AstroEvent of the Week: Spotting Iridium Flares.

 
Photo by Author.  
   Looking up at the dawn or dusk skies, it’s not uncommon to see a satellite brighten, flare up, and the abruptly disappear from view. What you’ve just seen is an Iridium flare, a glint of sunlight off of a refrigerator sized satellite panel. Motorola launched this series of 66 communications satellites in 1997 [...]

Astro-Event: A Planetary-Galactic Pairing.

An interesting pairing of Saturn & NGC 4073. (Created by the Author in Starry Night).

 
   This week’s astro-challenge may test your skills as a “visual athlete;” a close visual conjunction of the planet Saturn and the galaxy NGC 4073.  This unique event comes to us via the computations of reader Ed Kotapish. On the evening [...]

Astro-Event of the Week-Redder than Red: V Hydrae.

 V Hydrae finder chart.
   This week, we here at Astroguyz are going to introduce you to a star that isn’t on the top 10 star party faves, but perhaps should be; V Hydrae.

Astro-Event: An Asteroid Occults a Bright Star.

The path of 824 Anastasia the morning of April 6th. (Created in Google Earth).
One of the best occultations of a bright star occurs this week for observers along a line from western Canada down the U.S. west coast. At around 10:00 UT, on the morning of April 6th, 14th magnitude asteroid 824 Anastasia will occult, or pass [...]

02.04.10- Cassiopeia A: A Quark Star?

   
   The supernova remnant Cassiopeia A holds a compelling astrophysical mystery. Located about 10,000 light years away, this strong radio source was identified in 1947 and remains the most recent galactic supernova known. One slightly odd fact revolves around Cas A; despite its having burst about 325 years ago as seen from Earth, no reliable [...]

16.03.10:Relativity Triumphant over Bizarre Binary.

 
   For years, a unique binary system has plagued Einsteinian physics. DI Herculis (DI Her) is a seemingly innocuous binary star about 2,000 light years distant. Type B stars each about five times the mass of our Sun, these stars are in a mutual orbital embrace about 0.2 A.U. apart. Visually, the system is at [...]

Next Page »