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| M31
is located in the constellation Andromeda and is best observed in
November. Boasting an apparent magnitude of 3.1, the galaxy can be seen
with the naked eye, even in areas with moderate light pollution.
Because it is such an easily observed feature in the night sky, it is
impossible to say who discovered the Andromeda galaxy. However, Persian
astronomer Abd al-rahman al-Sufi’s The Book of Fixed Stars from the
year 964 contains the first known report of the object. Seestar S50, 114 min (10s) Bortle ~3/4 GraXpert - remove gradient Siril - color correction, stretch, star processing GIMP - light curve adjust CosmicClarity - sharpen, denoise | Rick Grieser | | The
Pinwheel Galaxy (Messier 101, NGC 5457) is a face-on spiral galaxy 21
million light-years away from Earth in the constellation Ursa Major. It
was discovered by Pierre Méchain in 1781 and was communicated that year
to Charles Messier, who verified its position for inclusion in the
Messier Catalogue as one of its final entries. Telescope: PlaneWave 12.5”,Camera: ASI2600MC Pro, 20 subs, 30 flats, 20 darks. | Gregg Bellman | | The
Pinwheel Galaxy (Messier 101, NGC 5457) is a face-on spiral galaxy 21
million light-years away from Earth in the constellation Ursa Major. It
was discovered by Pierre Méchain in 1781 and was communicated that year
to Charles Messier, who verified its position for inclusion in the
Messier Catalogue as one of its final entries. Telescope: EdgeHD 8”, Flattener/Reducer: 0.7 Focal Length: 1478m Camera: ASI2600MC Pro, 165 exposures of 300s, 4-15/16-2023. | Gregg Bellman | | Messier 83 or M83, also known as the Southern Pinwheel Galaxy
and NGC 5236, is a barred spiral galaxy approximately 15 million
light-years away in the constellation borders of Hydra and Centaurus.
Nicolas-Louis de Lacaille discovered M83 on 23 February 1752 at the
Cape of Good Hope. Telescope: PlaneWave 12.5", Focal Length: 2032
Camera: ASI2600MC Pro, 250 exposures of 120s on 4/11/2023. | Gregg Bellman | | M104, known as the Sombrero Galaxy
(NGC 4594) is a peculiar galaxy of unclear classification in the
constellation borders of Virgo and Corvus, being about 9.55 megaparsecs
from the Milky Way galaxy. It is a member of the Virgo II Groups, a
series of galaxies and galaxy clusters strung out from the southern
edge of the Virgo Supercluster. Telescope: PlaneWave 12.5", Focal Length: 2032 Camera: ASI2600MC Pro, 150 exposures of 180s on 4/22/2023. | Gregg Bellman | | Southern
portion of the Milky Way galaxy photographed with a Google Pixel 6 Pro
Phone with no other equipment. The Pixel's "night-sight" mode was used
with the "astrophotography" setting that automatically stacks images
taken over the course of four minutes (!). The Lagoon and Triffid
nebulae are visible along with Ptolemy's cluster, etc. Stars as faint
as magnitude 8.5 appears in the photograph | Steuart Dewar | | NGC 4565 (Needle
Galaxy) a spiral galaxy in Coma Berenices with smaller NGC 4562 at top
left. 16” RCOS and SBIG ST11000M camera with adaptive optics, 5hrs of luminance and 1 hour each of RGB. Processed in
Pixinsight. Also note IC 3571 (Mag. 17.52 irregular galaxy very close
on the right) and UGC 7778 (Mag. 13.65 Spiral Galaxy) off to right (at
right-angle from bottom of galaxy in image). | Ken Kattner | | M 63
(Sunflower Galaxy) in the constellation Canes Venatici,
using an Astro-Tech 12RCT @ F8.0 with an SBIG STT-8300 Camera, 1 red
(2x2bin) 800 Sec, 1 Green (2x2bin) 1200 Sec, 2 Blue (2x2bin)
totalling 2400 Sec, and 1 Luminance (2x2bin) @1200 Sec. Taken near
KerrVille, TX
on 5/21/2019. | Dick Bobick | | M 51 (Whirlpool
Galaxy with NGC 5195) in the constellation Canes Venatici, using an
Astro-Tech 12RCT @ F8.0 with an SBIG STT-8300 Camera, 2 red totalling
1200 Sec, 2 Green totalling 1800 Sec, 2 Blue totalling 3600 Sec, and
Luminance @1200 Sec. Taken near KerrVille, TX on 7/11/2018. | Dick Bobick | | NGC 5128 (Centaurus A in the Constellation Centaurus). Using an AP Starfire
160@F7.5 with an SBIG STT-8300 Camera. 1 Red @600s, 1 Green @900s, 2 Blue,
totalling 1500s, and 1 Luminance @900s. Taken near Kerrville, TX on 6/13/2018. | Dick Bobick | | M64 (Black Eye Galaxy) in the Constellation Coma Berenices. Using an Astro-Tech
12 RCT @ F8.0 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green
#1200s, 2 Blue totalling 2400s, and 1 Luminance Totalling 1200s. Taken
near Kerrville, TX on 5/10/2018. | Dick Bobick | | M83 (Southern Pinwheel Galaxy) in the Constellation Hydra. Using an Astro-Tech
12 RCT @ F8.0 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green
#1200s, 2 Blue totalling 2400s, and 1 Luminance Totalling 1200s. Taken
near Kerrville, TX on 5/7/2018. | Dick Bobick | | M104 (Sombrero Galaxy) in the Constellation Virgo. Using an Astro-Tech
12 RCT @ F8.0 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green
#1200s, 2 Blue totalling 2400s, and 1 Luminance Totalling 1200s. Taken
near Kerrville, TX on 4/16/2018. | Dick Bobick | | NGC 253 (Sculptor Galaxy) in the Constellation Sculptor. Using an AP
Starfire 160@F7.5 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green
@1200s, 2 Blue, totalling 2400s, and 1 Luminance @1200s. Taken near
Kerrville, TX on 10/17/2017. | Dick Bobick | | M101 (Pinwheel Galaxy) in the Constellation Ursa Major. Using an AP
Starfire 160@F7.5 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green
@1200s, 2 Blue, totalling 2400s, and 2 Luminance totalling 2400s. Taken
near Kerrville, TX on 8/18/2017. | Dick Bobick |
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Images of the Antennae Galaxies (NGC 4038 and NGC 4039) were taken over
a two year period (2015-2016) and required a total of 16.25 hours of
exposure. Specifically, 390 minutes of luminance and 195 minutes of
RGB each. |
Ken Kattner |
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