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| The general catalogue of trigonometric [stellar] paralaxes Not Available
| Visual polarization measurements in the Cepheus flare We present polarization measurements on a stellar sample located in alarge area in Cepheus. The observations were made with the 2-m telescopeat the Pic du Midi (France), around 4350 A and with an accuracy of thepolarization degree of the order of 0.0001. At large scales, we findthat the galactic magnetic field as given by the direction of thepolarization (alignment of the dust) is, roughly speaking, parallel tothe galactic plane in the Cassiopeia cloud, with a scale size of theorder of 100 pc, while it is turned by about 90 in the Cepheus cloud. Atsmall scales, in both the Cepheus and the Cassiopeia clouds, the COcontent has little correlation with the degree of polarization.
| Parallaxes and proper motions. XVII Parallaxes and proper motions are presented for 23 stars in 19 starfields. Seven of the target stars and one other star have no previousparallax determinations. New photometry is also presented for two of thestars for which previous data had not been published. Two of the targetstars are resolved binaries for which both components were measuredseparately; one of the two is not a physical pair. This list is thefirst in the series which makes use of the PDS microdensitometer of theYale Observatory with five of the 19 star fields being measured there.The PDS measures are too few for a reliable direct comparison with thehand measures, but they appear to be more accurate. This is also thefirst list to report parallaxes of subdwarf candidates. Subluminousstars now form a second commitment of the program along with the K and Mdwarfs which have formerly dominated the program.
| Yerkes actinometry. Zone +73deg to +90deg. Not Available
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Datos observacionales y astrométricos
Constelación: | Dragón |
Ascensión Recta: | 19h04m54.67s |
Declinación: | +79°38'47.9" |
Magnitud Aparente: | 7.914 |
Distancia: | 211.416 parsecs |
Movimiento Propio en Ascensión Recta: | -42.3 |
Movimiento Propio en Declinación: | -58.8 |
B-T magnitude: | 9.148 |
V-T magnitude: | 8.016 |
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