Hemisphere:  Northern  ·  Constellation: Leo (Leo)  ·  Contains:  32 alf Leo  ·  IC 591  ·  Regulus  ·  The star Regulus (αLeo)
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Regulus in Leo, 



    
        

            Matt Harbison
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Regulus in Leo

Getting plate-solving status, please wait...
Regulus in Leo, 



    
        

            Matt Harbison
Powered byPixInsight

Regulus in Leo

Imaging Telescopes Or Lenses
Scope #1 (William Optics FLT 132 Triplet APO WOFLT132)
Imaging Cameras
QHY 16200A
Mounts
Astro-Physics Mach 1 GTO
Filters
Astrodon Tru-Balance LRGB E-Series Gen 2
Accessories
Optec Alnitak Flip-Flat Flat Fielder · QHY Med OAG QHYOAG-M · Moonlite DRO focuser&rotator Moonlite DRO Focuser & Rotator · William Optics Reducer WO 0.80 #1
Software
Adobe Photoshop · Sequence Generator Pro · PixInsight · Adobe Lightroom LR
Guiding Telescopes Or Lenses
Scope #1 (William Optics FLT 132 Triplet APO WOFLT132)
Guiding Cameras
QHYCCD QHY5L-II M

Acquisition details

Dates:
April 1, 2019
Frames:
Astrodon Tru-Balance LRGB E-Series Gen 2: 100x120" (3h 20') -12°C bin 1x1
Integration:
3h 20'
Darks:
100
Flats:
100
Bias:
100
Avg. Moon age:
26.01 days
Avg. Moon phase:
13.39%
Bortle Dark-Sky Scale:
2.00

RA center: 10h08m20s.69

DEC center: +11°5810.5

Pixel scale: 1.660 arcsec/pixel

Orientation: 177.092 degrees

Field radius: 1.093 degrees

More info:Open 

Resolution: 4021x2513

Locations: Marathon Motel, Marathon Motel, TX, United States; MaRIO, Marathon, Texas, None

Data source: Own remote observatory

Remote source: Marathon Remote Imaging Observatory (MaRIO)

Description

Regulus (the star) in the constellation Leo is accompanied in view by the galaxy UGC 5470. This tiny blue fuzz you see is a dwarf galaxy- Leo 1 or UGC5470/PGC 29488, and is sometimes called the "Regulus Dwarf".

Regulus, while being a blue/white main sequence star like our own, rotates rapidly taking only 15-16 earth hours to complete a rotation. This increased rotation and it's size (and possibly other forces unknown to me) have caused it to become almost egg-shaped. While filling my cameras sensor, appearing to be one star, it is actually at least a quadruple system with four stars in it's grasp. It is roughly 3.5 times the size of Sol and has a luminosity of 240 times more. It is 77.5 light years from the Earth.

I first observed this star in the spring of 2017 with my friends and fellow Barnard Astronomical Society of Chattanooga members, Ralph McConnell and Harold Harris while participating in one of Ralph's monthly star hopping challenges from the Barnard Astronomical Society of Chattanooga’s monthly newsletter. I've just now gotten around to turning the camera on it for a few months.

Captured in Marathon, Texas at MARIO Telescopes LLC.

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Regulus in Leo, 



    
        

            Matt Harbison