Another star of interest in the constellation Canes Venatici is "La Superba", Y Canus Venaticorum or Y CVn. It is one of the reddest stars in the sky. It belongs to a class of stars called "Carbon Stars". These stars have large amounts of carbon compounds in their atmosphere which absorb short wavelengths. The name was coined by the 19th-century astronomer priest Angelo Secchi.
 |
credit: SkySafariAstronomy.com
|
 |
La Superba. E-M5 + Rokinon 135mm f/2. ISO 800, 30 s. 2° FOV.
|
 |
E-M5iii + AT72mmEDII. ISO 1600, 10 s. 0.5° FOV.
|
 |
E-M1iii + Tokina AT-X 80-200mm f/2.8 @ 200mm + softon filter. ISO 1600, 30 s.
|
This last image shows the red color best. The lens is an old Nikon-mount manual-focus zoom adapted to the micro-four-thirds E-M1iii. Sky brightness was sqml=19.62.
No comments:
Post a Comment
Comments are moderated.