Starship Asterisk*

markh@tds.net wrote: ↑Tue Jan 01, 2019 11:19 pm NGC 40-planetary nebula and CTA1-super nova remnant

Copyright: Mark Hanson

NGC40-P1Websmallapod.jpg

This was a really challenging image to process, the background super nova remnant is very faint and took allot to get it to stand out in the background of all those stars. This is the first frame of what is to be at least a 9 frame mosaic that may take a few years!

Here is a nice description by "Sakib Rasool"

"NGC 40 is a bright planetary nebula consisting of a detailed core with an outer halo. This halo consists of a double structure with a diffuse inner halo attached to the central shell and a more irregular filamentary structure, which extends to the north. In addition to these array of features is a structure to the south, which has been interpreted as a jet. Professional observations with the Spitzer infrared telescope have shown the inner halo to consist of multiple overlapping radial spoke ring structures. This halo was discovered in 1987.
The central star of this planetary nebula has been well studied by professional astronomers and is also interesting in its own right. It belongs to the Wolf Rayet subclass of planetary nebula central stars that are hydrogen deficient and exhibit high mass loss rates and strong stellar winds. WR type central stars have been identified in a number of other planetary nebulae including IC 4663 and Abell 48.
Extending along the contours of the full field of this image are multiple colorful filaments belonging to the large faint supernova remnant CTA 1, which covers an area of 1.5 degrees across the sky. Both NGC 40 and CTA 1 are physically unrelated with the supernova remnant lying more distant in the background. NGC 40 is 3500 light years away and CTA 1 is 4500 light years away."

Full Image can be found here: https://www.hansonastronomy.com/ngc-40cta1

Thank you,
Mark Hanson

tango33 wrote: ↑Wed Jan 02, 2019 1:41 am Hi,

Here is a sight not seen usually:
The Homunculus Nebula in Carina

Please see the full resolution image here:
http://www.pbase.com/tango33/image/168598845/original

And the full frame:
http://www.pbase.com/tango33/image/168600127/original

Happy new year!

Kfir Simon

Click to view full size image

Click to view full size image

Ann wrote: ↑Wed Jan 02, 2019 7:24 am

markh@tds.net wrote: ↑Tue Jan 01, 2019 11:19 pm NGC 40-planetary nebula and CTA1-super nova remnant

Copyright: Mark Hanson

NGC40-P1Websmallapod.jpg

This was a really challenging image to process, the background super nova remnant is very faint and took allot to get it to stand out in the background of all those stars. This is the first frame of what is to be at least a 9 frame mosaic that may take a few years!

Here is a nice description by "Sakib Rasool"

"NGC 40 is a bright planetary nebula consisting of a detailed core with an outer halo. This halo consists of a double structure with a diffuse inner halo attached to the central shell and a more irregular filamentary structure, which extends to the north. In addition to these array of features is a structure to the south, which has been interpreted as a jet. Professional observations with the Spitzer infrared telescope have shown the inner halo to consist of multiple overlapping radial spoke ring structures. This halo was discovered in 1987.
The central star of this planetary nebula has been well studied by professional astronomers and is also interesting in its own right. It belongs to the Wolf Rayet subclass of planetary nebula central stars that are hydrogen deficient and exhibit high mass loss rates and strong stellar winds. WR type central stars have been identified in a number of other planetary nebulae including IC 4663 and Abell 48.
Extending along the contours of the full field of this image are multiple colorful filaments belonging to the large faint supernova remnant CTA 1, which covers an area of 1.5 degrees across the sky. Both NGC 40 and CTA 1 are physically unrelated with the supernova remnant lying more distant in the background. NGC 40 is 3500 light years away and CTA 1 is 4500 light years away."

Full Image can be found here: https://www.hansonastronomy.com/ngc-40cta1

Thank you,
Mark Hanson

That's a fascinating image and a startling (apparent) conjunction: A planetary nebula seemingly (but not really) "inside" a supernova remnant!

I admire your own dedication and hard work as much as I admire the beautiful and intricate image.

Ann

Ann wrote: ↑Wed Jan 02, 2019 7:24 am

markh@tds.net wrote: ↑Tue Jan 01, 2019 11:19 pm NGC 40-planetary nebula and CTA1-super nova remnant

Copyright: Mark Hanson

NGC40-P1Websmallapod.jpg

This was a really challenging image to process, the background super nova remnant is very faint and took allot to get it to stand out in the background of all those stars. This is the first frame of what is to be at least a 9 frame mosaic that may take a few years!

Here is a nice description by "Sakib Rasool"

"NGC 40 is a bright planetary nebula consisting of a detailed core with an outer halo. This halo consists of a double structure with a diffuse inner halo attached to the central shell and a more irregular filamentary structure, which extends to the north. In addition to these array of features is a structure to the south, which has been interpreted as a jet. Professional observations with the Spitzer infrared telescope have shown the inner halo to consist of multiple overlapping radial spoke ring structures. This halo was discovered in 1987.
The central star of this planetary nebula has been well studied by professional astronomers and is also interesting in its own right. It belongs to the Wolf Rayet subclass of planetary nebula central stars that are hydrogen deficient and exhibit high mass loss rates and strong stellar winds. WR type central stars have been identified in a number of other planetary nebulae including IC 4663 and Abell 48.
Extending along the contours of the full field of this image are multiple colorful filaments belonging to the large faint supernova remnant CTA 1, which covers an area of 1.5 degrees across the sky. Both NGC 40 and CTA 1 are physically unrelated with the supernova remnant lying more distant in the background. NGC 40 is 3500 light years away and CTA 1 is 4500 light years away."

Full Image can be found here: https://www.hansonastronomy.com/ngc-40cta1

Thank you,
Mark Hanson

That's a fascinating image and a startling (apparent) conjunction: A planetary nebula seemingly (but not really) "inside" a supernova remnant!

I admire your own dedication and hard work as much as I admire the beautiful and intricate image.

Ann

kokehtz wrote: ↑Wed Jan 02, 2019 9:23 am Andromeda Clouds
Website: www.aipastroimaging.com
Copyright: Álvaro Ibáñez Pérez

More information and photos in my section of the website:
https://aipastroimaging.com/m31-ha-clouds-hargb/

Full resolution:
https://aipastroimaging.com/wp-content/ ... al_AIP.jpg

Click to view full size image

starsurfer wrote: ↑Wed Jan 02, 2019 5:27 pm This needs to be a mosaic!!

kokehtz wrote: ↑Wed Jan 02, 2019 6:45 pm

starsurfer wrote: ↑Wed Jan 02, 2019 5:27 pm This needs to be a mosaic!!

Hi!

This year impossible... I need another 23 hours more exposure I have taken 6 nights, without an observatory and it's very difficult. The FOV is like that

clear skies