Object Type: Open Cluster – Planetary Nebula
Location: Barcelona – Spain
M46 is one of my favorites open cluster. But is necessary dark skies without light pollution in order to enjoy with its view.
This open cluster practically fills the eyepiece field with 50x. We can see a large number of stars not too bright, between 9th and 14th magnitude… and the surprise: the planetary nebula NGC2438. To see the planetary I had to use an OIII filter.
For more details of my observation you can visit my blog:
M46 – Open Cluster / NGC 2438 Planetary Nebula
Date and Time: 2010-01-15, 23h 24m UT
Telescope: SC Celestron Nexstar 5i (5″)
Eyepiece: 25mm (50x)
White paper, HB2 graphite pencil, and scanned and inverted with Photoshop
Seeing: 4/5 (5 the best)
Transparency: Clear. Moderate light pollution.
Location Constellation: Puppis
Position: R.A. 07 h 42 min
Dec. -14° 49′
Thank you and best regards.