Hemisphere:  Northern  ·  Constellation: Leo (Leo)  ·  Contains:  NGC 2903  ·  NGC 2905
Getting plate-solving status, please wait...
NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes
Powered byPixInsight

NGC 2905 - A Sometimes Overlooked Gem in Leo

Getting plate-solving status, please wait...
NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes
Powered byPixInsight

NGC 2905 - A Sometimes Overlooked Gem in Leo

Imaging Telescopes Or Lenses
Celestron C14 EDGE HD
Imaging Cameras
FLI MicroLine 16803
Mounts
Astro-Physics AP 1600
Filters
Astrodon LRGB 50mm
Accessories
Starlight Instruments Focus Boss Sytstem · IFI ONAG XM
Software
PixInsight · Astro-Physics Command Center (APCC) Pro Software · Optec FocusLock (for ONAG) · Adobe Photoshop CC (64 Bit) · DC-3 Dreams Pinpoint · Cyanogen MaxIm DL Pro 6
Guiding Cameras
ZWO ASI 1600MM cool

Acquisition details

Dates:
March 20, 2018 ·  March 21, 2018 ·  April 2, 2018 ·  April 9, 2018
Frames:
Astrodon B Tru-Balance E-Series Gen 2: 12x1200" (4h) -35°C bin 1x1
Astrodon G Tru-Balance E-Series Gen 2: 10x1200" (3h 20') -35°C bin 1x1
Astrodon L Gen.2 E-series: 15x1200" (5h) -35°C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 9x1200" (3h) -35°C bin 1x1
Integration:
15h 20'
Darks:
13
Flats:
13
Bias:
20
Avg. Moon age:
11.75 days
Avg. Moon phase:
40.35%
Mean FWHM:
2.20
Temperature:
23.33

RA center: 09h32m12s.294

DEC center: +21°2946.94

Pixel scale: 0.478 arcsec/pixel

Orientation: -90.757 degrees

Field radius: 0.240 degrees

More info:Open 

Resolution: 2553x2553

Locations: Deep Sky West, Rowe, NM, United States

Data source: Own remote observatory

Remote source: DeepSkyWest

Description

NGC 2905 is a bright barred spiral galaxy in the constellation of Leo. It lies at a distance of 30 Mly and has a diameter of 80,000 ly -- just a little smaller than the Milky Way. It's one of the brighter galaxies in the northern sky, which makes it surprising that it wasn't cataloged by Messier. Stellar formation is very active in the core, which is also bright in the UV, Xray, and Infrared bands. The spiral arms are littered with young, bright, blue stars and clusters. The complex web of dust lanes running throughout the core make this galaxy a particularly interesting target for high-resolution imaging.

I spent over a month taking this data. Along the way, I had to install and commission a new computer after my high-end industrial computer died when the display chip failed on the motherboard. The replacement home-brew computer has locked up, blue-screened, and gave me endless troubles while I tried to get this data. (I now have yet another computer on order, which will be the fourth one I've had out there in only 6 months.) On top of that, fog, frost, poor seeing, wind, and clouds seemed to coincide with the darkest new moon nights. The net result is that even though I'm operating at a remote dark site, my throughput has been pretty pathetic lately. At this point, I try not to think about how much each one of these images cost and I'm trying Zen out on the journey. I hope that you enjoy it as much as I did taking it! As always, C&C is welcome.

John

Comments

Revisions

    NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes
    Original
    NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes
    B
    NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes
    C
  • Final
    NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes
    E

E

Description: Decreased background by a very small amount.

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 2905 - A Sometimes Overlooked Gem in Leo, 



    
        

            John Hayes

In these public groups

Cloudy Nights