2001AN....322..333R

Query : 2001AN....322..333R

2001AN....322..333R - Astron. Nachr., 322, 333-342 (2001/December-0)

The Catania automatic photoelectric telescope on Mt. Etna: a systematic study of magnetically active stars.

RODONO M., CUTISPOTO G., LANZA A.F. and MESSINA S.

Abstract (from CDS):

A photometric monitoring of about 50 magnetically active stars, that are spread almost all over the H-R diagram, was initiated at the mountain station of Catania Observatory on Mt. Etna (1750-m a.s.l.) in 1992 with an 80-cm robotic telescope (APT-80) built by AutoScope Co. (USA). This systematic survey is now approaching its 10th year anniversary. For most of the stars, quite well defined solar-like spot maps have been derived from UBV data obtained in different epochs. These data have allowed us to investigate some relevant characteristics of spot activity and variability on stars, and to obtain clear evidence of long-term activity cycles, in the range from a few to about 10 years, on some of the observed targets. Starspot maps are constructed by using advanced tools, such as massive parallel computing and are based on Maximum Entropy and Tikhonov regularization criteria. Selected results are here presented. Our systematic observation program is still underway and a second APT80/2, equipped with a CCD camera, will pair the APT80/1 on the same site. Its operation is foreseen for mid 2002.

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Journal keyword(s):

Simbad objects: 63

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Number of rows : 63
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* LN Peg RS* 00 12 30.2951225569 +14 33 48.897713959   9.40   8.0   G8V+K5V 111 0
2 V* BI Cet RS* 01 22 50.2948434816 +00 42 43.397347032   9.01 8.162 7.8 7.302 G5V 119 0
3 HD 8357 XB* 01 22 56.7568636416 +07 25 09.332224320 8.530 8.160   6.8   G5 181 0
4 V* BG Psc RS* 01 37 08.8402135080 +20 42 00.459061200   9.38 8.69     G5 35 0
5 V* XX Tri RS* 02 03 47.1141597864 +35 35 28.665702672   9.52 8.42     K0III 137 0
6 BD-00 431 RS* 02 47 26.9130062184 -00 12 22.464084672   10.440 9.681 9.813 8.614 G5 50 0
7 V* UX Ari RS* 03 26 35.3756804760 +28 42 54.226408428 7.76 7.28 6.37     K0IV 726 0
8 HD 21845 PM* 03 33 13.4905810704 +46 15 26.546978484   8.963 8.250 7.8 7.34 K2 104 0
9 HD 22468 RS* 03 36 47.2904292073 +00 35 15.943692002 7.09 6.79 5.90     K2:Vnk 1206 0
10 HD 22403 PM* 03 37 11.0381580962 +25 59 27.954176922       6.9   G4 128 0
11 V* V471 Tau SB* 03 50 24.9666549840 +17 14 47.430910716   10.258 9.373   8.393 K2V+DA 697 0
12 V* EI Eri RS* 04 09 40.8923562192 -07 53 34.175993568   7.71 7.04     G3V 298 0
13 HD 283750 BY* 04 36 48.2421502608 +27 07 55.888214520   9.19 8.10 7.4   K2.5Ve 289 0
14 * 63 Eri SB* 04 59 50.4534782856 -10 15 47.916588204   6.180 5.390     G4IV-V+DA 118 1
15 HD 37394 BY* 05 41 20.3356800431 +53 28 51.808818686 7.58 7.07 6.23 5.54 5.11 K0V 365 0
16 V* V1149 Ori RS* 05 41 26.7877889088 +03 46 40.934823384   7.96 6.82     K0III 94 0
17 V* CQ Aur RS* 06 03 53.6474105928 +31 19 41.199100464   9.86 8.99     G0III: 111 0
18 V* V369 Gem RS* 07 02 23.3214968520 +25 50 45.558373812   8.73 7.987   7.174 G5 25 0
19 * sig Gem RS* 07 43 18.7276907303 +28 53 00.631838445 6.38 5.41 4.29 3.37 2.79 K1IIIe 499 0
20 * 54 Cam RS* 08 02 35.7833395368 +57 16 25.055079888   7.11 6.49     F9IV+G5IV 182 0
21 V* DH Leo RS* 10 00 01.7108047320 +24 33 10.079801604   9.47 7.982 7.3 6.898 K0Vk 164 0
22 V* AD Leo PM* 10 19 36.2808181226 +19 52 12.010446571   10.82 9.52 9.19   dM3 1469 1
23 V* DM UMa RS* 10 55 43.5438405648 +60 28 09.721480656   10.31 9.29     K0III-IV 176 0
24 V* HU Vir RS* 12 13 20.6914862928 -09 04 46.880926320   9.69 8.71   7.639 K1V 154 0
25 V* DK Dra RS* 12 15 41.4909161616 +72 33 04.308176484   7.43 6.29     K0+IIICH-1 180 0
26 HD 107146 PM* 12 19 06.5018840304 +16 32 53.867731128   7.61   6.7   G2V 307 0
27 V* IL Com RS* 12 25 02.2563809088 +25 33 38.383306020   8.63 8.14     F8 161 0
28 PN LoTr 5 PN 12 55 33.7471108416 +25 53 30.559286040   9.72 8.88     G5III-IV 223 0
29 V* RS CVn RS* 13 10 36.9077924448 +35 56 05.584994412 8.57 8.51 7.93 7.7   F6IV+G8IV 753 0
30 V* BM CVn RS* 13 21 32.2615350168 +38 52 49.518935904   8.56 7.36     K2III 91 0
31 V* IN Vir RS* 13 24 24.1561749744 -02 18 54.937707948   10.33 9.131   7.900 K2III 73 0
32 V* FK Com PM* 13 30 46.7996390256 +24 13 57.781233768   9.04 8.245   7.204 G4III 384 1
33 V* CQ UMa a2* 13 40 21.3848060304 +57 12 27.374885568   6.380 6.273     A2IVpSrCr 124 0
34 HD 134319 BY* 15 05 49.9038303360 +64 02 49.941702888   9.05 8.41 8.0   G5V: 148 0
35 V* UV CrB SB* 15 22 25.3263055704 +25 37 26.926262328   8.53 7.26     K1III 78 0
36 V* AL CrB V* 15 58 30.4666965264 +26 51 11.194460604   9.36 8.53     G8III 17 0
37 V* MS Ser BY* 15 58 43.9452509832 +25 34 10.427623284   9.21 8.347   7.201 G/K:e 110 0
38 V* EV Dra RS* 16 01 47.4594340968 +51 20 52.051615908   9.31 8.59     G5 56 0
39 HD 150708A RS* 16 39 03.9794437032 +60 41 58.778276820   9.34 8.61     G5Vn 201 0
40 * 29 Dra RS* 17 32 41.2152041592 +74 13 38.490729348   7.691 6.627     K0+DA1.5 167 0
41 V* MM Her RS* 17 58 38.5191368904 +22 08 46.780356588   9.24 9.563 8.01 8.574 G0 141 0
42 HD 166181 SB* 18 08 16.0497803784 +29 41 28.261731012   8.42 7.70     G5 151 0
43 V* LP Dra RS* 18 09 55.4986110768 +69 40 49.792233036       8.0   K2V 55 0
44 HD 234601 BY* 18 16 24.7671104760 +50 14 16.343063124   9.57 8.92     G5 16 0
45 HD 170527 RG* 18 25 10.1138252544 +64 50 18.307185756   7.86 6.86     K0 45 0
46 V* BY Dra BY* 18 33 55.7720712062 +51 43 08.897780286 10.22 9.23   8.733   K4Ve+K7.5Ve 639 0
47 V* V889 Her BY* 18 34 20.1028767504 +18 41 24.234675864   8.00 7.449   6.720 G2V 151 0
48 HD 175742 RS* 18 55 53.2250061997 +23 33 23.932761771 9.524 8.941 8.019 7.483 6.958 K0V 202 0
49 V* V511 Lyr RS* 19 06 21.3089168568 +27 42 47.825228124       8.4   K0 36 0
50 HD 179094 SB* 19 08 25.7885833200 +52 25 32.631746052   6.982 5.893     K1IIIe 207 1
51 V* V1817 Cyg RS* 19 31 13.5541126104 +55 43 54.606543600   7.489 6.369     K2II-III+A0V 154 0
52 HD 199178 Ro* 20 53 53.6520433056 +44 23 11.080108284   8.01 7.22     G5III-IV 222 1
53 HD 200391 Ae* 21 02 25.9070119848 +27 48 26.444060604   7.93 7.374   6.624 G0V+G5V 366 0
54 V* HK Lac RS* 22 04 56.6083608840 +47 14 04.479131004   8.01 6.96     K0III 250 0
55 V* AR Lac RS* 22 08 40.8182089680 +45 44 32.107863120 7.09 6.83 6.11     K0IVe+G5IV 745 0
56 V* V383 Lac BY* 22 20 07.0254050808 +49 30 11.767337496   9.42 8.58     K1V 85 0
57 V* EV Lac PM* 22 46 49.7312610268 +44 20 02.374381562   11.85 10.26 9.89   M4.0Ve 993 2
58 V* IM Peg RS* 22 53 02.2663977960 +16 50 28.300547040   7.024 5.890     K2III 357 1
59 V* KZ And BY* 23 09 57.3641359080 +47 57 30.045063744   8.841 7.912     K2-Ve 137 0
60 V* SZ Psc RS* 23 13 23.7784875720 +02 40 31.602660924   8.19 7.44   6.390 G5Vp 333 1
61 V* V395 Peg RS* 23 20 23.1508674672 +16 47 23.420451516   11.72 11.04     G5 9 0
62 * lam And RS* 23 37 33.8427800830 +46 27 29.344721109 5.54 4.84 3.82 3.04 2.47 G8IVk 693 0
63 HD 224085 RS* 23 55 04.0520383542 +28 38 01.245426862 8.88 8.20   6.9   K2+IVeFe-1 756 0

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