Observation Notes:
This was a pale yellow primary with a dull red-orange secondary. They appeared to be separated by about 5 1st-diffraction ring radii.
| Subject | Xi Bootis (âˆ'1888) |
| Classification | Double Star |
| Position (J2000) | Bootes [RA: 14:51:23.4 / Dec: +19:06:01]* |
| Position Angle* | 321° (1997) |
| Separation* | 6.7" (1997) |
| Magnitudes* | 4.7 / 7.0 |
| Spectral Types* | - |
| Date/Time | SEP 03, 2006 - 10:15 PM MST (SEP 04, 2006 - 05:15 UT) |
| Observing Loc. | Flagstaff, AZ - Home |
| Instrument | Orion SVP 6LT Reflector (150 mm dia./1200 mm F/L) |
| Eyepieces/Mag. | 10 mm + 2X Barlow (240X) |
| Conditions | Partly cloudy, calm |
| Seeing | 4/10 |
| Transparency | NELM Mag ~4.0 |
| References | The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996); Double Star Measurements (Alzner, 1998) via VizieR |
*Based on published data.
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