The Rosette Nebula, which is known as the Satellite cluster, which is seen in the constellation Monoceros, contains the open cluster NGC 2244. Many of the stars in this cluster are O-type stars, which are extremely hot stars that produce a lot of radiation and stellar wind.
This cluster's age has been calculated to be under 5 million years. The foreground K-class massive star 12 Monocerotis is the brightest in the cluster. The two brightest stars in the cluster are HD 46223, whose spectral type is O4V and is 400,000 times brighter than the Sun while being about 50 times more massive, and HD 46150, whose spectral type is O5V and is up to 60 times more massive while being a double star.
This cluster's age has been calculated to be under 5 million years. The foreground K-class massive star 12 Monocerotis is the brightest in the cluster. The two brightest stars in the cluster are HD 46223, whose spectral type is O4V and is 400,000 times brighter than the Sun while being about 50 times more massive, and HD 46150, whose spectral type is O5V and is up to 60 times more massive while being a double star.
The Monoceros region of the Milky Way Galaxy contains the Rosette Nebula, sometimes called Caldwell 49, which is an H II region situated close to one end of a massive molecular cloud. The open cluster NGC 2244 (Caldwell 50), whose stars were created from the nebula's matter, is intimately related to the nebulosity. The nebula is frequently referred to as the "Skull Nebula" since it has been reported to have a shape like a human skull. It should not be confused with NGC 246, often known as the "Skull Nebula," which is a different object.
The cluster and nebula are 130 lightyears across and are about 5,000 light-years away from Earth. The emission nebula that we see is a result of the atoms in the nebula being excited by the radiation from the young stars and emitting radiation as a result. The nebula is thought to be 10,000 solar masses in mass. The optical Rosette Nebula and a dense molecular cloud are home to many newly born stars, according to a Chandra X-ray Observatory investigation of the nebula. The huge O-type stars HD 46223 and HD 46150, which are principally responsible for blowing the ionisation bubble, are among the complex's estimated 2500 young stars. The dense molecular cloud to the southeast of the bubble is where most of the current star formation activity occurs. |
My Image was taken at my usual location with the following equipment;
The Picture so far is 28 minutes overall data at 120 sub-exposure. The picture was stacked using Deep Sky Stacker (DSS) and processed in PixInsight (PI). Further exposure time on this target is a must but the current data is an eye opener to the possibility of this target.
Stay tuned for further data on this target!
- Scope – Celestron RASA 8
- Mount - Skywatcher EQ6 R Pro
- Guide scope – ZWO 30mm
- Guide Camera – ZWO ASI 120mm mini
- Main Camera – ZWO Asi 533mc Pro
- Control box – ZWO ASIAIR Pro
- Filter – IDAS NBZ Nebula Booster 2”
- Starizona Filter drawer next to the camera sensor
- Fox Halo 96k power bank
- Dew heater with its own power bank on the guide scope
The Picture so far is 28 minutes overall data at 120 sub-exposure. The picture was stacked using Deep Sky Stacker (DSS) and processed in PixInsight (PI). Further exposure time on this target is a must but the current data is an eye opener to the possibility of this target.
Stay tuned for further data on this target!
With additional data on this target the picture has a lot more detail. an extra hour was collected with the intention to stack it with the other 30- minutes which was collected previously. Sadly this never happened..
Stacking all the data, I forgot I removed the retaining ring and the angle of the camera was slightly different. leaving artefacts in all four corners of the picture. So the original 30 minutes was removed leaving the newer hour was used in the following picture. The sub-exposure times was reduced to 60 secs over the 120 secs above.
Several sub-exposures was also removed due to low scores from DSS, this will be due to cloud cover. The night this was taken cloud cover was hit and miss for the first few hours (multiple targets was taken through the night), so overall the target is about 54minutes using the setup above with the only difference of the ring heater was installed on my scope and used to due to dew becoming more of an issue.
I followed my normal processing procedure I use when processing which a guide will be produced soon.
Stacking all the data, I forgot I removed the retaining ring and the angle of the camera was slightly different. leaving artefacts in all four corners of the picture. So the original 30 minutes was removed leaving the newer hour was used in the following picture. The sub-exposure times was reduced to 60 secs over the 120 secs above.
Several sub-exposures was also removed due to low scores from DSS, this will be due to cloud cover. The night this was taken cloud cover was hit and miss for the first few hours (multiple targets was taken through the night), so overall the target is about 54minutes using the setup above with the only difference of the ring heater was installed on my scope and used to due to dew becoming more of an issue.
I followed my normal processing procedure I use when processing which a guide will be produced soon.