Albireo (Beta Cygni / Struve-A 43)

Digital Illustration of Albireo (Beta Cygni / STFA 43)

Digital Illustration of Albireo (Beta Cygni / Struve-A 43)

Click image to view larger version.

Observation Notes - October 15/16, 2011:

Albireo gets its startling beauty not only from its striking color contrast, but also from the rich star field that surrounds it. I wanted to make an updated sketch that shows that field at lower power. This shows the double in a 35 arc minute wide 120X field. I also took a few minutes to measure separation and PA, recorded below.

SubjectAlbireo / Beta Cygni (STF-A 43)
ClassificationDouble Star
Position (J2000)Cygnus [RA: 19:30:43.281 / Dec: +27:57:34.85]*
Position Angle*AB: 54° [My Measurement 2011.9]
AB: 54° [WDS 2010]*
Separation*AB: 36" [My Measurement 2011.9]
AB: 34.8 [WDS 2010]*
Spectral Types*K3II/B8V
Date/TimeOCT 15, 2011 - 10:00 MST (OCT 16, 2011 - 05:00 UT)
Observing Loc.Flagstaff, AZ - Home
InstrumentOrion SkyQuest XT8 Dobsonian (203 mm dia./1200 mm F/L)
Eyepieces/Mag.Pentax XW10 (120X)
Meade Astrometric EP + 2X Barlow (200X)
ConditionsClear, cool, rising gibbous moon
Seeing5/10 Pickering
TransparencyMag. ~5.2 NELM
*ReferencesThe Washington Visual Double Star Catalog (Mason+, 2001-2012)

Observation Notes and Sketch - September 4, 2006:

After viewing several subtly or elusively colored doubles, this pair was like dynamite! The purest yellow primary with a deep blue secondary snuggled amid a number of fainter stars that sprinkled the high power view. It looks even better at low power with a greater number of field stars and those saturated colors nestled even closer to each other.

Date/TimeSEP 04, 2006 - 1:10 AM MST (SEP 04, 2006 - 08:25 UT)
Observing Loc.Flagstaff, AZ - Home
InstrumentOrion SVP 6LT Reflector (150 mm dia./1200 mm F/L)
Eyepieces/Mag.10 mm Sirius Plossl + 2X Barlow (240X)
ConditionsClear, calm
Seeing5/10 Pickering
TransparencyNELM Mag ~4.0

The Cerulean Arc

My weblog for
everything else non-astronomy

Pin at will!

(Thanks for maintaining
return links.)

About this Entry

This page contains a single entry by Jeremy Perez published on June 9, 2012 8:00 PM.

Transit of Venus - June 5/6, 2012 was the previous entry in this blog.

Epsilon Bootis (Izar / Struve 1877) is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.


Monthly Archives

Powered by Movable Type 5.2.3