All Member Photos

IC 5146 Cocoon Nebula
Photo by Brian Colville

Eastern Veil NGC6995-6992
Photo by Brian Colville

NGC6823
SV220 C8f19 31 180sec
ADBE-NX-BE Spl-USM-Rec-PCC-HT
Photo by Brian Colville

NGC6823 imaged with the C8/Fastar optics system, ASI294MC Pro camera and a Svbony SV220 Dual Band Ha/OIII filter. 90 minutes of data stacked and processed in PixInsight
Photo by Brian Colville

My first image of Saturn for 2026, taken on October 17th with the C14 and an IR pass filter (680nm)
Photo by Brian Colville

SIMPLE = T / file does conform to FITS standard
BITPIX = 16 / number of bits per data pixel
NAXIS = 3 / number of data axes
NAXIS1 = 4090 / length of data axis 1
NAXIS2 = 9975 / length of data axis 2
NAXIS3 = 3 / length of data axis 3
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format is defined in ‘Astronomy
COMMENT and Astrophysics’, volume 376, page 359; bibcode: 2001A&A…376..359H
BZERO = 0. / Offset data range to that of unsigned short
BSCALE = 1. / Default scaling factor
PROGRAM = ‘Siril 1.4.4’ / Software that created this HDU
DATE = ‘2026-08-30T17:09:29’ / UTC date that FITS file was created
DATE-OBS= ‘2026-08-30T09:39:32’ / YYYY-MM-DDThh:mm:ss observation start, UT
ROWORDER= ‘BOTTOM-UP’ / Order of the rows in image array
FOCALLEN= 2036.079 / [mm] Focal length
XBINNING= 1 / Camera binning mode
YBINNING= 1 / Camera binning mode
XPIXSZ = 4.63 / [um] Pixel X axis size
YPIXSZ = 4.63 / [um] Pixel Y axis size
STACKCNT= 1 / Stack frames
OBJCTRA = ’20 46 10.177′ / [H M S] Image center Right Ascension
OBJCTDEC= ‘+30 37 21.518’ / [D M S] Image center Declination
RA = 311.542402612469 / [deg] Image center Right Ascension
DEC = 30.622643834063 / [deg] Image center Declination
CTYPE1 = ‘RA—TAN-SIP’ / TAN (gnomic) projection + SIP distortions
CTYPE2 = ‘DEC–TAN-SIP’ / TAN (gnomic) projection + SIP distortions
CUNIT1 = ‘deg ‘ / Unit of coordinates
CUNIT2 = ‘deg ‘ / Unit of coordinates
EQUINOX = 2000. / Equatorial equinox
CRPIX1 = 2045.5 / Axis1 reference pixel
CRPIX2 = 4988. / Axis2 reference pixel
CRVAL1 =

Sun with sigma filter – whole solar disc, December 2025, taken by Brian Colville

Sun with Ha filter – whole solar disc, December 2025, taken by Brian Colville

Sun in Ha and Ck wavelengths – partial solar disc, May 2025, taken by Brian Colville

Sun in Ha and Ck wavelengths – close-up on sunspot, May 2025, taken by Brian Colville

Sun in Ha and Ck wavelengths – slice of solar disc, May 2025, taken by Brian Colville

Sun in Ha and Ck wavelengths – solar northern hemisphere, May 2025, taken by Brian Colville

Sun in Ha and Ck wavelengths – whole solar disc, May 2025, taken by Brian Colville

Saturn in two different spectra, October 2025, taken by Brian Colville

Night sky seen through trees – facing southwest, March 2025, taken by Brian Colville

Night sky seen through trees – facing south, March 2025, taken by Brian Colville

Night sky seen through trees – looking overhead, March 2025, taken by Brian Colville

Night sky seen through trees – facing northeast, March 2025, taken by Brian Colville

Aurora, March 2025, taken by Brian Colville

Sun with Hydrogen Alpha filter by Brian Colville