Terry Robison
NGC 2217 - Lenticular Galaxy in Canis Major
This is NGC 2217, a lenticular galaxy located in the constellation of Canis Major, The Great Dog. It has a set of spiral arms tightly wound with a bluish colour. They form an almost circular ring around the galaxy. This blueish colour indicates the presence of hot, luminous young stars born out of interstellar gas clouds.
Contrasting this is the central bulge and bar region. This area is golden/yellower in appearance as it contains older stars. I especially love the two thin tight arms around the central bar. It looks like an eye looking back.
A few quick facts:
Surface Brightness 23.69 mag/arcsec2
Major Angular Size 4.63 arcmin
Minor Angular Size 4.12 arcmin
Right ascension06h 21m 40.35s
Declination−27° 13′ 56.90″
Distance73 Mly 22.4 Mpc
Position Angle 113°
Instruments Used:
10 Inch RCOS fl 9.1
Astro Physics AP-900 Mount
SBIG STL 11000m
FLI Filter Wheel
Astrodon Lum, Red, Green, Blue Filters
Exposure Details:
Lum 35X600 Bin1
Red 16X450 Bin2
Green 16X450 Bin2
Blue 27X450 Bin2
Total Time: 13.20 hours
NGC 2217 - Lenticular Galaxy in Canis Major
This is NGC 2217, a lenticular galaxy located in the constellation of Canis Major, The Great Dog. It has a set of spiral arms tightly wound with a bluish colour. They form an almost circular ring around the galaxy. This blueish colour indicates the presence of hot, luminous young stars born out of interstellar gas clouds.
Contrasting this is the central bulge and bar region. This area is golden/yellower in appearance as it contains older stars. I especially love the two thin tight arms around the central bar. It looks like an eye looking back.
A few quick facts:
Surface Brightness 23.69 mag/arcsec2
Major Angular Size 4.63 arcmin
Minor Angular Size 4.12 arcmin
Right ascension06h 21m 40.35s
Declination−27° 13′ 56.90″
Distance73 Mly 22.4 Mpc
Position Angle 113°
Instruments Used:
10 Inch RCOS fl 9.1
Astro Physics AP-900 Mount
SBIG STL 11000m
FLI Filter Wheel
Astrodon Lum, Red, Green, Blue Filters
Exposure Details:
Lum 35X600 Bin1
Red 16X450 Bin2
Green 16X450 Bin2
Blue 27X450 Bin2
Total Time: 13.20 hours