Albireo double star          Click on photo to return to 'Open Clusters and Star fields'                                      Home
Albireo     The Scout Double

SAO 87301   Flamsteed-Bayer: 6-Beta1 Cygni      Spectral: K3II+...Hipparcos Catalog
Proper motion (mas/yr): RA = -7.09, Dec = -5.63       Magnitudes Bt: 4.478, Vt: 3.200
Distance: 385.53 light-years, 24381226.45 astronomical units.     Parallax: 8.460 mas, 118.2033 pc
Magnitude: 3.05
RA: 19h 30m 43.281s  Dec: +27°57'34.852"  (Epoch 2000)    Azm: 83°09'51"  Alt: +38°40'54"
Rise: 22:30  Transit: 06:20  Set: 14:06

I am really struck with the visual color difference of these two stars. These colors can be seen with a moderate size telescope, 8 inch or larger and even in smaller ones.
The blue star is 35 arc seconds away from Albireo in the sky. The blue star is magnitude 5.12 & Albireo is 3.05 making a very interesting visual double star.

Photo Specifications:

16" F/4.87  Newtonian     ST-8XE, CFW8     9/18/06    Temp. = -13 C

Filter
Exposure time
Number of exposures
Binning
Luminance
Red
30 sec
10
1x1
Green
30 sec
10
1x1
Blue
48 sec
10
1x1
Other








Processing:    MaxIm; align, color combine, CCDStack processing