◀ DELICATE STRUCTURE César Blanco González Use of the "Hubble palette" - which assigns emission from hydrogen-alpha to green, oxygen ions to blue, and sulfur ions to red - reveals subtle colors and details in the North America Nebula (NGC 7000, at left) and Pelican Nebula (IC 5067/5070) in Cygnus. Details: Takahashi FSQ-106ED astrograph, QHY8 and QSI 583ws CCD cameras, and Astronomik narrowband filters. Total exposure: 20¾ hours. ▾ PRET T Y PL ANET PAIRING Patricio Calderari Bright Venus and dimmer Mercury, separated by just 0.6°, dramatically highlight the richly colored sunset seen on January 10th from Balduana, Switzerland. Details: Nikon D800 DSLR with 70-to-200-mm zoom lens used at 200 mm. Exposure: 2 seconds at ISO 400. Sk yandTelescope.com June 2015 77http://www.SkyandTelescope.com