< Newer Up Older >

Messier 13
(click for full resolution image)

Closer crop of the core:

Optics: AG Optical 12.5" iDK @ f/6.7 l=2130mm
Camera: QSI 683wsg-8 @ -25C
Filters: Astrodon Tru-Balance Gen 2 E Series LRGB
Mount: Astro-Physics AP 1100GTO
Guiding: OAG with Starlight Xpress Lodestar X2 Guider / PHD2 Guiding
Location: North Attleboro, Massachusetts
6.67 hours exposure over 6 nights, 2015-06-07 - 2015-06-22
L:R:G:B 2h50m:1h10m:1h30m:1h10m (34x5m : 14x5m : 18x5m : 14x5m) binned 1:1:1:1
Captured with Sequence Generator Pro
Processed with PixInsight and Photoshop CS6