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Photograph Details
Telescope: 17.5" f4.5 Newtonian.
Camera: Apogee AP7P
Photograph Notes: Luminance-layered image of the Sombrero Galaxy (M104), made from images taken with an Apogee AP7P camera and CMY filters on 5/1/00 by Al Kelly at TSP 2000 (the Texas Star Party) in the Davis
Mountains of West Texas with a 17.5? f4.5 Newtonian. Thirty-second subexposures were autoguided. Total stacked exposure durations were 10 minutes unfiltered and 5 minutes through each of the CMY filters.
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Object Details
Common Name: The Sombrero Galaxy
Catalog Designation:
M104
Constellation:
Virgo
Visual Magnitude:
9.0
Angular Size:
8.47' x 4.35'
Distance from Earth:
39.8 million light years
Right Ascension:
12h 40' 06"
Declination:
-11° 37' 41" |
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Photograph Details
Telescope: USNO 1.0- meter telescope
Photograph Notes: WHRGB color composite of spiral galaxy NGC3184 made by Al Kelly from filtered images taken by Arne Henden of the US Naval Observatory in Flagstaff, AZ with the
USNO 1.0- meter telescope. Arne used
BVRH filters (B=blue, V=green, R=red, and H=Hydrogen alpha=red). This is a luminance-layered color composite, using a processed stack of all filtered images to create the white (luminance) layer.
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Object Details
Catalog Designation:
NGC3184
Constellation:
Ursa
Major
Visual Magnitude:
10.0
Angular Size:
6.9' x 7.37'
Distance from Earth:
31.8 million light years
Right Ascension:
10h 18' 24"
Declination:
+41° 24' 24" |
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Photograph Details
Telescope: USNO 3.5-meter WIYN telescope
LRGB = 120:10:10:20minutes
Photograph Notes:L/RGB color composite of dusty galaxy NGC 2903, made by Al Kelly from filtered images taken by Arne Henden of the US Naval Observatory in Flagstaff, AZ, using the 3.5-meter WIYN telescope and a 2048x2048 CCD array. Arne made four short-exposure images using BVRI filters (B/V/R/I = 6/3/3/2 minutes). All images were summed to create the luminance layer, red=R+I, green=V, and blue=B.
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Object Details
Catalog Designation:
NGC2903
Constellation:
Leo
Visual Magnitude:
9
Angular Size: 12.6' x 5.6'
Distance from Earth:
26 million light years
Right Ascension:
9h 32' 18"
Declination:
+21° 29' 29" |
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Photograph Details
Telescope: Celestron C-8 at f5.6
Photograph Notes: WCMY image of NGC4565 (the Needle galaxy) made from images taken on 3/3/00 by Al Kelly with a C-8 at f5.6 from Ft. McKavett, Texas. The unfiltered, cyan, magenta, and yellow exposures were 25, 13, 15, and 17 minutes respectively. |
Object Details
Catalog Designation:
NGC4565
Constellation:
Coma
Berenices
Visual Magnitude:
9.75
Angular Size: 16.2' x 2.1'
Distance from Earth:
60 million light years
Right Ascension:
12h 36' 23"
Declination:
+25° 58' 23" |
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Photograph Details
Telescope: USNO 1.0- meter telescope
Photograph Notes: WRGB color composite of unusual galaxy NGC3718, made by Al Kelly from filtered images taken at Al's request by Arne Henden of the US Naval Observatory in Flagstaff, AZ with the USNO 1.0- meter telescope. Arne made images using BVR filters. Al composited B=blue, V=green, and R=red and created the luminance layer from a stack of all images. |
Object Details
Catalog Designation:
NGC3718
Constellation:
Ursa
Major
Visual Magnitude:
10.5
Angular Size: 8.7 'x 4.3'
Distance from Earth:
52 million light years
Right Ascension:
11h 32' 42"
Declination:
+53° 03' 20" |
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Photograph Details
Telescope: 1.0-meter USNO telescope
1024x1024 SITe-chip CCD camera
Photograph Notes: L/RGB color composite of dark nebula B33 (The Horsehead), made by Al Kelly from filtered images taken by Arne Henden of the US Naval Observatory in Flagstaff, AZ. Arne made 5 images using BVR filters and three images unfiltered for luminance, totaling 85 minutes of exposure time. Arne used the 1.0-meter USNO telescope and a 1024x1024 SITe-chip CCD camera. |
Object Details
Catalog Designation:
B33 - The Horsehead Nebula
Constellation:
Orion
Angular Size: 6' x 4'
Distance from Earth:
1500 light years
Right Ascension:
5h 41' 00"
Declination:
-2° 28' 03" |
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Photograph Details
Photograph Notes: L/RGB color composite of Van Den Berg 142 (embedded in IC1396 in Cepheus). Made by Al Kelly from images taken by Arne Henden of the US Naval Observatory in Flagstaff, AZ. Arne made numerous images, both unfiltered and using B, V, R, and Ha filters. This image retains true color while emphasizing the Ha nebular component. The unfiltered and Ha images were summed to create the luminance layer, red=R+Ha, green=V, and blue=B. |
Object Details
Catalog Designation:
vdB 142
Constellation:
Cephus
Visual Magnitude:
Angular Size: 1.0'
Right Ascension:
21h 39' 12"
Declination:
+57° 303' 45" |
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Photograph Details
Telescope: 8" SCT at f10
Camera: Starlight Express MX916
Photograph Notes: L/RGB image of planetary nebula M27 (the Dumbbell) in Cygnus, made from images taken by Al Kelly on 10/07/01 with a Starlight Express MX916 and an 8" SCT at f10 from Friendswood, Texas. Six 240-second unfiltered subexposures, two 240-second subexposures in red, two 240-second subexposures in green, and three 240-second subexposures in blue were acquired in Astroart and processed in AIP4WIN. |
Object Details
Catalog Designation:
M27 - The Dumbbell Nebula
Constellation:
Vulpecula
Angular Size: 15.2'
Right Ascension:
19h 59' 43"
Declination:
+22° 43' 33" |
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Photograph Details
32" f4 Newtonian
Apogee AP7P camera and CMY filters
Photograph Notes: Luminance-layered image of the Owl Nebula (M97), made from images taken with an Apogee AP7P camera and CMY filters on 4/8/00 by Al Kelly and Danny Siner with a 32" f4 Newtonian from Danciger, Texas. Thirty-second subexposures were autoguided. Total stacked exposure durations were 10 minutes unfiltered and 5 minutes through each of the CMY filters. |
Object Details
Catalog Designation:
M97 - The Owl Nebula
Constellation:
Ursa
Major
Angular Size: 3.2'
Right Ascension:
11h 14' 54"
Declination:
+55° 00' 20" |
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Photograph Details
32" f4 Newtonian
CB245, Starlight Express
MX916
Photograph Notes: L/RGB image of planetary nebula M57 (the Ring Nebula in Lyra), made from luminance (unfiltered) images taken by Al Kelly on 5/29/98 with a CB245 and chrominance (RGB-filtered) images taken on 5/19 /02 with a Starlight Express MX916, both using a 32" f4 Newtonian from Danciger, Texas. The new RGcBc filter set from Chet Schuler was used. Two 60-second low-res subexposures in red, two 60-second low-res subexposures in green, and two 60-second low-res subexposures in blue were acquired in Astroart and processed in AIP4WIN. |
Object Details
Catalog Designation:
M57
Constellation:
Lyra
Angular Size: 2.5'
Right Ascension:
18h 53' 42"
Declination:
+33° 02' 02" |
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Photograph Details
32" f4 Newtonian
Photograph Notes: L/CMY image of planetary nebula NGC 1535 in the constellation Eridanus, made from images taken by Al Kelly on 11/25/00 with CB245 and 32" f4 Newtonian from Danciger, Texas. Six 15-second subexposures in cyan, five 15-second subexposures in magenta, and five 15-second subexposures in yellow were combined with six 15-second subexposures in white (unfiltered). |
Object Details
Catalog Designation:
NGC1535
Constellation:
Eridanus
Angular Size: 41"
Right Ascension:
4h 14' 19"
Declination:
-12° 43' 25" |
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Photograph Details
USNO 1.0- meter telescope
Photograph Notes: RGB color composite of supernova remnant SH2-224 made by Al Kelly from filtered images taken by Arne Henden of the US Naval Observatory in Flagstaff, AZ with the USNO 1.0- meter telescope. Arne used BVH filters (B=blue, V=green, and H=Hydrogen alpha=red). Sh2-224 is located about 3.5 degrees SE of Capella. |
Object Details
Catalog Designation: SH2-224
Constellation:
Auriga
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Photograph Details
Celestron C8 @ f5
Starlight Express MX916 CCD Camera
Photograph Notes: L/RGB image of globular cluster M3 in Canes Venatici, made from images taken by Al Kelly on 7/17/02 with a Starlight Express MX916 and a C8 @ f5 from Friendswood, Texas. The new RGcBc filter set from Chet Schuler was used. Five 120-second unfiltered subexposures, four 120-second subexposures in red, four 120-second subexposures in green, and four 120-second subexposures in blue were acquired in Astroart and processed in AIP4WIN. |
Object Details
Catalog Designation:
M3
Constellation:
Canes
Venatici
Angular Size: 16.2'
Right Ascension:
13h 42' 18"
Declination:
28° 22' 28" |
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Photograph Details
Celestron C8 @ f10
Starlight Express MX916 CCD Camera
Photograph Notes: L/RGB image of globular cluster M4 in Scorpius, made from images taken by Al Kelly on 7/4/02 with a Starlight Express MX916 and a C8 @ f10 from Friendswood, Texas. The new RGcBc filter set from Chet Schuler was used. Five 120-second unfiltered subexposures, three 120-second subexposures in red, three 120-second subexposures in green, and two 120-second subexposures in blue were acquired in Astroart and processed in AIP4WIN. |
Object Details
Catalog Designation:
M4
Constellation:
Scorpius
Angular Size: 26'
Right Ascension:
16h 23' 45"
Declination:
-26° 32' 23" |
