Contents
Images
Upload your image
DSS Images Other Images
Related articles
The interstellar 217 NM band - A third catalogue of equivalent widths
A catalog of equivalent widths of the 217 nm interstellar absorptionband as well as other parameters characterizing the extinction curve inthe ultraviolet has been compiled for 790 O and B stars. A relativelytight correlation between the equivalent width of the 217 nm band andE(B-V) indicates that the absorber of this band is connected with thepopulation of larger interstellar grains responsible for the visualextinction. The parameter characterizing the amount of extinction in thefar UV is only weakly correlated with E(B-V), a result in accord withthe assumption that a second population of very small grains causes therapid increase of the far-UV extinction.
| The Henry Draper extension .
Not Available
|
Submit a new article
Related links
Submit a new link
Member of following groups:
|
Observation and Astrometry data
| Constellation: | Pfeil |
| Right ascension: | 19h25m29.56s |
| Declination: | +17°41'03.8" |
| Apparent magnitude: | 9.741 |
| Proper motion RA: | 3.3 |
| Proper motion Dec: | -7.9 |
| B-T magnitude: | 10.186 |
| V-T magnitude: | 9.778 |
Catalogs and designations:
|
INHABITED SKY
