Observation by Peter Goodhew FRAS: LTNF 1

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Peter Goodhew FRAS

Observer

Peter Goodhew FRAS

Observed

2019 May 05 - 11:30

Uploaded

2019 May 18 - 11:34

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Constellation

Ursa Major

Field centre

RA: 11^h57^m
Dec: +48°56'
Position angle: -0°54'

Field size

0°22' × 0°18'

Equipment

APM TMB 152 LZOS refractors
10Micron GM2000 HPS mount
QSI6120wsg8 cameras

Exposure

26h40m total integration (40x1800s LOIII at nin 3x3, LRGB all 20x300s at bin 1x1). Captured on my dual rig APM TMB 152 setup.

Location

Fregenal de la Sierra, Spain

Target name

LTNF 1

Title

LTNF 1

About this image

A planetary nebula in the constellation of Ursa Major.
Exceptionally faint and rarely imaged because it's so faint. Indeed the only previous image I could find was by Robert Pölzl.
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.
26h40m total integration (40x1800s OIII at bin 3x3, LRGB all 20x300s at bin 1x1). Captured on my dual rig APM TMB 152 setup.
e-Eye, Spain 4/5-7/5/2019.
APM TMB 152 F8 LZOS scopes, 10 Micron GM2000HPS mount, QSI6120wsg8 cameras
Many thanks to Sakib Rasool for suggesting this target to me.

Files associated with this observation

LTNF1 final new.jpg (80.3 kB)

Like this image

Jeremy Shears, David Basey, Andy Wilson, Graham Winstanley, Mr Michael Alan Frost, Callum Potter, Geof Lewis, Ian Rothwell, Nick Hewitt, Andrew Dumbleton, Peter Carson

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