Image Description and Details :

The Bear Claw Nebula Sh2-200 is a very low brightness planetary Nebula discovered by Stuart Sharpless and incorporated into his catalog in 1959, although it wasn't until 2017 that it was spectroscopically confirmed as a planetary nebula!Planetary Nebulae are so called because to astronomers in years past, they looked disc-like, like a planet!.They are actually the remnants of a star reaching the end of its life and exploding into space, its outer layers, this will be the fate, one day of our sun.This is a very highly evolved and ancient planetary nebula.Someone has to call these objects, to me it looks more like a snow globe set adrift in a sea of glowing hydrogen ( that's the red background)Another fact that makes this image interesting is the halo of ionized Hydrogen gas that surrounds it. This is thought not to be linked to the planetary nebula, but the result of the extremely hot remnant star at its center ionizing the surrounding interstellar hydrogen.Tech stuffLocation: Animas, NMScope : Planewave CDK14Mount : Planewave L-350Camera : ZWO 6200 Mm Pro HOO ImageHa (Antlia 4.5nm) 25 x30 mins, OIII (Antlia 4.5nm) 25x30minsTotal Integration time 25 hoursProcessed in Pixinsight and PS

Copyright: Richard Whitehead 2022

Image Description and Details :

This extremely faint planetary nebula was first discovered by an American astronomer Stewart Sharpless in 1959. He included it in his catalogue of HII regions with an identification Sh2-200. Later in 1983 it was included in the HDW catalogue of possible planetary nebulae by the astronomers Herbert Hartl, Johann Dengel and Ronald Weinberger. In 2017 spectra of this object was taken by other professional astronomers and this verified their observations, confirming that this was indeed a planetary nebula.Data is acquired from my own remote observatory in central Finland using SkyWatcher Esprit 100mm f/5.5, ZWO ASI1600MM-C, EQ6 guided with ASI224MC as finder-guider, Baader narrowband filters and TS Optics RGB filters.Ha: 36x300s, OIII 120x300s, R/G/B 10x120s each. Total integration time is 14 hours.



Copyright: © Ville Miettinen