Messier Object 27, The Dumbbell Nebula

SH2-071

PLN36-1.1

Image Information
Date Imaged	6/25 & 26/2011
Location Imaged From
Location Imaged From	Tierra del Sol , CA
Equipment	Telescope: Astro Tech 8" RC Mount: Losmandy G11 w/ Gemini Camera: SBIG ST-2000XM Astrodon True-Balance Filters Focal Ratio: f/8.0
Exposure Information	LRGB 190:120:100:90
Data collection using: CCD Commander CCDSoft FocusMax PinPoint TheSky6 Pro Image Calibration - Maxim DL Image Registration - Maxim DL Image Stacking - Maxim DL Post processing in Adobe Photoshop CS4 Extended The central star is a binary with a period of ~68d varying by nearly 1 magnitude. The central object is a highly reddened B5 dwarf that is 1700 pc (5600 ly) distant. It is thought that PK36-1.1 contains 3 pairs of bipolar lobes shown in this drawing from the linked reference from 3 separate episodes, all younger than 10,000 years.