Contenuti
Immagini
Carica la tua immagine
DSS Images Other Images
Articoli relazionati
Absorption in and around the H II region Lambda Orionis
Star counts were made, using the Cosmos measuring machine, in the fieldof the H II region excited by Lambda Orionis. These confirm thepreviously identified shell of absorption at the edge of the ionizedregion as well as a central core of absorption, and indicate thepossible presence of a second shell of absorption within the H IIregion, perhaps associated with the He II zone. The absorption radiallythrough the outer shell is 0.15 mag. Through the inner shell thisabsorption is 0.15 mag and along a radius of the central core, 0.35 mag.The mass of the dust in the outer shell, said to be formed by expansionof the H II region, is 2000 solar masses. Only 30 solar masses of dustare left in the central core.
|
Sottometti un nuovo articolo
Link relazionati
Sottometti un nuovo link
Membro dei seguenti gruppi:
|
Osservazione e dati astrometrici
| Costellazione: | Orione |
| Ascensione retta: | 05h36m29.63s |
| Declinazione: | +09°37'54.2" |
| Magnitudine apparente: | 8.936 |
| Moto proprio RA: | 4.9 |
| Moto proprio Dec: | -0.9 |
| B-T magnitude: | 8.952 |
| V-T magnitude: | 8.938 |
Cataloghi e designazioni:
|
