Near-Contact Binaries of the

Northern Sky Variability Survey

In our analysis of ROTSE data, we have identified 248 new variable stars of the Near-Contact Binary type. Using various Fortran programs, we were able to identify the period and epoch as well as many other identifying characteristics of the stars. We cross referenced our data with that of databases such as SIMBAD, ASAS, and SDSS. All this information and more is collected below. In our studies, we also came across 14 NCB stars that have two or more NSVS light curves. These stars are placed in the same cells on top of each other for your viewing pleasure. We have also provided links to the light curves for every star.

from www.physics.lsa.umich.edu\

The star names themselves are also links to the NSVS database with all the data for each specific star. We hope you find this site helpful in your scientific studies, enjoy! NOTE ADDED JULY 2007: We have discovered aprroximately 100 more NCBs with lower amplitudes which will be added to this list in the near future. J.S.Shaw and David Hou Physics and Astronomy Department University of Georgia

Star Name	LC	RA (2000)	DEC (2000)	Magnitude	points	epoch	Period	Symmetry	comments	Cross ID
NSVS****	link	hms	dms			HJD 2451000+	days
NSVS00103152	LC	09 05 52.60	+82 03 44.4	13.3934	187	419.956238	0.52838555
NSVS00170046	LC	22 53 04.54	+72 29 35.4	10.248	250	282.243317	0.8687999	asm +0.02		GSC 04485-01216
NSVS00207922	LC	00 21 37.75	+72 42 24.9	12.2265	171	322.171692	0.64835836	asm -0.01
NSVS00209240	LC	00 22 59.44	+71 15 35.0	12.704	176	321.861542	0.75374134
NSVS00252231	LC	00 29 14.19	+82 09 54.3	12.3807	237	282.334076	0.48122
NSVS00301836	LC	00 37 06.99	+76 50 06.8	13.8667	220	339.786316	0.61752138	asm -0.02
NSVS00349697	LC	01 27 00.32	+70 07 38.2	12.421	310	339.638519	0.75913471
NSVS00381029	LC	02 34 31.33	+72 30 41.5	13.7806	129	343.278046	0.38386117
NSVS00396923 NSVS00498039	LC LC	03 15 06.47	+70 35 20.9	12.6634	153	343.011932	0.99258592
NSVS00427786	LC	03 30 03.15	+81 35 49.0	13.088	283	339.829376	0.73066081	asm -0.02
NSVS00438082	LC	03 43 22.84	+76 39 34.8	12.8172	323	347.782532	0.75417487	asm -0.04
NSVS00461646	LC	02 47 04.14	+75 59 50.1	13.2836	174	382.073761	0.72752572	asm -0.03
NSVS00470320	LC	03 00 59.53	+78 34 48.3	11.7005	215	382.297577	0.50795113	asm -0.05
NSVS00470403	LC	02 27 28.82	+81 10 04.0	12.7691	94	396.934998	0.47284159			V* V358 Cep
NSVS00474027	LC	03 18 09.49	+78 35 48.4	12.9393	208	382.036072	0.44414034
NSVS00498039	LC	03 15 06.55	+04 42 21.3	12.7575	233	382.279388	0.99238246		spot
NSVS00580289	LC	05 19 47.10	+77 36 13.6	13.7818	301	396.798279	0.61521068
NSVS00594342	LC	06 54 01.59	+80 21 25.8	13.1121	331	397.261658