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Identification of moving groups and member selection using HIPPARCOS data
A new method to identify coherent structures in velocity space - movinggroups - in astrometric catalogues is presented: the Spaghetti method.It relies on positions, parallaxes and proper motions, and is ideallysuited to searching for moving groups in the Hipparcos Catalogue. Noradial-velocity information is required. The method has been testedextensively on synthetic data, and applied to the Hipparcos measurementsfor the Hyades and IC 2602 open clusters. The resulting lists of membersagree very well with those of Perryman et al. for the Hyades and thoseof Whiteoak & Braes for IC 2602.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Vele |
| Ascensione retta: | 10h27m29.36s |
| Declinazione: | -53°40'36.1" |
| Magnitudine apparente: | 8.115 |
| Distanza: | 146.843 parsec |
| Moto proprio RA: | -104.9 |
| Moto proprio Dec: | 64.6 |
| B-T magnitude: | 9.41 |
| V-T magnitude: | 8.222 |
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