2003A&A...400..659C


Query : 2003A&A...400..659C

2003A&A...400..659C - Astronomy and Astrophysics, volume 400, 659-670 (2003/3-3)

Long-term monitoring of active stars. X. Photometry collected in 1994.

CUTISPOTO G., MESSINA S. and RODONO M.

Abstract (from CDS):

As part of an extensive program focused on the global properties and evolution of active stars, high-precision UBV(RI)c and UBV photometry of 18 selected stars is presented. UBV(RI)c observations were collected at the European Southern Observatory over the intervals 21-28 September 1994 and 25 November-05 December 1994. Additional UBV photometry obtained late in 1994 by Catania Astrophysical Observatory Automatic Photoelectric Telescope is also presented. Significant evolution of the light curves, period variations and evidence for long-term variability of the global degree of spottedness are found. Some spectral classifications are revised and photometric parallaxes are compared, whenever possible, with the values measured by the Hipparcos satellite. These observations are finalized to the construction of an extended photometric database, which can give important clues on topics such as the stability of spotted areas, differential stellar rotation, solar-like activity cycles and the correlation between inhomogeneities at different atmospheric levels.

Abstract Copyright:

Journal keyword(s): stars: activity - stars: late-type - stars: pre-main sequence - stars: variables: general - X-ray: stars

VizieR on-line data: <Available at CDS (J/A+A/400/659): position.dat table1.dat table3.dat table4.dat tables.tex ubvri.dat>

Simbad objects: 23

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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 UCAC2 27406173 * 00 22 38.4106435056 -12 11 07.301735268   13.32 12.57 12.51   ~ 3 0
2 * 9 Cet BY* 00 22 51.7884553555 -12 12 33.969921319 7.29 7.05 6.39     G2.5V 467 0
3 V* BZ Scl RS* 01 11 43.1691074664 -25 57 30.156005520   10.32 9.68 9.47 9.16 K0III+(G) 18 0
4 V* BC Phe RS* 01 22 18.9828131016 -56 43 53.210629740   9.63 8.920   8.070 G8III(e) 51 0
5 V* BI Cet RS* 01 22 50.2948434816 +00 42 43.397347032   9.01 8.162 7.8 7.302 G5V 108 0
6 HD 8405 * 01 23 14.4563650224 +00 34 33.548962440   10.14 9.18     G8/K0III 10 0
7 UCAC4 453-001814 * 01 23 14.5858263072 +00 34 15.977392860     11.7 12.310   ~ 2 0
8 V* BG Psc RS* 01 37 08.8402135080 +20 42 00.459061200   9.38 8.69     G5 31 0
9 V* CC Eri BY* 02 34 22.5661889568 -43 47 46.869120096 11.305 10.201 8.865 7.926 6.992 K7V 259 0
10 V* BY Cet RS* 02 47 26.9130062184 -00 12 22.464084672   10.37 9.597   8.614 G5 34 0
11 HD 18131 Ro* 02 54 38.8273538856 -05 19 50.946069432   8.32 7.31     K0IV+DA: 61 0
12 V* ES Eri RS* 03 18 03.8333177688 -19 44 14.272436616   11.61 10.63     K5V 23 0
13 V* YY Men Ro* 04 58 17.9369735112 -75 16 37.987856868   9.11 8.05     K1IIIp 123 0
14 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 977 0
15 V* UX Col RS* 05 28 56.518320 -33 28 15.46824   11.62 10.59 10.26 9.312 K3Ve 28 0
16 V* V1321 Ori Or* 05 35 04.3009445808 -05 08 12.737523192   11.94 10.538   9.117 K0III 98 0
17 V* V1355 Ori RS* 06 02 40.3603759560 -00 51 37.225252080   10.05 9.194   8.080 K0-2IV 39 0
18 V* HY CMa EB* 06 12 38.8091032992 -16 48 36.397207584   10.33 9.318   8.116 K0 24 0
19 V* V1358 Ori BY* 06 19 08.0574987312 -03 26 20.361237864   8.52 7.95     G0V 101 1
20 HD 175615 * 18 56 17.7463023212 -00 48 14.482211103   8.37 8.21     A3/5V 11 0
21 V* AU Mic LM* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1012 0
22 V* FL Aqr SB* 22 38 45.2812778993 -20 36 51.810236490   13.08 11.49 11.22 8.77 M3.5V 136 0
23 V* FK Aqr SB* 22 38 45.5746238605 -20 37 16.087447076 11.714 10.595 9.083 8.073 6.876 M0Vep 264 0

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2022.08.10-19:58:20

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