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Lior Spiegel
April 26, 2019
741
post image

Contains: Deep sky object

Acquisition Details

Date Posted: April 26, 2019

Equipment card

Description

IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) is a galactic supernova remnant (SNR) in the constellation Gemini. it is located near the star Eta Geminorum (Not shown in this image). Its distance is roughly 5,000 light years from Earth. This is only part of the nebula, I couldn`t catch all the nebula since I use a relatively small sensor on my CCD camera, to catch all this huge nebula I`ll need to do some mosaic, I also framed the camera angle that I won`t include the bright star Eta Geminorum which take all the attention from the beauty of this nebula. The version of this image is an HaRGB, made in two sessions. First session took place from Negev desert Israel on Feb 1st, 2019,, RGB- 14x300sec - bin 2x2 @ -15c` (Each), Total of 3.5h. When I started the first session the object was already close to the Meridian, so most of the data I took were after Meridian flip. Second session took place from Negev desert Israel on Mar 8th, 2019, Ha- 12x900sec - bin 1x1 @ -15c`. Total of 3h. At this time the object was already at the west side of the Meridian so all I could gather is 3h of data before object was too low at the sky. Equipment used: Scope-TMB 130ss with WO Flat8 super Apo reducer x0.72 @ f/5 (655 FL). Mount- Losmandy Astronomical G11 G2 modified. Camera- Starlight Xpress Ltd Trius SX694 mono & SX Filter Wheel & Astrodon 36mm unmounted E series Gen2 RGB,Ha. Guider- Starlight Xpress Ltd Lodestar x2 & SX OAG. Software: Camera & mount control- SGP via Ascom Guiding- PHD Sky chart- Stellarium Mount main control- Gemini2 via Ascom Registration, Calibration & stacking images- Maxim DL5 Processing- PS CS6



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