AstroPhotography by Dan Richey

Previous | Next

C/2012 S1 ISON
Home » Comets » C/2012 S1 ISON

C/2012 S1 ISON

Click on Image for Slide Show

See full-resolution photo

C/2012 S1 will come to perihelion (closest approach to the Sun) on 28 November 2013 at a distance of 1,150,000 mi from the center point of the Sun. Accounting for the solar radius of 432,200 mi, C/2012 S1 will pass approximately 724,000 mi above the Sun's surface. Its trajectory appears hyperbolic, which suggests that it is a dynamically new comet coming freshly from the Oort cloud. On its closest approach, C/2012 S1 passed about 6,737,000 mi from Mars on 1 October 2013, and it will pass about 39,900,000 mi from Earth on 26 December 2013.

Object Information

Name C/2012 S1 ISON
Type Comet
Constellation Leo

Acquisition / Processing

Exposure L - 240 sec
Telescope AP 160 @ f7.7
Camera SBIG STF-8300
Camera Temp -28ÂșC
Guiding SBIG SG4 / AP 105
Mount AP 900GTO
Filters Astrodon-Gen 2 LRGB
Processing CCDStack, PhotoShop
Location San Pedro Creek, NM
Date October 6, 2013

© Copyright 2019 Dan Richey