January Moon

07Jan06

Tonight’s observing session was short-lived due to poor seeing and gusty winds, despite excellent atmospheric transparency. Regardless, I still seized the opportunity to grab a couple of afocal lunar shots. 10″ dobsonian and Canon 20D w/50mm prime.

moon1

f/2, 1/30″, ISO 100

moon2

f/2, 1/60″, ISO 100

Addendum: in my zeal to post the images, I only included EXIF data from the camera exposures, above. Technically speaking… The dobsonian has a focal length of 1200mm, with 254mm of aperture. Using my TeleVue 24mm Pan provided a magnification of 50x. The resulting effective system focal length factoring in the lens equalled 2500mm, yielding a system f-ratio of f/9.8 in total.

Share or save this entry:These icons link to social bookmarking sites where readers can share and discover new web pages.
  • del.icio.us
  • digg
  • Fark
  • Furl
  • NewsVine
  • Reddit
  • TailRank
  • YahooMyWeb
Filed under: Astrophotography, Photography, Moon   |  

2 Responses to “January Moon”  

Feed for this Entry Trackback Address
  1. 1 Mushiwulf on Jan 8th, 2006 said:

    Beautiful pics.

  2. 2 Wolverine on Jan 9th, 2006 said:

    Thanks.

Leave a Reply

(required)

(required)

Quicktags:


rss

RSS 2.0 feed for entries. entries

RSS 2.0 feed for comments. comments

Related Entries

  • Crescent Sunset
  • The waxing crescent Moon (just shy of three days old) oversees a beautiful Hill Country Sunset. Canon 20 & 17-40mm L @ 37mm, 1/13", F/5, ISO-100 A wider view: Added 23:19 (just for
  • Moon and Halo
  • 11 January 2006 10:40 PM CST 95% waxing gibbous Moon Orion XT10i & TeleVue 35mm Panoptic Canon 20D and 17-40mm f/4L @ 40mm, f/7.1, 1/160" ISO-100 Eyepiece projection The above image was taken just prior
  • Waxing Poetic
  • Image Details: 11 January 2006 2:51 AM CST 91% waxing gibbous Moon Orion XT10i & TeleVue 35mm Panoptic Canon 20D and 17-40mm f/4L @ 40mm, f/5.6, 1/125" ISO-100 Eyepiece projection Can't help but wonder what I could
  • Transition
  • In coming days I should complete the move from ye olde Den to this new space. I've put some effort into retaining the same content but in a much more
  • Moon, Earthshine, Venus
  • Canon 20D with 50mm F/1.4 prime; 4" F/3.2 ISO-100 Venus lurks down between the trees; 2-day-old waxing crescent Moon is illuminated by doubly-reflected sunlight. Taken 8 June 2005.
  • Saturn at Opposition
  • If conditions in your area allow over the next couple of nights, plan on getting outside with your gear to take a peek at our ringed celestial neighbor. Image Credit: NASA,
  • Ready for Launch!
  • Image Credit: Johns Hopkins University Applied Physics Laboratory; Southwest Research Institute (JHUAPL/SwRI) New Horizons is in full flight configuration and on schedule for liftoff tomorrow, 17 January 2006, with the opening

faves

Bad Astronomy Universe Today RichardDawkins.net James Randi Educational Foundation National Aeronautics and Space Administration The Planetary Society Planetary Photojournal HubbleSite SkyTonight The Skeptic's Dictionary Committee for Skeptical Inquiry Mars Reconnaissance Orbiter The Skeptics Society Earth and Sky Cassini-Huygens Point of Inquiry Spaceweather Mars Exploration Rovers Solar and Heliospheric Observatory KUT 90.5 FM, Austin Texas