1999A&AS..136..531L


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.14CET09:55:55

1999A&AS..136..531L - Astron. Astrophys., Suppl. Ser., 136, 531-537 (1999/May-1)

Observations of radio stars at the Valinhos CCD Meridian Circle.

LOPES P.A.A., ANDREI A.H., PULIAEV S.P., PENNA J.L., TEIXEIRA R., BENEVIDES-SOARES P., ASSAFIN M., LE CAMPION J.-F. and REQUIEME Y.

Abstract (from CDS):

We present the astrometric results from the optical observation of 16 stars from the list of Wendker (1995), with detected or suspected radio emission. The results are given on the Hipparcos/Tycho reference frame. The stars are evenly distributed in right ascension and the declinations range from -15.6° to +28.6°. This distribution, also allowed to obtain positions relative to the Twin Astrographic Catalogue (TAC 1.0). The observations were carried out with the Valinhos CCD Meridian Circle, in Brazil, operating in drift scanning mode. The average positional precision is at 40 mas and generally below 2 mas/yr for proper motions, obtained with the new reductions of the Astrographic Catalogue - AC2000, as first epoch. In the strips taken from the observation of the 16 radio stars, 573 Tycho stars, 545 ACT stars and 566 TAC stars were found. The analysis of the independent reductions made relatively to those frames and the large number of common stars enables to focus on the equatorial zone, as represented by the three catalogues. As a result, the quality of Valinhos observations with regard to ACT and TAC internal accuracies is verified.

Abstract Copyright:

Journal keyword(s): astrometry - reference systems - radio stars

VizieR on-line data: <Available at CDS (J/A+AS/136/531): table1.dat tableref.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 - 2020
#notes
1 Cl Melotte 22 1538 * 03 47 43.1010783686 +24 16 55.494449127   12.55       F5 7 0
2 V* WY Cnc RS* 09 01 55.4509744645 +26 41 22.747100853 10.54 10.34 9.60     G5V 189 0
3 V* AL Leo Al* 09 58 12.9052400951 +18 17 28.149217405   10.26 9.89     F5 35 0
4 Wolf 358 BY* 10 50 52.0312400722 +06 48 29.263582377 14.532 13.319 11.675 10.459 8.889 M4V 218 0
5 Wolf 424 ** 12 33 17.361480 +09 01 15.79224 15.398 14.313 12.467 10.937 8.988 M5.5V 293 0
6 BD+13 2618 Fl* 13 00 46.5602816848 +12 22 32.716799085 12.314 11.233 9.750 8.785 7.653 M0V 294 1
7 V* UX Com RS* 13 01 33.0178454449 +28 37 54.177676774   10.86 10.01 8.15   B7+K0III 82 0
8 V* BH Vir RS* 13 58 24.8603932736 -01 39 38.953813515   10.29 9.68   9.047 F6/8V 185 0
9 BD-11 3759 BY* 14 34 16.8115600986 -12 31 10.417356933 14.041 12.915 11.317 10.093 8.473 M3.5V 151 0
10 V* UZ Lib SB* 15 32 23.2091329303 -08 32 00.933695382   10.12 9.115   7.904 K0III 110 1
11 V* V818 Sco LXB 16 19 55.0688745859 -15 38 25.019920749 11.60 12.40 11.1     Oev 1515 0
12 Wa Oph 4 TT* 16 48 18.0036179356 -14 11 15.795986860   15.40 13.46     K5Ve 30 0
13 V* HM Sge Sy* 19 41 57.0758884476 +16 44 39.856454738   12.38 11.10     M7 432 2
14 V* W Del Al* 20 37 40.0857987034 +18 17 03.752794100   9.89 9.81     A0 138 0
15 V* W Equ Al* 21 15 52.6198539606 +12 23 19.197732185   11.59 10.80     A7 15 0
16 BD+19 5116 ** 23 31 52.17898 +19 56 14.1505 12.737 11.749 10.165 8.982 7.446 M4+M5 416 0

    Equat.    Gal    SGal    Ecl

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2019.12.14-09:55:55

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