SH2-174 - Valentine Rose Nebula
SH2-174 - A planetary nebula located in the constellation Cepheus at a distance of 980 light-years.
A planetary nebula is created when a low-mass star blows off its outer layers at the end of its life. The core of the star remains and is called a white dwarf. Usually, the white dwarf can be found very near the centre of the planetary nebula, but in the case of Sh2-174, it is off – to the top right of the nebula in this image. (It is the blue star near the centre of the blue gas). This asymmetry is due to the planetary nebula's interaction with the interstellar medium that surrounds it.
Or so it seems! But this piece makes for interesting reading also: ( * The link is to a safe external web site)
https://www.sternwarte-baerenstein.de/sh2-174-en.html
Imaging telescopes: Takahashi FSQ130ED
Imaging cameras: ASI 2600mm
Mounts: JTW Trident P75
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 & Photoshop
Filters: Astrodon Ha (3nm), OIII (3nm) & Astrodon RGB.
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW3, RB Focus Gaius, RB Focus Excalibur.
Original Resolution: 4500 x 3000
Dates: 10th Nov to 18th Nov 2023
Frames:
Astrodon Ha 60 x 10'
Astrodon OIII 60 x 10'
Astrodon RGB 3 x 20 x 2'
Total integration = 22 hours.
Center (RA, Dec): (356.496, 81.005)
Center (RA, hms): 23h 45m 58.971s
Center (Dec, dms): +81° 00' 17.832"
Size: 89.7 x 59.8 arcmin
Radius: 0.898 deg
Pixel scale: 1.2 arcsec/pixel
Orientation: Up is 47.1 degrees E of N
A planetary nebula is created when a low-mass star blows off its outer layers at the end of its life. The core of the star remains and is called a white dwarf. Usually, the white dwarf can be found very near the centre of the planetary nebula, but in the case of Sh2-174, it is off – to the top right of the nebula in this image. (It is the blue star near the centre of the blue gas). This asymmetry is due to the planetary nebula's interaction with the interstellar medium that surrounds it.
Or so it seems! But this piece makes for interesting reading also: ( * The link is to a safe external web site)
https://www.sternwarte-baerenstein.de/sh2-174-en.html
Imaging telescopes: Takahashi FSQ130ED
Imaging cameras: ASI 2600mm
Mounts: JTW Trident P75
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 & Photoshop
Filters: Astrodon Ha (3nm), OIII (3nm) & Astrodon RGB.
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW3, RB Focus Gaius, RB Focus Excalibur.
Original Resolution: 4500 x 3000
Dates: 10th Nov to 18th Nov 2023
Frames:
Astrodon Ha 60 x 10'
Astrodon OIII 60 x 10'
Astrodon RGB 3 x 20 x 2'
Total integration = 22 hours.
Center (RA, Dec): (356.496, 81.005)
Center (RA, hms): 23h 45m 58.971s
Center (Dec, dms): +81° 00' 17.832"
Size: 89.7 x 59.8 arcmin
Radius: 0.898 deg
Pixel scale: 1.2 arcsec/pixel
Orientation: Up is 47.1 degrees E of N
Sky Map & Finding Chart
Ha, OIII & RGB in the image:
Annotated Image (Click on image to enlarge):
