Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  PK144+65.1
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LTNF 1 - 73 hours, 



    
        

            Peter Goodhew
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Getting plate-solving status, please wait...
LTNF 1 - 73 hours, 



    
        

            Peter Goodhew
Powered byPixInsight

Acquisition details

Frames:
Astrodon Gen1 E-Series Tru-Balance Blue: 41×300(3h 25′) bin 1×1
Astrodon Gen1 E-Series Tru-Balance Lum: 18×300(1h 30′) bin 1×1
Astrodon Gen1 E-Series Tru-Balance Red: 36×300(3h) bin 1×1
Astrodon Gen2 E-Series Tru-Balance Green 1.25": 36×300(3h) bin 1×1
Astrodon OIII 3nm 1.25": 68×1800(34h) bin 1×1
Astrodon OIII 3nm 1.25": 2×900(30′) bin 1×1
Chroma OIII 3nm Bandpass 2": 168×600(28h) bin 2×2
Integration:
73h 25′

RA center: 11h57m37s.888

DEC center: +48°5635.28

Pixel scale: 0.531 arcsec/pixel

Orientation: 0.897 degrees

Field radius: 0.301 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 3468x2153

File size: 230.0 KB

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

LTNF 1 is an extremely faint and rarely-imaged highly-evolved planetary nebula in the constellation Ursa Major. It is a high-excitation nebula with an eclipsing binary star system (BE Ursae Majoris) at its centre which has resulted in its unusual morphology. It is around 5,000 light years from Earth. It is so transparent that galaxies can be seen through it. It was discovered by James Liebert, Richard Tweedy, Ralf Napiwotzki and Michael Fulbright in 1995.
 A joint project with Sven Eklund.

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LTNF 1 - 73 hours, 



    
        

            Peter Goodhew