J/A+AS/125/11 UBV & V(RI)c photometry of 23 active stars (Strassmeier+ 1997)
Starspot photometry with robotic telescopes.
Continuous UBV and V(RI)c photometry of 23 stars in 1991-1996
Strassmeier K.G., Bartus J., Cutispoto G., Rodono M.
<Astron. Astrophys. Suppl. Ser. 125, 11 (1997)>
=1997A&AS..125...11S 1997A&AS..125...11S (SIMBAD/NED BibCode)
ADC_Keywords: Photometry, UBV ; Photometry, VRI
Keywords: stars: activity - stars: late-type - stars: rotation -
binaries: spectroscopic - techniques: photometric
Description:
We report on the progress of our ongoing photometric monitoring
program of spotted late-type stars with automatic photoelectric
telescopes (APTs) on Mt. Hopkins in Arizona and on Mt. Etna in Sicily.
We present 9250 differential UBV and/or V(RI)c observations for
altogether 23 chromospherically active stars, singles and binaries,
pre-main-sequence and post-main-sequence, taken between 1991 and 1996.
For a description of the UBV and (RI)c photometric system, see e.g.
GCPD/01 and GCPD/54
Objects:
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RA (2000) DE Designation(s)
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02 03 47.2 +35 35 29 HD 12545
02 48 42.8 +31 07 03 VY Ari = HD 17433
04 09 40.6 -07 53 39 EI Eri = HD 26337
04 18 29 +28 28.0 V410 Tau = HD 283518
04 36 47.3 +27 08 04 V833 Tau = HD 283750
04 55 59.3 +30 34 03 SU Aur = HD 282624
04 58 17.4 +00 27 16 HD 31738
05 00 08.1 +03 17 13 HD 31993
05 52 16.0 -28 39 24 HD 39576
09 24 49.0 -23 49 33 IL Hya = HD 81410
09 32 26.3 -11 11 06 LQ Hya = HD 82558
09 32 44.2 +26 59 31 HD 82443
12 13 20.7 -09 04 46 HD 106225
12 51 41.9 +27 32 27 31 Com = HD 111812
12 55 33.8 +25 53 30 IN Com = HD 112313
13 06 25.9 -04 50 44 HD 113816
13 24 23.9 -02 18 48 IN Vir = HD 116544
13 30 46.9 +24 13 59 FK Com = HD 117555
14 39 01.1 +64 17 33 HD 129333
15 32 22.8 -08 32 04 UZ Lib = BD-08 3999
20 29 36.8 -21 07 35 HD 195040
21 14 31.1 -30 45 25 HD 202077
22 53 02.2 +16 50 29 IM Peg = HD 216489
22 54 35.5 +16 56 31 HR 8714 = HD 216672
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
cata1 51 48 Catania APT UBV photometry
ei_eri.ph 51 217 Phoenix APT UBV photometry when operated under
Vienna budget
cata2 50 666 *APT differential UBV photometry
phoenix 71 1576 *Phoenix APT UBV photometry
vienna 72 6664 Vienna T7 APT V(RI)c differential photometry
hr8714.t7 48 208 Vienna T7 APT V(RI)c photometry
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Note on cata2: All data were obtained with Catania APT except for HD 106225
which were obtained with Phoenix APT when operated under Catania budget.
Note on phoenix: All data were obtained when operated under Vienna budget
except for EI Eri, which were obtained when operated under Catania budget.
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See also:
V/76 : Chromospherically Active Binaries (Strassmeier+ 1993)
Byte-by-byte Description of file: cata1 ei_eri.ph
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 23 F13.5 d HJD Heliocentric Julian day
24- 28 F5.4 --- Phase [0/1[ Phase
31- 35 F5.3 mag Vmag V magnitude
38- 43 F6.3 mag U-B ?=99.99 U-B color index
46- 51 F6.3 mag B-V ?=99.99 B-V color index
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Byte-by-byte Description of file: cata2
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 23 F13.5 d HJD Heliocentric Julian day
24- 28 F5.4 --- Phase [0/1[ Phase
30- 35 F6.3 mag dUmag ?=99.99 Differential U magnitude
37- 42 F6.3 mag dBmag ?=99.99 Differential B magnitude
45- 50 F6.3 mag dVmag ?=99.99 Differential V magnitude
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Byte-by-byte Description of file: phoenix
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 23 F13.5 d HJD Heliocentric Julian day
25- 31 F7.4 mag dUmag ?=99.999 Differential U magnitude
33- 39 F7.4 mag dBmag ?=99.999 Differential B magnitude
41- 47 F7.4 mag dVmag ?=99.999 Differential V magnitude
49- 55 F7.4 mag e_dUmag ?=99.999 rms uncertainty on dUmag
57- 63 F7.4 mag e_dBmag ?=99.999 rms uncertainty on dBmag
65- 71 F7.4 mag e_dVmag ?=99.999 rms uncertainty on dVmag
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Byte-by-byte Description of file: vienna
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 23 F13.5 --- d HJD Heliocentric Julian day
25- 31 F7.4 mag dVmag Differential V magnitude
33- 39 F7.4 mag dRc Differential Cousins R magnitude
41- 48 F8.4 mag dIc Differential Cousins I magnitude
50- 56 F7.4 mag e_dVmag rms uncertainty on dVmag
58- 64 F7.4 mag e_dRc rms uncertainty on dV-R
66- 72 F7.4 mag e_dIc rms uncertainty on dR-I
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Byte-by-byte Description of file: hr8714.t7
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 23 F13.5 --- d HJD Heliocentric Julian day
25- 31 F7.4 mag Vmag V magnitude
33- 39 F7.4 mag V-Ic V-Ic colour index
41- 48 F8.4 mag V-Rc V-Rc colour index
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Acknowledgements: Klaus G. Strassmeier
(End) Patricia Bauer [CDS] 10-Jan-1997