Images

Comet NEOWISE in the Morning Sky

Comet NEOWISE on July 9, 2020. 20 seconds of exposure using 8×2 sec and 1×4 sec sub-images. Canon T3 at ISO 400, Sigma 28-70 Zoom at 70mm, F/4. Camera on tripod. Taken from a metro location with Bortle 7 red zone light pollution levels.

Clear skies, but muggy and lots of muck to shoot through with it that low. It was the clearest morning so far since the comet became visible. That’s a dirt pile in the foreground, btw and not a mountain. LoL!

Below is an image that is a reprocess job on the data with a different color balance, slightly more sub-images and tighter cropping.   I also did dark and offset calibration to try and reduce noise.

I was hoping it would come out better than the first one, but since conditions were sub-par to begin with,  I guess I will just have to wait until it gets in the evening skies to get a better shot.  Oh, well…

Comet NEOWISE on July 9, 2020. 48 seconds of exposure using 14×2 sec and 5×4 sec sub-images. Canon T3 at ISO 400, Sigma 28-70 Zoom at 70mm, F/4. Camera on tripod. Taken from a metro location with Bortle 7 red zone light pollution levels.

Imaging Session June 20th, 2020

M22 Globular Cluster. Taken on Jun 20, 2020. 60×15 sec, QHY183c at -15C cooling, Gain 42, Offset 100, Baader UHC-S filter, Televue TV-85 at F/5.6, Atlas EQ-G w/EQMOD. SharpCap 3.2 LiveStacking and PHD2 Guiding with dithering on. Metro area Bortle Red Zone, below average transparency.
M22 Combined Data to Date with Jun 20, 2020 data as a base.
Ring Nebula – M57. Taken on Jun 20, 2020. 48×15 sec, QHY183c at -15C cooling, Gain 42, Offset 100, Baader UHC-S filter, Televue TV-85 at F/5.6, Atlas EQ-G w/EQMOD. SharpCap 3.2 LiveStacking and PHD2 Guiding with dithering on. Metro area, Bortle Red Zone, below average transparency .

Friday night, Jun 19th, 2020 was warm and muggy and clouds persisted till after 9:00 PM.  It was predicted to clear, so I went to bed early and woke up just before 2:00 AM and setup my scope then.  It was clear, but the transparency was poor and the humidity was still high.

I managed to get a decent amount of data on two objects, and I also peeked at 2 or 3 other things in between.   M22, the globular cluster in the first image, was a secondary target and I really wanted to get the Omega Nebula and the Trifid Nebula nearby.  My narrow window to image them was so small, however.  Trees and streetlights were in the way.   By the time I was ready to shoot, that area had moved out of position.

I had imaged M22 a few times, but with other scopes.  I took all the data I had on it and recombined it to produce the 2nd image above.  It is data from an 8″ Schmidt-Newt and a 6″ Schmidt-Newt, along with the data from the first image above.

The Ring Nebula was a quick peek that turned into a usable image.  The full size image is a crop at 100% resolution of the central area.  I was hoping to pick up that galaxy that is nearby to the Ring, but 48×15 sec sub-images wasn’t enough to bring it out.

However, I did have a stack of 34×30 sec sub-images taken in March that I blended this night’s data with and now you can see it, just barely,  above and slightly left of the ring.   Check it out:

Ring Nebula – M57. Taken on Mar 7 and Jun 20, 2020. 34×30 sec and 48×15 sec, QHY183c at -15C cooling, Gain 42, Offset 100, Baader UHC-S filter, Televue TV-85 at F/5.6, Atlas EQ-G w/EQMOD. SharpCap 3.2 LiveStacking and PHD2 Guiding with dithering on. Metro area, Bortle Red Zone, below average transparency .

It looks like I need to get out of the big city to get the summertime nebulae targets like Omega and the Trifid.  Late June and early July sometimes has clear skies and hopefully I’ll be lucky and get to a dark sky site before too long.

The Crescent Nebula From a Metro Area

The Crescent Nebula. 433×15 sec (1.8 hrs,) Gain 42, Offset 33, QHY183c at -15C, UHC-S filter, Televue TV-85 at F/5.6.

I think the last time I shot this was in 2014.   This would be the first time imaging it with my new QHY183c camera.   Not too bad for only 1.8 hours of exposure.  Plus, it was very short 15 second sub-images, which kept the stars nice and tight.

The Jet from the Black Hole in the M87 Galaxy!

M87 Galaxy Showing Jet from Black Hole at its center. 14×240 sec, Gain 11, Offset 31, QHY183c cooled to -13C, UHC-S filter, Televue TV-85 at F/5.6, SharpCap 3.2.

I’ve tried this before with little success, but this time the jet of M87 shows quite well in this nearly 1 hour exposure.  The amount of energy to shoot out a jet this long is enormous!

M87 Galaxy Showing Jet from Black Hole at its center. 14×240 sec, Gain 11, Offset 31, QHY183c cooled to -13C, UHC-S filter, Televue TV-85 at F/5.6, SharpCap 3.2.  Detail Crop.

It even shows the characteristic blue color of the synchrotron radiation of electrons spiraling in a magnetic field.

Supernova in M61! Another M13 Globular Shot, Too.

Supernova SN2020jfo in M61. 248×30 sec, Gain 30, Offset 31, Bin 2, QHY183c at -10C, UHC-S filter, Televue TV-85 at F/5.6. Detail Crop.
Supernova SN2020jfo in M61. 248×30 sec, Gain 30, Offset 31, Bin 2, QHY183c at -10C, UHC-S filter, Televue TV-85 at F/5.6.  Full field view.

 

I imaged the galaxy above and the globular below on Sunday, May 10, 2020.  Very nice weather that day and a pretty good evening, too.   Being I had to work the next day, I cut the session short and only got data on two objects.

 

M13 Globula Cluster. 100×30 sec, Gain 42 and 1hr (60×60 sec) at Gain 30, Offset 31, QHY183c at -10C, UHC-S filter, Televue TV-85 at F/5.6.