Observation by Peter Goodhew FRAS: First image of Si 1-2

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Peter Goodhew FRAS

Observer

Peter Goodhew FRAS

Observed

2023 Aug 02 - 12:05

Uploaded

2023 Aug 08 - 12:09

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Constellation

Lyra

Field centre

RA: 19^h06^m
Dec: +27°12'
Position angle: -0°45'

Field size

0°24' × 0°17'

Equipment

APM TMB LZOS 152 Refractors
QSI6120 CCD Cameras
10Micron GM2000 HPS mount

Exposure

29 hours 45 minutes HaOIIIRGB

Location

Fregenal de la Sierra, Spain

Target name

Si 1-2

Title

First image of Si 1-2

About this image

Si 1-2 is an enigmatic planetary nebula that has, to my knowledge, never been imaged before.
It is relatively small at 60 arc seconds, and reasonably bright as this was captured by moonlight.
A Google search turns up no information about it, and remarkably not even the HASH database has an IPHAS image of it.
Spectroscopy wasn't performed until 15/05/2016 by the OSIRIS instrument.
Osiris is the Optical System for Imaging and low-Intermediate-Resolution Integrated Spectroscopy at the world's largest single-aperture optical telescope (the Gran Telescopio Canarias - a 10.4 m reflecting telescope located at the Roque de los Muchachos Observatory on the island of La Palma, in the Canaries, Spain).
This confirmed that Si 1-2 is a true planetary nebula.
My thanks to Sakib Rasool for suggesting this target.
Images were captured from my remote robotic dual-rig setup in Spain.
More information at https://www.imagingdeepspace.com/si-1-2.html

Files associated with this observation

Si 1-2.jpg (429.3 kB)

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Tim Haymes, Graham Winstanley

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