This holiday season there’s something to look forward to seeing in the sky aside from a red-nosed reindeer pulling a sleigh. On December 21, Jupiter and Saturn will form a rare alignment creating what looks like a double planet. The celestial event on the winter solstice will form a so-called Christmas Star.

What makes this year’s spectacle so rare? According to NASA, it’s been nearly 400 years since the planets passed this close to each other in the sky, and nearly 800 years since the alignment of Saturn and Jupiter occurred at night, as it will for 2020, allowing nearly everyone around the world to witness this “great conjunction.”

In the spirit of this once-in-a-lifetime phenomenon, here’s a selection of homes in locations that are perfect for soaking in some of the best celestial views on Earth. These communities offer iconic nearby national parks, natural areas and the opportunity to take in the wonder of the starry night sky.

Pasadena, California 

Located 20 minutes from the Griffith Observatory and only 12 minutes from the Angeles National Forest, Pasadena has long been a special place for astronomy for more than 100 years. Many significant discoveries in astronomy, including magnetic fields in sunspots, the expansion of the universe and the first evidence of the dark matter have been made by Pasadena astronomers. With its rich history in astronomy, the city has become a nurturing ground for innovations and producing a series of cutting-edge discoveries.

The Terraces at the Ambassador Gardens by etco Homes boasts a collection of 60 contemporary flats and townhomes in the historic Ambassador Gardens. Featuring interiors by Los Angeles-based designers Casa Stilo and Meredith Baer and priced from the mid-$2 million range, residences spread from 3,040 to 4,430 square feet and offer three- and four-bedroom floor plans and up to three baths and two powder rooms.

A three-bedroom home is on the market here for $3.68 million. Among the amenities are a concierge and security features. Each tri-level townhome includes private elevators, butler’s pantries, personal four-car garages and  rooftop terraces. The Terraces is within walking distance to the fashionable and landmark Old Town Pasadena area, offering residents a unique variety of historical, cultural, shopping and food destinations.