The total exposure times were 100 min using an OIII filter, 140 min using a SII filter and 180 min using a H-alpha filter. This gives a total exposure time of 7 hours.
NGC 2174 The Monkey Head Nebula
Closer view
Sunday, 19 April 2020
NGC 2174 The Monkey Head Nebula
The image is a composite of three images taken through three different telescopes; a 250mm reflector, a 102mm refractor and an 80mm refractor.
The total exposure times were 100 min using an OIII filter, 140 min using a SII filter and 180 min using a H-alpha filter. This gives a total exposure time of 7 hours.
The total exposure times were 100 min using an OIII filter, 140 min using a SII filter and 180 min using a H-alpha filter. This gives a total exposure time of 7 hours.
