Tag: IC1805

IC1805 Heart Nebula and IC1848 Soul Nebula

One of the last deep space objects I captured on Crete are two visually large nebulae. And these are IC1805 Heart Nebula and IC 1848 Soul Nebula. Both are very dim objects, therefore I set the shutter speed of the Canon EOS 6Da camera to 3 minutes and let it capture the light shooting from the constellation Perseus the whole night long. Even NGC 884 869 Double Cluster fit in the field of view.

Technical details:

LensAskar FMA180 F4.5
CameraCanon EOS 6Da
MountiOptron Skyguider Pro
Exposure50x180s, ISO 1600
Date2021-07-12

IC1805 Heart nebula

Visual angle (visual size) of this nebula is several times bigger than visual angle/size of the full Moon; therefore I had to use the shortest focal length I have available. For DSOs like that I have small newton telescope with aperture 150 mm and focal length 600 mm. The focal length was reduced by ASA reducer to 438 mm.

Heart nebula is very dim DSO; therefore narrow band is good option to get some contrast. I managed to collect a lot of data for all 3 channels: Ha, OIII and SII. Final picture was composed in Hubble palette. This means OIII goes into blue, Ha in green and SII into red channel.

IC1805_Heart_2015-11-09-30C-600s-17Ha21OIII25SII-SQM_20_3_FL430_Ha2OIII2SII_noG