|NGC7293. The Helix Nebula
|Planetary Nebula in Aquarius
is one of the closest planetary nebulas, and it is the one with the
largest apparent size, 16 arcminutes (its halo goes to 28 arcminutes).
Although it is pretty bright, as its light covers a wide area, its
visual observation becomes difficult.|
Distance to Earth: 550 light years.
Visual magnitude: 7,3
|Date and location||28-ago-2005. Caraquiz, Madrid|
|Telescope||Megrez II 80ED, f=560mm. Autoguíde with Toucam and LX200GPS|
|Camera||Artemis285. IDAS LPS Hutech filter, with IR cut
||L: 6x300s; H-alfa: 3x300s; RGB:2x300s. Images stacked and RGB composition with AIP4WIN. LRGB with Adobe Photoshop. Filter with Pixinsight|
|Visits since september 14th 2004:|