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Essays
  Sunday, March 06, 2011

 

3towers Lunar 100

3towers Moon Halos

 

 

New Essays:

Astrophotography with the Nikon D100

Color Magnitude Diagram of M67

Space Quarantine

Olbers' Paradox

 
 
New Grasslands Observatory Deep-Sky Images

 

 
Arp143 Arp157   Arp184 Arp206
         
 
Comet Hartley 2 Arp12   Arp39 Arp41
         
 
Arp41 Arp48   Arp123 Arp119 & Arp88
         
 
Arp4 Arp11   Arp15 Arp127
         
 
NGC125 Arp258   Arp333 M33
         
 
M5 (NGC5904) M40   M59/M60 M64 (NGC4826)
         
 
Arp 22 (NGC4027) Arp183; Arp36   Arp94 (NGC3226+3227) Arp120 (NGC4438+4435)
         
 
NGC3127, 3128; MCG-3-26-21 Horsehead Nebula (IC434)   Horsehead Nebula (IC434) in Hydrogen alpha Rosette Nebula (NGC2237)
         
 
Rosette Nebula (NGC2237) in Hydrogen alpha IC443   IC443 in Hydrogen alpha NGC7538 and environs, including M52 and NGC7635 (Bubble Nebula)