57 44.2 LB 13.11 13.22 other Comm. 15 lc21623.png 21623.png out21623.txt
16 USNO-A2.0 1425-12542893 21 56 21.54, +59 53 16.0 RRC: 14.40 14.58 0.27400 2456560.155 max Comm. 16 lc20108.png 20108.png out20108.txt
17 USNO-A2.0 1500-08585288 21 56 50.65, +60 02 26.7 EA 15.01 15.49 0.77945 2456205.097 min Comm. 17 lc23286.png 23286.png out23286.txt
18 USNO-A2.0 1425-12569927 21 57 21.47, +59 32 50.3 EA 15.27 15.78 0.54284 2456545.493 min Comm. 18 lc12688.png 12688.png out12688.txt
19 USNO-A2.0 1425-12591277 21 58 10.06, +59 50 16.8 E 14.74 15.17 1.7581 2456624.361 min Comm. 19 lc18762.png 18762.png out18762.txt
20 USNO-A2.0 1425-12593267 21 58 14.58, +59 37 48.3 LB 12.38 12.64 other Comm. 20 lc14233.png 14233.png out14233.txt
21 USNO-A2.0 1500-08619438 21 58 32.64, +61 07 45.0 SR 13.93 14.16 93.9 2456580.5 max Comm. 21 lc25316.png 25316.png out25316.txt
22 USN0-A2.0 1425-12620885 21 59 16.80, +59 41 56.6 LB 12.85 13.09 other Comm. 22 lc15580.png 15580.png out15580.txt
23 USN0-B1.0 1500-0325085 22 00 13.07, +60 05 57.7 LB 15.20 15.44 other Comm. 23 lc23982.png 23982.png out23982.txt
24 USN0-A2.0 1500-08654458 22 00 18.42, +60 06 58.3 BY 14.14 14.33 5.2732 2456580.072 max Comm. 24 lc24152.png 24152.png out24152.txt
25 USN0-A2.0 1500-08657577 22 00 27.27, +60 07 43.4 GDOR 12.80 12.86 0.52585 2456561.402 min lc24340.png 24340.png out24340.txt
26 USN0-B1.0 1497-0331994 22 00 44.57, +59 44 59.7 BY 15.01 15.28 16.24 2456195.0 max lc16638.png 16638.png out16638.txt
27 USN0-B1.0 1501-0325418 22 01 43.03, +60 10 48.0 EW 12.69 12.73 0.34288 2456580.200 min Comm. 27 lc25071.png 25071.png out25071.txt
28 USN0-A2.0 1425-12680661 22 01 46.77, +59 45 32.8 EB 12.76 12.84 0.526879: 2456227.127 max lc16587.png 16587.png out16587.txt
29 USN0-A2.0 1500-08700993 22 02 29.15, +61 02 05.1 DSCT 14.22 14.36 0.079433 2456228.084 max lc27603.png 27603.png out27603.txt
30 USN0-A2.0 1500-08701154 22 02 29.61, +60 56 50.6 LB 12.60 12.70 other Comm. 30 lc29263.png 29263.png out29263.txt
31 USN0-A2.0 1500-08707975 22 02 48.04, +60 08 02.2 EA 12.72 <12.95 4.1630 2456561.378 min Comm. 31 lc24250.png 24250.png out24250.txt
32 USN0-A2.0 1425-12715014 22 03 03.19, +59 48 21.3 L 12.89 13.10 other Comm. 32 lc17467.png 17467.png out17467.txt
33 USN0-A2.0 1500-08718856 22 03 17.38, +60 56 59.5 SR 12.83 13.21 153 2456528 max Comm. 33 lc29308.png 29308.png out29308.txt
34 USN0-A2.0 1425-12734318 22 03 43.14, +59 45 11.1 LB 11.91 12.38 other Comm. 34 lc16077.png 16077.png out16077.txt
35 USN0-A2.0 1425-12744434 22 04 04.37, +59 48 33.4 LB 13.01 13.28 other Comm. 35 lc17451.png 17451.png out17451.txt
36 USN0-A2.0 1500-08743076 22 04 26.46, +61 04 18.2 LB 12.93 13.05 other Comm. 36 lc27015.png 27015.png out27015.txt
37 USN0-A2.0 1500-08744628 22 04 31.01, +60 03 53.8 EA 14.71 14.98 2.25861 2456530.689 min Comm. 37 lc22857.png 22857.png out22857.txt
38 USN0-A2.0 1425-12770176 22 04 57.41, +59 52 10.1 LB 14.16 14.62 other Comm. 38 lc18674.png 18674.png out18674.txt
39 USN0-A2.0 1425-12776700 22 05 10.60, +59 51 52.0 LB 12.16 12.39 other Comm. 39 lc18418.png 18418.png out18418.txt
40 USN0-A2.0 1500-08778715 22 06 08.78, +60 12 04.1 EB 12.18 12.43 0.55317 2456560.205 min Comm. 40 lc25195.png 25195.png out25195.txt
41 USN0-A2.0 1500-08782278 22 06 19.19, +61 00 54.2 LB 14.19 14.39 other Comm. 41 lc28263.png 28263.png out28263.txt
42 USN0-A2.0 1425-12816829 22 06 33.43, +59 45 37.5 EA 13.92 14.12 3.8724 2456554.285 min Comm. 42 lc16179.png 16179.png out16179.txt
43 USN0-A2.0 1425-12838727 22 07 20.41, +59 43 15.5 EA 14.55 14.95 2.05577 2456580.705 min Comm. 43 lc15382.png 15382.png out15382.txt
44 USN0-A2.0 1425-12869458 22 08 22.34, +59 46 48.6 EA 15.30 16.53 2.8667 2456198.716 min Comm. 44 lc16680.png 16680.png out16680.txt
45 USN0-A2.0 1425-12884060 22 08 51.57, +59 55 35.6 LB 13.34 13.63 other Comm. 45 lc19601.png 19601.png out19601.txt
46 USN0-A2.0 1425-12891957 22 09 07.50, +59 51 43.9 SR 13.66 13.90 58.8: 2456227.029 max Comm. 46 lc18235.png 18235.png out18235.txt
Comments:
1. MinII = 14m.05.
3. MinII = 13m22.
4. J = 9m.723, H = 8m569, K = 8m. 104 (2MASS).
5. M-m = 0.17 P.
6. MinII = 15m22.
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 = 6m093 (2MASS).
The star in the NSVS database: NSVS ID 3428607. The NSVS data confirm the star's type.
35. J = 8m689, H = 7m268, K = 6m644 (2MASS).
36. J = 8m.562, H = 7m.407, K = 6m966 (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 = 12m668 (2MASS). The star is not identical to its nearest neighbor Mis V1308.
39. J = 7m.511, H = 6m.412, K = 6m015 (2MASS).
40. MinII = 12m30.
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 = 7m7 (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 ^m). 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 USN0-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 (Wozniak 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, USN0-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 Wozniak, P. R., Vestrand, W. T., Akerlof, C. W., et al., 2004, Astron. J., 127, 2436
