Tags » Andromeda Galaxy

Astronomy and Normal Eye Function

The Andromeda Galaxy is the furthest, most remote night sky object visible to the naked eye.  It measures 220,000 light years in diameter and appears as a blue smudge in the constellation Andromeda between the constellations Cassiopeia and Pegasus.  301 more words

Dark Matter: Made of Sterile Neutrinos?

Composite image of the Bullet Group showing galaxies, hot gas (shown in pink) and dark matter (indicated in blue). Credit: ESA / XMM-Newton / F. Gastaldello (INAF/IASF, Milano, Italy) / CFHTLS  921 more words

Dark Matter

Milky Way Dark Matter Halo Loses 'Weight'

Milky Way Arch, CC BY 3.0, Bruno Gilli/ESO – http://www.eso.org/public/images/milkyway/

Mass estimates for our Milky Way vary widely, from less than 1 trillion, to as high as 4 trillion, times the mass of the Sun. 543 more words

Dark Matter

Looking To The Sky

Didn’t really want to blog today as I figured I shouldn’t blog toooo much. Anyway, just a little post to answer the question I posed in one of my recent posts: 313 more words

Teaching

Night Specters: The Haunted Stars

There are ghastly shapes above our heads. When the nights are dark and cold—ghosts of the night come alive. Ephemeral… tenuous… these night specters are buried at the edge of our perceptibility. 1,304 more words

Photography

M31 (Andromeda Galaxy)

  • Date: September 22, 2014
  • Time: 11:14 pm EDT
  • Location: Giles County, VA
  • Viewing conditions: mostly clear skies; light pollution index: Green; some skyglow to SSE; seeing: 5; transparency: 8; temperatures are in the low-50’s with no winds…
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NGC Objects