Albireo

(redirected from Beta Cygni)

Albireo

(al-beer -ee-oh) (β Cyg) A beautiful double star, the second brightest star in the constellation Cygnus. The primary is an orange giant with a deep blue companion 35″ away. mv : 3.1 (A), 5.1 (B); spectral type: K5 II (A), B8 V (B).
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The beak of the Swan is marked by Beta Cygni, better known as Albireo, a lovely gold and blue pair that can be split in a small telescope at low magnification.
August: Vega's deep companions: brilliant Vega now burns near the zenith, with interesting deep-sky sights close by
Many people's favorite is magnificent Albireo (Beta Cygni).
Stargazing Simplified
The foot of the cross, or the beak of the swan, is marked by the modestly bright, 2nd-magnitude star Albireo (Beta Cygni).
September: stars of the summer triangle the end of summer finds Vega, Deneb, and Altair high overhead after dark
These 'classical doubles', as I would describe them, often consist of reddish primaries accompanied by bluish-green companions, of which Albireo (Beta Cygni), Almaach (Gamma Andromedae), Rasalgethi (Alpha Herculis) and 95 Herculis are prominent examples.
The double star with the greatest colour contrast
You could begin with Albireo (Beta Cygni) and Rasalgethi (Alpha Herculis), two of the color-contrast pairs that are very high in this sky.
An abundance of riches: summer evenings offer an amazing variety of sights
I drew up a double-star list and one by one began to bag its targets: Alpha Ursae Majoris, Epsilon Bootis, Alpha Canum Venaticorum, Gamma Leonis, Beta Cygni, Alpha Herculis, Epsilon Lyrae....
The joys of city observing: do you live in the middle of a light-polluted city? Armed with binoculars or a small telescope, you can hunt down and explore more interesting sky targets than you probably realize
Gold-and-blue Albireo (Beta Cygni) is the most famous color-contrast double star in the heavens.
The bird of the starry cross: Cygnus the Swan flies high on September evenings
I noted occasional glimpses of the first diffraction ring around the Airy disk when observing Albireo (Beta Cygni), particularly around the yellow star of this well-known colorful pair.
The STF Mirage 7 Mak: this premium 7-inch Maksutov-Cassegrain from Russia has caught the eye of Mak enthusiasts. Here's our take on its performance
Beta Cygni (Albireo), at the bottom of the cross, is the star of my great-great-grandfather Sumarlidi Sumarlidason, an Icelander who traveled the globe and left in his effects a timeworn handwritten genealogy that traces back my ancestors name by name for almost 1,700 years.
What star is that?

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