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16"Peremennye Zvezdy", Prilozhenie, vol. 18, N 2 (2018)
New Variable Stars in Cepheus: Area of 2°.3x2°.3, Centered at a=22h00m, 5=60°00' (2000.0). Part III
E. G. Lapukhin#1, S. A. Veselkov#1, A. M. Zuhareva#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)
# Name Other Coord (J2000) Typ-e Max Min Svstem Period Epoch (JD) type Sp_ Comment L.Curve Find.Chart Data
1 USN0-B1.0 1506-0313459 21 50 43.19, +60 37 22.3 SR 14.9 15.4 102 2456560.189 max Comm. 1 lc39523.png 39523.png out39523.txt
2 USN0-A2.0 1500-08466252 21 50 45.18, +60 47 39.5 EA 15.8 16.4 1.14635 2456624.511 min Comm. 2 lc36278.png 36278.png out36278.txt
3 USN0-A2.0 1500-08481409 21 51 33.65, +60 29 44.2 EW 15.4 16.2 0.31958 2456205.153 min Comm. 3 lc41600.png 41600.png out41600.txt
4 USN0-A2.0 1500-08484277 21 51 42.70, +61 04 29.2 HADS: 14.9 15.3 0.202219 2456529.237 max lc75422.png 75422.png out75422.txt
5 USN0-A2.0 1500-08500194 21 52 33.47, +60 48 03.4 EW 15.5 15.9 0.28848 2456624.257 min Comm. 5 lc36471.png 36471.png out36471.txt
6 USN0-A2.0 1500-08504197 21 52 45.40, +60 10 12.3 EW 15.8 16.4 0.42372 2456529.218 min Comm. 6 lc34013.png 34013.png out34013.txt
7 USN0-A2.0 1500-08506374 21 52 51.99, +60 31 22.1 EA 15.17 15.40 0.76162 2456567.028 min Comm. 7 lc41373.png 41373.png out41373.txt
8 USN0-A2.0 1500-08506519 21 52 52.44, +60 11 40.4 EW 14.55 15.12 0.38528 2456624.071 min Comm. 8 lc33294.png 33294.png out33294.txt
9 USN0-A2.0 1500-08517859 21 53 26.59, +60 14 33.3 EW 15.00 15.35 0.32509 2456567.144 min Comm. 9 lc32487.png 32487.png out32487.txt
10 USN0-A2.0 1500-08523776 21 53 44.66, +60 30 33.6 EW 14.6 14.7 0.26386 2456560.134 min Comm. 10 lc41569.png 41569.png out41569.txt
11 USN0-A2.0 1500-08537437 21 54 26.08, +60 13 20.3 SR 13.7 14.15 112: 2456539 max Comm. 11 lc33141.png 33141.png out33141.txt
12 USN0-A2.0 1500-08551829 21 55 09.86, +60 43 51.8 SR 13.65 13.75 37.4 2456560.281 max Comm. 12 lc38246.png 38246.png out38246.txt
13 USN0-A2.0 1500-08554865 21 55 19.03, +60 10 46.4 LB 12.40 12.62 other Comm. 13 lc34235.png 34235.png out34235.txt
14 USN0-A2.0 1500-08566615 21 55 53.90, +60 26 41.9 EW 16.0 16.8 0.33179 2456205.142 min Comm. 14 lc42595.png 42595.png out42595.txt
15 USN0-A2.0 1500-08585233 21 56 50.52, +60 52 14.4 EA 15.60 16.45 0.77224 2456624.188 min Comm. 15 lc35889.png 35889.png out35889.txt
16 USN0-B1.0 1505-0319747 21 56 55.26, +60 34 14.8 SR: 13.65 13.8 61.4 2456560 max Comm. 16 lc41116.png 41116.png out41116.txt
17 USN0-A2.0 1500-08598056 21 57 28.94, +60 30 06.3 EA 12.69 12.77 3.1079 2456529.919 min Comm. 17 lc42113.png 42113.png out42113.txt
18 USN0-A2.0 1500-08599961 21 57 34.69, +60 54 10.2 EW 15.00 15.25 0.378389 2456567.285 min Comm. 18 lc35588.png 35588.png out35588.txt
19 USN0-A2.0 1500-08606041 21 57 53.28, +60 17 07.3 SR 12.75 13.0 95.1 2456554 max Comm. 19 lc32327.png 32327.png out32327.txt
20 USN0-A2.0 1500-08632491 21 59 12.26, +60 46 35.8 EA 14.36 14.74 1.7708: 2456545.614 min Comm. 20 lc37865.png 37865.png out37865.txt
21 USNO-A2.0 1500-08634712 21 59 19.15, +60 26 30.1 EW 113.34 13.581 f0.440056 2456560.120 |~min| Comm. 21 lc43187.png 43187.png out43187.txt
22 USNO-A2.0 1500-08646368 21 59 54.58, +60 49 01.5 SR: 14.15 14.25 52.8 2476222 max Comm. 22 lc37300.png 37300.png out37300.txt
23 USNO-A2.0 1500-08655368 22 00 21.17, +60 33 42.1 RRC: 13.75 13.90 0.29480 2456580.101 max Comm. 23 lc41508.png 41508.png out41508.txt
24 USNO-A2.0 1500-08656485 22 00 24.31, +60 12 51.9 RR: 12.96 13.02 0.58960 2456545.109 max lc34126.png 34126.png out34126.txt
25 USNO-A2.0 1500-08659415 22 00 32.60, +60 37 23.6 LB 13.35 13.6 other Comm. 25 lc40624.png 40624.png out40624.txt
26 USNO-A2.0 1500-08673720 22 01 13.80, +60 31 21.4 LB 12.32 12.42 other Comm. 26 lc42189.png 42189.png out42189.txt
27 USNO-A2.0 1500-08678703 22 01 27.73, +60 22 26.8 EW 12.61 12.78 0.64925 2456560.037 min Comm. 27 lc44279.png 44279.png out44279.txt
28 USNO-A2.0 1500-08684725 22 01 44.63, +60 21 40.6 LB 12.45 12.75 other Comm. 28 lc31094.png 31094.png out31094.txt
29 USNO-A2.0 1500-08689801 22 01 58.45, +60 50 08.4 SR 12.75 12.85 59.6 2456203 max Comm. 29 lc37097.png 37097.png out37097.txt
30 USNO-A2.0 1500-08702048 22 02 32.16, +60 41 12.0 BY 15.0 15.2 2.2619 2456560.521 max lc39548.png 39548.png out39548.txt
31 USNO-A2.0 1500-08702550 22 02 33.50, +60 31 33.1 SR 15.0 15.7 80.6 2456560 max Comm. 31 lc42200.png 42200.png out42200.txt
32 USNO-A2.0 1500-08704006 22 02 37.41, +60 11 44.3 EA 12.81 12.88 1.61896 2456182.558 min Comm. 32 lc34804.png 34804.png out34804.txt
33 USNO-B1.0 1508-0317946 22 03 18.47, +60 48 06.4 LB 12.63 12.80 other Comm. 33 lc37676.png 37676.png out37676.txt
34 USNO-A2.0 1500-08725291 22 03 35.38, +60 44 51.4 EA 14.32 14.48 3.012 2456528.261 min Comm. 34 lc38600.png 38600.png out38600.txt
35 USNO-A2.0 1500-08739544 22 04 16.37, +60 34 54.1 DSCT 14.4 14.5 0.171729 2456197.108 max lc41591.png 41591.png out41591.txt
36 USNO-A2.0 1500-08757980 22 05 10.16, +61 10 18.2 LB 13.3 13.6 other Comm. 36 lc73804.png 73804.png out73804.txt
37 USNO-A2.0 1500-08768036 22 05 38.65, +60 43 34.3 EW 15.7 16.1 0.75043 2456553.904 min Comm. 37 lc39213.png 39213.png out39213.txt
38 USNO-A2.0 1500-08773290 22 05 53.33, +60 14 35.7 BCEP: 13.90 13.96 0.39941 2456205.283 max lc33983.png 33983.png out33983.txt
39 USNO-A2.0 1500-08782168 22 06 18.88, +60 50 51.5 EB 15.2 15.7 1.11979 2456218.958 min Comm. 39 lc37133.png 37133.png out37133.txt
40 USNO-A2.0 1500-08789594 22 06 40.69, +60 14 14.8 LB 12.6 12.8 other Comm. 40 lc34199.png 34199.png out34199.txt
41 USNO-B1.0 1504-0330073 22 06 42.08, +60 24 59.4 EA 12.73 12.90 3.537:: 2456227.208 min Comm. 41 lc30708.png 30708.png out30708.txt
42 USNO-A2.0 1500-08799669 22 07 10.64, +60 45 21.0 EA 15.55 16.0 1.12795 2456227.124 min Comm. 42 lc33551.png 33551.png out33551.txt
43 USNO-A2.0 1500-08813506 22 07 51.68, +60 29 10.5 EW 12.84 13.04 0.697580 2456529.202 min Comm. 43 lc30127.png 30127.png out30127.txt
44 USNO-A2.0 1500-08826537 22 08 30.71, +60 56 12.0 BY: 14.9 15.1 2.0849 2456201.313 max lc35250.png 35250.png out35250.txt
45 USNO-A2.0 1500-08832105 22 08 48.40, +60 57 03.1 EW 12.91 13.30 0.2615125 2456197.316 min Comm. 45 lc35138.png 35138.png out35138.txt
46 USNO-A2.0 1500-08837677 22 09 06.23, +60 46 27.7 HADS 13.07 13.25 0.1623231 2456528.240 max lc58787.png 58787.png out58787.txt
Comments:
1. J = 10m. 14, H = 8m.909, K = 8m.442 (2MASS).
2. MinII = 16m 2.
3. MinII = 16m04. 5. MinII = 15m.8.
6. MinII = 16m.4.
7. MinII = 15m23.
8. MinII = 15m02.
9. MinII = 15m.35.
10. MinII = 14m.67.
11. J = 10m083, H = 8m953, K = 8m.559 (2MASS).
12. J = 9m093, H = 7m822, K = 7m316 (2MASS).
13. J = 8m062, 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 = 15m71.
16. J = 9m423, H = 8m079, K = 7m578 (2MASS).
17. MinII = 12m76:.
18. MinII = 15m25.
19. J = 7m618, H = 6m.42, K = 5m886 (2MASS).
20. Our observations covered one minimum only, therefore period is defined approximately.
21. MinII = 13m53.
22. J = 10m202, H = 9m.04, K = 8m604 (2MASS).
23. The star is possibly multiperiodic.
25. J = 8m323, H = 7m174, K = 6m643 (2MASS).
26. J = 7m625, H = 6m537, K = 6m 122 (2MASS).
The star in the NSVS database: NSVS ID 3381168. The NSVS data confirm the star's type.
27. MinII = 12m77.
28. J = 7m915, H = 6m722, K = 6m188 (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 = 9m61 (2MASS).
32. MinII = 12m85. D = 0.09 P.
33. J = 8m.242, H = 7m097, K = 6m.712 (2MASS).
34. The period of 5d021 is possible.
36. J = 8m567, H = 7m.315, K = 6m855 (2MASS).
The star in the NSVS database: NSVS ID 3384383. The NSVS data confirm the star's type.
37. MinII = 16m1.
39. MinII = 15m35.
40. J = 7m846, H = 6m719, K = 6m293 (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 = 15m65:. D = 0.16 P.
43. MinII = 13m00. O'Connell effect. 45. MinII = 13m29. Remarks:
The final - third - part of our discoveries of new variables in Cepheus on area of 2°.3x2°.3, centered at a=22h00m, 8=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 (3056x3056 pixels, pixel size 12 ^m). 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°.3x2°.3. The magnitudes were referred to red magnitudes of comparison stars from the USN0-A2.0 and USN0-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 (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
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 Wozniak, P.R., Vestrand, W.T., Akerlof, C.W., et al., 2004, Astron. J., 127 , 2436
