Stephenson1 is a loose open cluster in Lyrae centered around the wide double star delta Lyrae which consists of Delta 1, the blue main sequence star of spectral type B2.5V and Delta 2, the variable Red Giant. It has been debated whether or not this star is a true binary (probably no) and whether or not this sparse open cluster is a true cluster (probably yes).

Imaging Camera: QSI640wsg
Imaging Scope: Takahashi FSQ85ED @F/5.3
Guide Camera: SX Lodestar
Mount: Avalon M-Uno
Filters: Astrodon LRGB
Exposure: 50 minutes Luminance (5 minute subs) 15 minutes RGB (2.5 minute subs, Binx2)
Capture: APT
Processing: CCD Stack and PS CC
Date: 6/11/16 Location: My front driveway. Morristown, NJ