Utah Skies Presents

Mark de Regt

Astro-Photographer-of-the-Month

Galaxies

	Photograph Details LLRGB: 192:60:60:96 (Luminance layer consisted of 24 eight minute images; R and G comprised of 6 ten minute images; B comprised of 6 sixteen minute images). L images unbinned; R, G and B binned 2x2. Equipment: 10" LX200 at f/6.1 SBIG ST-8E camera/CFW-8 color filter wheel Guided by an SBIG AO-7 adaptive optics device
	Object Details Common Name: The Triangulum Galaxy Catalog Designation: M33 Constellation: Triangulum Visual Magnitude: 5.71 Angular Size: 62' x 39' Distance from Earth: 2.3 million light years Right Ascension: 01h 34' 03" Declination: +30° 39' 59"

	Photograph Details LRGB: 150:50:50:80; L-15 ten minute images; R and G consisted of 5 ten minute images; B consisted of 8 ten minute images. All color images were binned 2x2; luminance images unbinned. Equipment: 10" LX200 at f/4.6 SBIG ST-7E camera/CFW-8 color filter wheel
	Object Details Common Name: The Whirlpool Galaxy Catalog Designation: M51 Constellation: Canes Venatici Visual Magnitude: 9..6 Angular Size: 5.4' x 4.3' Distance from Earth: 34.8 million light years Right Ascension: 13h 30' 07" Declination: +47° 14' 50"

Irregular Galaxy M82 as imaged by Mark de Regt

Photograph Details

LRGB: 124:40:40:72 (L, R and G were integrations of four minute images, all umbinned; B was an integration of eight minute images, all unbinned).

Equipment: 10" LX200 at f/4.6
SBIG ST-7E camera/CFW-8 color filter wheel

Object Details

Common Name: The Cigar Galaxy
Catalog Designation: M82
Constellation: Ursa Major
Visual Magnitude: 8.4
Angular Size: 11.2' x 4.6'
Distance from Earth: 11.4 million light years
Right Ascension: 09h 56' 05"
Declination: +69° 40' 02"

	Photograph Details LRGB: 136:48:48:80 (All comprised of 8 minute images). L images unbinned; R, G and B binned 2x2. Equipment: 10" LX200 at f/4.6 SBIG ST-7E camera/CFW-8 color filter wheel
	Object Details Catalog Designation: NGC6946 Constellation: Cepheus Visual Magnitude: 8.9 Angular Size: 11' x 9.8 Distance from Earth: 13.7 million light years Right Ascension: 20h 34' 49" Declination: +60° 09' 34"

Nebulae

	Photograph Details LRGB: 85:75:75:120 (five minute images, all unbinned). For the luminance layer, I took 55 five minute images, manually rejecting 38 of them for having stars too oblong (a frequent problem with the RA mechanism of the LX200). Equipment: 10" LX200 at f/4.6 SBIG ST-7E camera/CFW-8 color filter wheel
	Object Details Common Name: The Dumbbell Nebula Catalog Designation: M27 Constellation: Vulpecula Visual Magnitude: 7.6 Angular Size: 15.2' Distance from Earth: 978 light years Right Ascension: 19h 59' 42" Declination: 22° 43' 20"

	Photograph Details LLRGB: 135:45:45:72 (Luminance layer consisted of 9 fifteen minute images; R and G comprised of 3 fifteen minute images; B comprised of 3 twenty-four minute images). L images unbinned; R, G and B binned 2x2. Equipment: 10" LX200 at f/12 SBIG ST-8E camera/CFW-8 color filter wheel Guided by an SBIG AO-7 adaptive optics device at about 14.5 Hz for Lum.
	Object Details Common Name: The Crab Nebula Catalog Designation: M1 Constellation: Taurus Visual Magnitude: 8.4 Angular Size: 6.0' x 4.0' Right Ascension: 05h 34' 41" Declination: +22° 10' 10"

The Horsehead Nebula as imaged by Mark de Regt

Photograph Details

LLRGB: 75:30:30:48 (Luminance layer consisted of 5 fifteen minute images; R and G comprised of 2 fifteen minute images; B comprised of 2 twenty-four minute images). L images unbinned; R, G and B binned 2x2.

Equipment: 10" LX200 at f/12
(note that the image was reduced by 1/3 for posting, so the scale is equivalent to an f/8 image)
SBIG ST-8E NABG camera/CFW-8 color filter wheel
Guided by an SBIG AO-7 adaptive optics device at about 37 Hz for Lum.

Object Details

Common Name: The Horsehead
Catalog Designation: Barnard 33
Constellation: Orion
Right Ascension: 05h 41' 03"
Declination: -2° 27' 48"

	Photograph Details LRGB: 60:50:50:60 (Luminance consisted of four minute images; RGB consisted of ten minute images, all unbinned). Equipment: 10" LX200 at f/12 SBIG ST-7E camera/CFW-8 color filter wheel Guided by an SBIG AO-7 adaptive optics device at 37 Hz (luminance) and 11 Hz (RGB).
	Object Details Common Name: The Blue Snowball Nebula Catalog Designation: NGC 7662 Visual Magnitude: 9.2 Angular Size: 2.2' Distance from Earth: 3900 light years Constellation: Andromeda Right Ascension: 23h 26' 01" Declination: 42° 34' 02"

Stars & Star Clusters

	Photograph Details RGB: Red and Green channels are each median combines of ten .11 second images; the Blue channel is a median combine of ten .17 second images. Equipment: 10" LX200 at f/4.6, and an SBIG ST-7E camera/CFW-8 color filter wheel
	Object Details Common Name: Albireo Catalog Designation: Beta Cygnii Visual Magnitude: 3.05 Distance from Earth: 385.5 light years Separation: 35" Constellation: Cygnus Right Ascension: 19h 30' 48" Declination: +27° 57' 47"

	Photograph Details LRGB: 2:2:2:4 (L, R and G were two one-minute images; B was two two-minute images; L unbinned, R, G and B binned 2x2). Equipment: 10" LX200 at f/4.6 SBIG ST-7E camera/CFW-8 color filter wheel
	Object Details Common Name: The Hercules Star Cluster Catalog Designation: M13 Constellation: Hercules Angular Size: 16.6' Right Ascension: 16h 41' 46" Declination: +36° 27' 45"

If you'd like to see more GREAT images be sure to checkout Mark de Regt's website at: http://home.earthlink.net/~akilla/MAD/