2021RAA....21..192I

Query : 2021RAA....21..192I

2021RAA....21..192I - Research in Astron. and astroph., 21, 192 (2021/August-0)

Long-term V (RI)c CCD photometry of pre-main-sequence stars in the association Cepheus OB3.

IBRYAMOV S., ZIDAROVA G., SEMKOV E. and PENEVA S.

Abstract (from CDS):

Results from optical CCD photometric observations of 13 pre-main-sequence stars collected during the period from February 2007 to November 2020 are presented. These stars are located in the association Cepheus OB3, in the field of the young star V733 Cephei. Photometric observations, especially concerning the long-term variability of the stars, are missing in the literature. We present the first long-term V(RI)c monitoring for them, that cover 13 years. Results from our study indicate that all of the investigated stars manifest strong photometric variability. The presented paper is a part of our program for the photometric study of pre-main-sequence stars located in active star-forming regions. *The photometric data will be available in electronic form via CDS VizieR Online Data Catalogue and by e-mail requested to S. Ibryamov at

Abstract Copyright: © 2021 National Astronomical Observatories

Journal keyword(s): stars: pre-main sequence - stars: variables: T Tauri - Herbig Ae/Be-techniques: photometric - methods: observational - data analysis - stars: individual

VizieR on-line data: <Available at CDS (J/other/RAA/21.192): stars.dat table1.dat-table13.dat>

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* UX Ori Ae* 05 04 29.9878898040 -03 47 14.286732072 10.25 10.93 8.70 9.62 9.43 A4IVe 379 1
2 ZTF J225155.45+621816.8 ** 22 51 55.47144 +62 18 17.0244           ~ 3 0
3 2MASS J22533129+6237114 Y*O 22 53 31.3070521344 +62 37 11.420226408     19.71   16.37 ~ 6 0
4 V* V733 Cep Or* 22 53 33.2578965000 +62 32 23.629387452     18.57   14.63 ~ 48 0
5 2MASS J22533430+6236307 Y*O 22 53 34.3188727632 +62 36 30.691174032     18.74   15.78 ~ 5 0
6 2MASS J22534450+6238305 Y*O 22 53 44.5133844336 +62 38 30.471316692     15.83   13.60 ~ 3 0
7 2MASS J22541742+6236221 Y*O 22 54 17.4255519408 +62 36 22.074227676     19.98   16.55 ~ 3 0
8 2MASS J22543612+6243047 Y*O 22 54 36.1319263680 +62 43 04.559522376     18.42   15.63 ~ 2 0
9 2MASS J22545815+6241327 Y*O 22 54 58.1422107216 +62 41 32.657469720 21.470 20.58 19.07   16.08 ~ 5 0
10 2MASS J22550051+6233485 Y*O 22 55 00.517 +62 33 48.57     16.92   14.81 ~ 2 0
11 [MO2001] 28 Y*O 22 55 05.8994854128 +62 34 50.373746364     16.35   13.94 ~ 5 0
12 2MASS J22551206+6228169 Y*O 22 55 12.0575836752 +62 28 16.776853572     19.50   16.48 ~ 4 0
13 2MASS J22551996+6218162 * 22 55 19.9489037472 +62 18 16.227700344   15.64 14.37     ~ 3 0
14 2MASS J22552178+6237535 Y*O 22 55 21.7825131312 +62 37 53.444752284 19.765   17.49   15.33 ~ 5 0
15 2MASS J22552445+6239137 Y*O 22 55 24.4582852776 +62 39 13.692962988     19.17   16.20 ~ 3 0
16 NAME III CEP ASSOC As* 23 04.2 +63 24           ~ 332 0

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