Supernova Remnant
CTA-1 & NGC 40
Our version of CTA-1 & NGC 40 with the whole AstroFleet team. The data were acquired with our setup (TS-Optics CF-APO 155mm & ASI2600MM Pro) hosted at PixelSkies, Spain. Astrobin version here.
In the constellation of Cepheus lies the planetary nebula NGC 40, also known as Caldwell 2, surrounded by CTA-1 (SNR 119.5+10.2), a faint remnant of a supernova.
NGC 40 is located at a distance of about 3500 light-years and is approximately 4500 years old. A white dwarf, with a solar mass of 0.7, resides at the center of this nebula. The extensive structures surrounding NGC 40 correspond to CTA-1, a vast complex, the remnant of a supernova. Estimates suggest a distance of about 4600 light-years and an age of about 10000 years for CTA-1.
Processing this image was challenging. Our goal was to maximize the visibility of CTA-1's filaments, requiring long hours of exposure. NGC 40, on the other hand, was processed differently, with shorter exposures to highlight its core.
Narrowband (HOO) version: H-Alpha mapped to red, OIII mapped to blue and OIII+Ha mapped to the green channel. While the colors in this image are not the true colors, the narrowband filters were used to create the nebula color.
TECHNICAL DATA
ACQUISITION DETAILS
OPTICS TS-Optics CF-APO 155mm @ F/8
CAMERA ZWO ASI2600MM Pro
MOUNT iOptron CEM70
FILTERS Ha, OIII, SII, L, R, G, B
LOCATION PixelSkies, Castilléjar, Granada, Andalucia, Spain
DATE December 2023
EXPOSURES 60.3 hours (Ha 195 x 600 sec, OIII 155 x 600 sec & OIII 120 x 60sec)
PROCESSING SOFTWARE Pixinsight, CCDstack, Photoshop
COPYRIGHTS Team AstroFleet
TARGET DETAILS
RA 00h 09m 49.9s
DEC +72° 33' 17.7"
SIZE 1.3 x 1.01 deg
ORIENTATION Up is 181.8 degrees E of N
CONSTELLATION Cepheus