September 20, 2017

AstroEvent: The Best Appearance of Mercury in 2011.

Mercury+Jupiter in the dusk. (Photo by Author).

If you’ve never seen the inner-most world of our solar system, this week is your chance. On Tuesday, March 22nd, the planet Mercury reaches a greatest elongation of 19 degrees east of the Sun.  Due to the varying angle of our ecliptic during different times of the year coupled with an eccentricity of 0.21 for Mercury’s orbit, not all apparitions of the innermost world are equal. [Read more...]

AstroEvent(s): A Conjunction, a Perihelion, a Meteor Shower & an Eclipse…

A Partial Solar Eclipse seen from Davis-Monthan Air Force Base, Arizona. (Photo by Author).

   2011 is here; let the astronomy events begin! And a what a busy first week of January it is; right out the gate, we have no less than four significant events to talk about; [Read more...]

January 2011: Life in the Astro-Blogosphere.

Last month’s outstanding Total Solstice Eclipse! (Photo by Author).

   The month of January sees the first month of the first year of the second decade of the 21st century. While we continue to review and bring you the best in astronomy, science, and science fiction, some would argue that we’re already living it… shouldn’t we have jet packs by now? [Read more...]

AstroEvent: A Very Looong Annular Eclipse!

Animation of the Annular Eclipse on January 15th, 2010.

Animation of the Annular Eclipse on January 15th, 2010. (Credit: NASA/A.T. Sinclair).

          One of the more unique celestial events on the calendar for 2010 occurs on Friday, January 15th; an annular eclipse of the Sun, and the longest for the millennium! An annular solar eclipse occurs when the moon is at or near apogee (its most distant point from the Earth) and/or the Earth is at or near perihelion (its closest approach to the Sun)… these happened on January 17th and January 2nd respectively, setting us up for a visually large Sun and correspondingly small Moon, small enough that it won’t completely cover the Sun’s disk.   The maximum possible duration for an annular eclipse is 12 minutes and 24 seconds and the actual maximum for this eclipse is 11 minutes and 7.7 seconds, which occurs off of the southwestern coast of the Indian subcontinent. [Read more...]

Event of the Week: 20.07.09: A VERY long solar eclipse!!!



The astronomical event of the year is about to take center stage this Wednesday. A total eclipse of the Sun, the longest possible for a VERY long time! Those lucky enough to have secured a ticket or live along the Pacific/Southeast Asia corridor will see an eclipse of a duration of up to 6 minutes and 39 seconds, near the maximum 7 minutes and 31 seconds possible. This is a consequence of the Earth passing aphelion a few weeks ago (read: a visually small Sun) and the a large New Moon very near perihelion (remember the year’s smallest Full Moon a few weeks back?) [Read more...]