The Full Image - M15 & NGC 7094
Crop - NGC 7094
Messier 15 or M15 (also designated NGC 7078 and sometimes known as the Great Pegasus Cluster) is a globular cluster in the constellation Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Charles Messier's catalogue of comet-like objects in 1764. At an estimated 12.5±1.3 billion years old, it is one of the oldest known globular clusters.
M 15 is about 35,700 light-years from Earth and 175 light-years in diameter. It has an absolute magnitude of −9.2, which translates to a total luminosity of 360,000 times that of the Sun. Messier 15 is one of the most densely packed globular clusters known in the Milky Way galaxy. Its core has undergone a contraction known as "core collapse" and it has a central density cusp with an enormous number of stars surrounding what may be a central black hole.
Home to over 100,000 stars, the cluster is notable for containing a large number of variable stars (112) and pulsars (8), including one double neutron star system, M15-C. It also contains Pease 1, the first planetary nebula discovered within a globular cluster in 1928. Just three others have been found in globular clusters since then.
NGC 7094 is a Planetary Nebula in the Pegasus constellation. NGC 7094 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres at certain times of the year. Given its visual magnitude of 13.4, NGC 7094 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.
This was a target picked for convenience - in a good position in the sky while I waited for my main target to rise. Although I was collecting data from Mid-Oct to well into Nov; there were very few good nights for getting data. It has ended up way different from what I intended - but I thought it still worthwhile (even at low quality) to post on my web site.
Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera: QHY 5L II M
Focal Extender / Reducer: 0.73X
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters: Astrodon Ha (3nm), Astrodon OIII (3nm), Astrodon LRGB.
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur.
Dates: 15th Oct. - 21st Nov. 2025
Frames: (Total)
Astrodon Ha 36 x 600"
Astrodon OIII 90 x 600"
Astrodon LRGB 4 x 60 x 60"
Total integration = 25 Hours .
Center (RA, Dec): (323.332, 12.482)
Center (RA, hms): 21h 33m 19.665s
Center (Dec, dms): +12° 28' 56.237"
Size: 2.72 x 1.81 deg
Radius: 1.635 deg
Pixel scale: 1.63 arcsec/pixel.
"Orientation": Up is 234.2 degrees E of N
M 15 is about 35,700 light-years from Earth and 175 light-years in diameter. It has an absolute magnitude of −9.2, which translates to a total luminosity of 360,000 times that of the Sun. Messier 15 is one of the most densely packed globular clusters known in the Milky Way galaxy. Its core has undergone a contraction known as "core collapse" and it has a central density cusp with an enormous number of stars surrounding what may be a central black hole.
Home to over 100,000 stars, the cluster is notable for containing a large number of variable stars (112) and pulsars (8), including one double neutron star system, M15-C. It also contains Pease 1, the first planetary nebula discovered within a globular cluster in 1928. Just three others have been found in globular clusters since then.
NGC 7094 is a Planetary Nebula in the Pegasus constellation. NGC 7094 is situated close to the celestial equator and, as such, it is at least partly visible from both hemispheres at certain times of the year. Given its visual magnitude of 13.4, NGC 7094 is visible with the help of a telescope having an aperture of 10 inches (250mm) or more.
This was a target picked for convenience - in a good position in the sky while I waited for my main target to rise. Although I was collecting data from Mid-Oct to well into Nov; there were very few good nights for getting data. It has ended up way different from what I intended - but I thought it still worthwhile (even at low quality) to post on my web site.
Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera: QHY 5L II M
Focal Extender / Reducer: 0.73X
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters: Astrodon Ha (3nm), Astrodon OIII (3nm), Astrodon LRGB.
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur.
Dates: 15th Oct. - 21st Nov. 2025
Frames: (Total)
Astrodon Ha 36 x 600"
Astrodon OIII 90 x 600"
Astrodon LRGB 4 x 60 x 60"
Total integration = 25 Hours .
Center (RA, Dec): (323.332, 12.482)
Center (RA, hms): 21h 33m 19.665s
Center (Dec, dms): +12° 28' 56.237"
Size: 2.72 x 1.81 deg
Radius: 1.635 deg
Pixel scale: 1.63 arcsec/pixel.
"Orientation": Up is 234.2 degrees E of N
Sky map & Finding Chart
Annotated Images
