Sunday, November 24, 2019

IC 410, NGC 1893, and the Tadpoles - in Ha

Wow two images on Astrobin within 24 hours - look out Gary Imm.  I am working on projects but don't know when I will finish them - weather, FOV, and I have to get up early for work.  This object (IC 410, the nebula, NGC 1893, the star cluster, and the Tadpoles) does not clear the trees until 11:30 as of this posting.  Again, I did minimal processing - ABE and a slight curves adjustment.  For 30 minutes I was quite happy.  I have wanted to do the Tadpoles in particular for a long time but waited until I got equipment capable of producing a decent image. I don't expect this to done until mid-December if not later.  - Cheers Kurt



IC 410, NGC 1893, and the Tadpoles
Home Monroe, CT
Date: 11-16-19
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm
f/7
Focal Reducer: Astro-Tech 0.8x Focal Reducer/Field Flattener for Refractor Telescopes
Mount: Orion Sirius
Filter Wheel: ZWO EFW 8 x 1.25"
Filter: ZWO Ha
Focuser: ZWO EAF
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: Ha 11 x 180s
Gain: 139
Offset 21
Temp: -2 C
Post Processing: PixInsight, Photoshop
https://kurtzeppetello.smugmug.com/
http://astroquest1.blogspot.com/
http://youtube.com/c/AstroQuest1

Saturday, November 23, 2019

NGC 1333 - Embryo Nebula - Luminosity

I am working on projects but don't know when I will finish the Embryo so I decided to post it as a work in progress.  I did minimal processing in PixInsight and will post a more informative introduction once I am done.  Infact, this is only 1.5 hrs of luminosity so I plan to get more luminosity. 



NGC 1333 - Embryo Nebula 
Home Monroe, CT
Date: 11-22-19
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm
f/7
Focal Reducer: Astro-Tech 0.8x Focal Reducer/Field Flattener for Refractor Telescopes
Mount: Orion Sirius
Filter Wheel: ZWO EFW 8x 1.25"
Filter: ZWO Luminosity
Focuser: ZWO EAF
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: L 59 x 90s
Gain: 139
Offset 21
Temp: 2 C
Post Processing: PixInsight, Photoshop
https://kurtzeppetello.smugmug.com/
http://astroquest1.blogspot.com/
http://youtube.com/c/AstroQuest1

Friday, November 15, 2019

M74 - The Phantom Galaxy

M74 (a.k.a. NGC 628 or the Phantom Galaxy) is a beautiful face-on spiral galaxy in Pisces is located about 32 million light-years away.  At about 100 billion stars and 95,000 light-years across it is slightly less than the size of our own galaxy.  The spiral arms of are particularly well developed and contain clusters of young blue stars and many star-forming nebulae.

This image is infinitely better than my previous from three years ago where half of the spiral arms were missing but it would have been better had all of the exposures been used.  As it turned out the 2.5 hrs of luminosity was either not focused well or the the sky conditions were not as good as they appeared or both, in any case I did not use it.  As a result processing was even more creative than normal.  The R, G, B was great so I kept that and made a synthetic luminosity layer in PI and did a 50% combination with it.  I then did a 20% combination of Ha into the red channel in order to enhance the Ha regions in the outer spiral arms.

I did not get all the detail I had hoped for but am happy with what I did get all things considered.  The stars were colorful as was the galaxy .  


M74 - Phantom Galaxy
Home Monroe, CT
Date: 11-1-19, 11-2-19, 11-3-19, 11-6-19
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm
f/7
Focal Reducer: Astro-Tech 0.8x Focal Reducer/Field Flattener for Refractor Telescopes
Mount: Orion Atlas Pro
Filter Wheel: ZWO EFW 8x 1.25"
Filter: ZWO Ha, R, G, B
Focuser: ZWO EAF
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: Ha 50 x 180s, R 49 x 90s, G 48 x 90s, B 54 x 90s
Gain: 139
Offset 21
Temp: 2 C
Post Processing: PixInsight, Photoshop
https://kurtzeppetello.smugmug.com/
http://astroquest1.blogspot.com/
http://youtube.com/c/AstroQuest1

Saturday, November 2, 2019

Deer Lick Group & Stephan's Quintet

The Deer Lick group, located on the lower left, consists of the large dusty spiral galaxy NGC 7331 approximately 40 million light-years away.  It is thought to to be a twin of our own Milky Way galaxy.  Also, the central bulge rotates in the opposite direction of the spiral arms.  Several other smaller galaxies, just below the NGC 7331, are about ten times farther.  Gary Imm describes the strange name coming from an amateur astronomer observing at the Deer Lick Gap in North Carolina.

Stephan's Quintet, located on the upper right, consists of four gravitationally interacting galaxies about 200 million light-years away.  The fifth galaxy, NGC 7320, is only 40 million light years away, thus is not interacting with the other four galaxies. It is pretty easy to identify as it is blue and is only one not to be distorted.

I was hoping to get more detail, what a surprise - who isn't, but was happy with what I obtained.  I had guiding issues on the first night of imaging when I got the Luminosity and Red and the exposures it looked fine but when imaged the Green and Blue on second night, it was apparent that the first night was not as good.  It looked clear out side and it seemed focused but there may have been some mist.  Processing went smooth and it was fun to work on galaxies again. These galaxies are relatively small so I cropped them quite a bit, a larger scope would be preferable for these objects.


Deer Lick Group (NGC 7331) & Stephan's Quintet 
Home Monroe, CT
Date: 10-23-19, 10-24-19
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm
f/7
Focal Reducer: Astro-Tech 0.8x Focal Reducer/Field Flattener for Refractor Telescopes
Mount: Orion Atlas Pro
Filter Wheel: ZWO EFW 8x 1.25"
Filter: ZWO L, R, G, B
Focuser: ZWO EAF
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: L 99 x 90s, R 59 x 90s, G 41 x 90s, B 59 x 90s
Gain: 139
Offset 21
Temp: 12 C
Post Processing: PixInsight, Photoshop
https://kurtzeppetello.smugmug.com/
http://astroquest1.blogspot.com/
http://youtube.com/c/AstroQuest1