September Targets

These are deep sky targets seen from Caltech 9-11PM Local in September.

Object	Alternative Names	Type	Brightness	Surface Brightness	Size	Suggested Telescope/Eyepiece	Notes	Links for More Information
Albireo		Double Star	0.33	-	35" apart	>= 6"	High constrast binary with one star red, one star blue. Good excuse to talk about stellar types and colors and evolution.	EarthSky Wikipedia
Andromeda Galaxy	M31	Spiral galaxy	3.4	13.4	178'x63'	>= 10"	Can only see core in telescope, appears as faint, white cloud. 2.5 Mlyr distant. Similar in mass and luminosity to Milky Way. Moving toward us at 70miles/s; Collision expected in 2.5 Gyr	Astropixels SEDS Wikipedia
Double Cluster	NGC869 + NGC884 Caldwell 14	Open Cluster	3.8	10.9	60'	>= 10"	Two bright, resolved star clusters side by side. Need wide FOV. Both are young clusters, 7 klyr away, ~14 Myr old, containing luminous B stars	Astropixels SEDS Wikipedia
M13	NGC6205, Hercules Cluster	Globular Cluster	5.8	11.0	20'	>= 10"	Appears as a faint white cloud, can resolve some stars: 300,000 stars, 11.6 Gyr old, 22 klyr away; the Arecibo Message, one of the first attempts at communicating with extraterrestrials was beamed at M13	Astropixels SEDS Wikipedia
Ring Nebula	M57	Planetary Nebula	8.8	10.9	230"	>= 10"	Appears as a faintly colored ring, small.	Astropixels SEDS Wikipedia

Topic revision: r1 - 2016-07-04 - OutreachAdmin