Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  PK144+65.1
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LTNF 1 aka PNG 144.8+65.8, 



    
        

            Peter Goodhew
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LTNF 1 aka PNG 144.8+65.8

Getting plate-solving status, please wait...
LTNF 1 aka PNG 144.8+65.8, 



    
        

            Peter Goodhew
Powered byPixInsight

LTNF 1 aka PNG 144.8+65.8

Imaging Telescopes Or Lenses
APM Telescopes TMB - LZOS Apo refractor 152/1200
Imaging Cameras
QSI 6120wsg-8
Mounts
10Micron GM2000HPS II
Guiding Cameras
Starlight Xpress Lodestar Autoguider X2

Acquisition details

Dates:
May 5, 2019
Frames:
Astrodon Blue: 20x300" (1h 40') bin 1x1
Astrodon OIII 3 nm: 40x1800" (20h) bin 3x3
Green: 20x300" (1h 40') bin 1x1
Lum: 20x300" (1h 40') bin 1x1
Red: 20x300" (1h 40')
Integration:
26h 40'
Avg. Moon age:
0.54 days
Avg. Moon phase:
0.32%

RA center: 11h57m38s.170

DEC center: +48°5638.12

Pixel scale: 0.533 arcsec/pixel

Orientation: -0.892 degrees

Field radius: 0.248 degrees

More info:Open 

Resolution: 2586x2124

Locations: e-Eye, Fregenal de la Sierra, Extramadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

A planetary nebula in the constellation of Ursa Major. Exceptionally faint and rarely imaged because it's so faint. Indeed the only previous images I could find were http://astrofotos.at/Bildergallerie/sternenhaufenetc/#&gid=1&pid=ltnf1-cut https://www.astrobin.com/400910/B/ A very obscure high excitation planetary nebula discovered in 1995 by James Liebert, Richard Tweedy, Ralf Napiwotzki and Michael Fulbright. At its heart is the eclipsing binary star system BE Ursae Majoris. This is so faint that it's almost invisible on 1800s exposures, so I had to resort to capturing OIII data at bin 3x3, and lots! There is a tiny amount of Ha, but even 1800s at bin 4x4 it was too faint to use. Many thanks to Sakib Rasool for suggesting this target to me.

Comments

Revisions

  • LTNF 1 aka PNG 144.8+65.8, 



    
        

            Peter Goodhew
    Original
  • LTNF 1 aka PNG 144.8+65.8, 



    
        

            Peter Goodhew
    B
  • Final
    LTNF 1 aka PNG 144.8+65.8, 



    
        

            Peter Goodhew
    C

B

Description: rotated

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Sky plot

Sky plot

Histogram

LTNF 1 aka PNG 144.8+65.8, 



    
        

            Peter Goodhew

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Planetary Nebulae