Thank you for your patience while we retrieve your images.
Uploaded 10-May-10
Taken 8-May-10
Visitors 126


293 of 388 items
Thumbnails
Info
Photo Info

Dimensions800 x 600
Original file size363 KB
Image typeJPEG
Color spacesRGB
Date taken8-May-10 14:11
Date modified10-May-10 11:53
Shooting Conditions

Camera makeCanon
Camera modelCanon EOS 7D
Focal length50 mm
Exposure1/15 at f/1
FlashNot fired, compulsory mode
Exposure bias0 EV
Exposure modeManual
Exposure prog.Manual
ISO speedISO 800
Metering modePattern
Sun in Ha - a large prominence

Sun in Ha - a large prominence

Date: May 8, 2010 2:10pm PDT

Location: Victoria, BC, Canada

There were multiple solar prominences visible on the Sun this afternoon. This was the most spectacular, and featured a little hole in the prominence near the Sun's surface - visible through the eyepiece as well as in this photo. The solar disk also displayed a large plague, however it is not visible in this cropped image.

Exposure: 1/15 second at ISO 800
Bandpass: <0.55 A

Equipment: Canon 7D dSLR a-focal through a 2.5x Powermate & Lunt LS60THa + LS50FHa solar telescope mounted on an HEQ5 tracking mount.

Processing: ACDSee Pro 3 - Sobel edge detection; aggressive contrast stretch, crop.