Un arco aurorale verde attraverso l'orizzonte settentrionale con componenti di colore rosso sbiadito sopra, con un tocco di blu pure. Il bagliore rosso forma un arco rosso molto scuro h

• Collaboratore: Alan Dyer / VWPics / Alamy Foto Stock
• ID dell’immagine: 2GYKT6K
• Dimensioni dei file: 55,6 MB (2,7 MB Download compresso)
• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 5400 x 3600 px | 45,7 x 30,5 cm | 18 x 12 inches | 300dpi
• Data acquisizione: 12 maggio 2021

Altre informazioni

A green auroral arc across the northern horizon with faint red components above, with a touch of blue as well. The red glow forms a very dim red arc high across the north which is likely a SAR — Stable Auroral Red — arc. It became more prominent a few minutes later when the main arc died down in intensity. The camera was the red-sensitive Canon EOS Ra so that helped pick up the dim deep red glow. The wide lens captures the full sweep of the auroral arc from NW at left to NE at right. This is a single untracked exposure for 30 seconds at f/2.8 with the TTArtisan 11mm full-frame fish-eye lens, on the EOS Ra at ISO 3200.

Parole chiave associate all'immagine

• 11 millimetri
• 2021
• abitazione
• alberta
• arc
• astrografo
• aurora
• azzurre
• campo
• eos ra
• fish-eye
• galassia
• mese di maggio
• rossa
• rosso aurorale stabile
• sar
• single
• ttartisan