Lyra    (RA 18h 37m, Dec 38º 46')
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The photo below was obtained by combining three 8-sec exposures. Many +8th magnitude stars are visible. The "pink" bright star is "Vega", the brightest star in the sky with absolute magnitude of +0.5. It is not actually a "pink" star but instead a blue-green "dwarf" star of temperature 9500 Kelvin. The "pink" glow is caused by editing artifact.

(mouse over the photo to see star chart)

The Greek "epsilon" marks a binary star system, epsilon 1 and 2. The Greek "delta" marks another binary star system, delta 1 and 2. This delta binary system does have a blue and red star. Lastly, the Greek "beta" marks a variable star; a star that changes its brightness periodically.

Camera: Canon G1 Digital Category: Astronomy
Condition: Outdoor at Night Ext. Light Source: None
Format: JPEG 2048 x 1537 (fine) F-Stop: 2.0
Speed: 8 sec Exposure Comp.: 0
ISO: 50 Metering Mode: Center-Weighted Ave.
White Balance Mode: Daylight Distance: Infinite
Focal Length: 21 mm Tripod: Yes
Filter: None Resized: Yes
Flash: None Editing Software: Photoshop 6
Corel Photo 9
Other: Employed "darkfield subtraction" and "screened-stacking" techniques to remove CCD noise and produce the effect of longer exposure, respectively.

© 2001 by Arif. Email at arif06880@yahoo.com.