Above: Subtle improvements with new software in May 2023. (Below: The 2019 rendition).
NGC 4565
NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices. It lies close to the North Galactic Pole and has a visual magnitude of approximately 10. It is known as the Needle Galaxy for its narrow profile. First recorded in 1785 by William Herschel, it is a prominent example of an edge-on spiral galaxy.
It is a giant spiral galaxy more luminous than the Andromeda Galaxy. Much speculation exists in literature as to the nature of the central bulge. In the absence of clear-cut dynamical data on the motions of stars in the bulge, the photometric data alone cannot adjudge among various options put forth. However, its exponential shape suggested that it is a barred spiral galaxy. Studies with the help of the Spitzer Space Telescope not only confirmed the presence of a central bar but also showed a pseudo-bulge within it as well as an inner ring. NGC 4565 has at least two satellite galaxies, one of which is interacting with it. It has a population of roughly 240 globular clusters, More than the Milky Way.
NGC 4565 is one of the brightest member galaxies of the Coma I Group
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon LRGB
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 3095 x 2137
Dates: 25th Mar 2019
Frames:
Astrodon L 18 x 5' + 15 x 2'
Astrodon R 12 x 5'
Astrodon G 12 x 5'
Astrodon B 12 x 5'
Total integration = 5 hours.
Center (RA, Dec):(189.075, 26.002)
Center (RA, hms):12h 36m 17.980s
Center (Dec, dms):+26° 00' 06.574"
Size:50.9 x 35.1 arcmin
Radius:0.515 deg
Pixel scale:0.986 arcsec/pixel
Orientation:Up is 179 degrees E of N
It is a giant spiral galaxy more luminous than the Andromeda Galaxy. Much speculation exists in literature as to the nature of the central bulge. In the absence of clear-cut dynamical data on the motions of stars in the bulge, the photometric data alone cannot adjudge among various options put forth. However, its exponential shape suggested that it is a barred spiral galaxy. Studies with the help of the Spitzer Space Telescope not only confirmed the presence of a central bar but also showed a pseudo-bulge within it as well as an inner ring. NGC 4565 has at least two satellite galaxies, one of which is interacting with it. It has a population of roughly 240 globular clusters, More than the Milky Way.
NGC 4565 is one of the brightest member galaxies of the Coma I Group
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon LRGB
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 3095 x 2137
Dates: 25th Mar 2019
Frames:
Astrodon L 18 x 5' + 15 x 2'
Astrodon R 12 x 5'
Astrodon G 12 x 5'
Astrodon B 12 x 5'
Total integration = 5 hours.
Center (RA, Dec):(189.075, 26.002)
Center (RA, hms):12h 36m 17.980s
Center (Dec, dms):+26° 00' 06.574"
Size:50.9 x 35.1 arcmin
Radius:0.515 deg
Pixel scale:0.986 arcsec/pixel
Orientation:Up is 179 degrees E of N
Sky Map
Annotated Image
