M13
The great globular cluster in Hercules, plus bonus galaxy NGC 6207 in lower right. M13 comprises a few hundred thousand stars 20,000 light years off; the galaxy is a thousand fold bigger and further out into space.
Tech stuff: Televue-85 with 1.08X Borg Flattener/ZWO ASI 1600MC/IDAS LPS D-2 Filter/SkyWatcher Star Adventurer mount guided. 4 second exposures captured as Live Stacks in SharpCap 3.2; 96 minutes total integration time processed in PixInsight. Imaged from my yard 10 miles north of NY City, SQM-L 18.7 (Bortle 7 suburban sky).
M13
The great globular cluster in Hercules, plus bonus galaxy NGC 6207 in lower right. M13 comprises a few hundred thousand stars 20,000 light years off; the galaxy is a thousand fold bigger and further out into space.
Tech stuff: Televue-85 with 1.08X Borg Flattener/ZWO ASI 1600MC/IDAS LPS D-2 Filter/SkyWatcher Star Adventurer mount guided. 4 second exposures captured as Live Stacks in SharpCap 3.2; 96 minutes total integration time processed in PixInsight. Imaged from my yard 10 miles north of NY City, SQM-L 18.7 (Bortle 7 suburban sky).