Contents
Images
Upload your image
DSS Images Other Images
Related articles
Pulkovo compilation of radial velocities for 35495 stars in a common system.
Not Available
| Ground-based Near-Infrared Imaging of the HD 141569 Circumstellar Disk
We present the first ground-based near-infrared image of thecircumstellar disk around the post-Herbig Ae/Be star HD 141569Ainitially detected with the Hubble Space Telescope (HST). Observationswere carried out in the near-IR (2.2 ?m) at the Palomar 200 inchtelescope using the adaptive optics system PALAO. The main large-scaleasymmetric features of the disk are detected on our ground-based data.In addition, we measured that the surface brightness of the disk isslightly different than that derived by HST observations (at 1.1 and 1.6?m). We interpret this possible color effect in terms of dustproperties and derive a minimal grain size of 0.6+/-0.2 ?m forcompact grains and a power-law index for the grain size distributionsmaller than -3. Basic dynamical considerations are consistent with thepresence of a remnant amount of gas in the disk.
| Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.
| Stromgren and H-beta photometry of stars earlier than G0 in 5 areas containing high latitude molecular clouds
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1989A&AS...80..127F&db_key=AST
|
Submit a new article
Related links
Submit a new link
Member of following groups:
|
Observation and Astrometry data
| Constellation: | Libra |
| Right ascension: | 15h57m08.63s |
| Declination: | -06°17'47.9" |
| Apparent magnitude: | 7.187 |
| Distance: | 117.509 parsecs |
| Proper motion RA: | 3 |
| Proper motion Dec: | -4.1 |
| B-T magnitude: | 7.376 |
| V-T magnitude: | 7.203 |
Catalogs and designations:
|
