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TYC 7903-3149-1


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On the Connection Between CWA and RVA Stars
Phase plots of ASAS-3 data of a large number of CWA and RVA variablestars reveal that there is no clear distinction in period or light curveshape between these two types of stars.

Pulkovo compilation of radial velocities for 35495 stars in a common system.
Not Available

Photometry and radial velocities of cepheids and other variable stars in the Galaxy and the LMC
UBVRIc and radial velocity measurements are presented for Galactic andLMC Cepheids, and for several variables of other type. The photometrycomprises 168 objects with 1790 phases, and the speedometry 15 objectswith 97 phases.

Stars with the Largest Hipparcos Photometric Amplitudes
A list of the 2027 stars that have the largest photometric amplitudes inHipparcos Photometry shows that most variable stars are all Miras. Thepercentage of variable types change as a function of amplitude. Thiscompilation should also be of value to photometrists looking forrelatively unstudied, but large amplitude stars.

The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
The Henry Draper Extension Charts (HDEC), published in the form offinding charts, provide spectral classification for some 87000 starsmostly between 10th and 11th magnitude. This data, being highlyvaluable, as yet was practically unusable for modern computer-basedastronomy. An earlier pilot project (Roeser et al. 1991) demonstrated apossibility to convert this into a star catalogue, using measurements ofcartesian coordinates of stars on the charts and positions of theAstrographic Catalogue (AC) for subsequent identification. We presenthere a final HDEC catalogue comprising accurate positions, propermotions, magnitudes and spectral classes for 86933 stars of the HenryDraper Extension Charts.

Kinematics of field Type II Cepheid variables
The spectra of 49 field Type II Cepheids have been assembled andcombined with 14 additional stars with previously published radialvelocities in order to investigate the kinematics and spectralcharacteristics of these stars. Many of the stars have low peculiarvelocities consistent with circular rotation around the galaxy, whilesome are high-velocity stars. Outside the nuclear bulge, the velocitiesare correlated with photometric metallicities in the sense thatmetal-rich stars show a nearly normal, disklike rotation velocity and alow velocity dispersion. This correlation shows that the low-velocity,metal-rich stars have an old-disk origin. Fewer Cepheids are found inthe field than expected relative to clusters, suggesting a differencebetween the populations of the halo field and clusters. The kinematicproperties of Cepheids in the nuclear bulge appear to be different inthat both metal-poor and metal-rich Cepheids have a high velocitydispersion and show little systematic galactic rotation.

JHKL Infrared Photometry of Mira Variables and of Other Late-Type Stars
Not Available

Photoelectric observations of cepheids in the galactic centre region.
Abstract image available at:http://adsabs.harvard.edu/abs/1976MNRAS.175..129W

Galactic objects with the largest known radial velocities
Not Available

The light curve parameters of photoelectrically observed galactic Cepheids
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971A&AS....4..265S&db_key=AST

The High Velocity Variable QT CrA
Not Available

Five-colour photometry of 12 cepheids in the Small Magellanic Cloud
Not Available

Five-colour observations of 24 classical Cepheids
Not Available

Southern Cepheid Photometry.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1961ApJS....6..253I&db_key=AST

La répartition galactique des céphéides
Not Available

Le type de population des céphéides galactiques; critères de distinction des types et catalogue
Not Available

Photoelectric magnitudes and colours at maximum brightness for 184 Cepheids (Errata: 15 330)
Not Available

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Pozíciós és asztrometriai adatok

Csillagkép:Déli Korona
Rektaszcenzió:18h09m12.41s
Deklináció:-40°12'13.1"
Vizuális fényesség:11
RA sajátmozgás:2.9
Dec sajátmozgás:-12.2
B-T magnitude:12.674
V-T magnitude:11.139

Katalógusok és elnevezések:
Megfelelő nevek   (Edit)
TYCHO-2 2000TYC 7903-3149-1
USNO-A2.0USNO-A2 0450-32949690
HIPHIP 88933

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