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NGC 6720; M57; Ring Nebula; w/ IC 1296

The following astronomical image was taken by a user of GoldAstro.com products and presented here by permission.  Copyrights may apply.  Please contact the credited imager to inquire about permission for use and/or availability of larger images.

NGC 6720

(2000 x 1500 pixels) or Zoom with Ctrl+ and Ctrl-
Object(s): NGC 6720; M57; Ring Nebula, planetary nebula; with IC 1296, barred spiral galaxy
Telescope: Meade 12" LX200GPS f/5.9
Camera: Atik 383L+
Mount: Meade LX200GPS w/ Superwedge, permanent pier
Filters: Astrodon LRGB Tru-Balance E-Series; Orion H-a 7nm narrowband; Baader O-III 8.5nm narrowband;
Focus and
GoldFocus Plus Collimation Mask and Analysis Software v3.0
Autoguide: GoldGuide v2.1 w/ Orion 102mm Mak-Cass f/12.0, Meade DSI Pro II
Exposure: L:R:G:B:H-a:O-III = 440:90:90:90:1230:570 min.; 5 min. subframes; total 41.8 hours
Process: 2 masked layers: (1) star field and background - standard LRGB; (2) nebula and halo - H-a:O-III:O-III = RGB, weighted 1.0:1.0:0.6 for approximate true color; proprietary software, FITS Liberator 3, AIP4Win v2.4, Photoshop CS4
FOV: 20' x 15'
Date(s): 28 & 29 June 2012, 1-7 July 2012
Credit: Copyright © 2012 Jeff Winter, click for Inquiries