The extension to Burnham's General Catalogue of Double Stars

Aitken, R. G.

doi:10.1086/104732

Cited by 21 publications

(27 citation statements)

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“…The astrometric measurements are displayed in Table 1. The designation of the binary is given in the first three columns: the Washington Double Star Catalogue (WDS) name (Mason, Wycoff & Hartkopf 2005) in Column 1, the official double star designation in Column 2 (sequence is discoverer number) and the ADS number in Column 3 (Aitken 1932). For each observing sequence, we give the epoch of observation (Column 4) in fraction of Besselian years (2004+), the filter (Column 5) (whose characteristics are listed in table 1 of Paper I), the focal length of the eyepiece used for magnifying the image (Column 6), the angular separation ρ (Column 7) and its error (Column 8) in arcsec and the position angle θ (Column 9) and its error (Column 10) in degrees.…”

Section: Astrometric Measurementsmentioning

confidence: 99%

Speckle observations with PISCO in Merate - II. Astrometric measurements of visual binaries in 2004

Scardia¹,

Prieur²,

Pansecchi³

et al. 2006

Monthly Notices of the Royal Astronomical Society

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International audienceWe present relative astrometric measurements of visual binaries taken during the second semester of 2004 with the Pupil Interferometry Speckle camera and Coronagraph (PISCO) at the 1-m Zeiss telescope of the Brera Astronomical Observatory, in Merate, Italy. We performed 207 new observations of 194 objects with angular separations in the range 0.1-4.0 arcsec and an accuracy better than ~0.01 arcsec. Our sample contains orbital couples as well as binaries whose motion is still uncertain. Our purpose is to improve the accuracy of the orbits and constrain the masses of the components. Those measurements show that the orbit of ADS 15115 needs to be revised; we propose a new orbit for this object

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Section: Astrometric Measurementsmentioning

confidence: 99%

Speckle observations with PISCO in Merate - II. Astrometric measurements of visual binaries in 2004

Scardia¹,

Prieur²,

Pansecchi³

et al. 2006

Monthly Notices of the Royal Astronomical Society

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“…The astrometric measurements are displayed in Table 2. The designation is given in the first three columns: the Washington Double Star catalogue name (WDS, http://ad.usno.navy.mil/wds/wds.html) in column 1, the official double star designation in column 2 (sequence is discoverer number) and the ADS number in column 3 (Aitken 1932). For each observing sequence, we give the epoch of observation (column 4) in a fraction of Besselian years (2004+), the filter (column 5) whose characteristics are listed in Table 1, the angular separation ρ (column 6) and its error (column 7) in arcseconds, and the position angle θ (column 8) and its error (column 9) in degrees.…”

Section: Astrometric Measurementsmentioning

confidence: 99%

Speckle observations with PISCO in Merate -- I. Astrometric measurements of visual binaries in 2004

Scardia

Prieur

Sala

et al. 2005

Monthly Notices of the Royal Astronomical Society

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We present relative astrometric measurements of visual binaries made with the Pupil Interferometry Speckle camera and Coronagraph (PISCO) at the 1‐m Zeiss telescope of Brera Astronomical Observatory, in Merate. We provide 135 new observations of 103 objects, with angular separations in the range 0.1–4.0 arcsec and with an accuracy better than ∼0.01 arcsec. Our sample is made of orbital couples as well as binaries whose motion is still uncertain. Our purpose is to improve the accuracy of the orbits and constrain the masses of the components. This work already leads to the revision of the orbits of three systems (ADS 5447, 8035 and 8739).

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“…The astrometric measurements of the observations made in 2008 are displayed in Table 1. For each object, we report its WDS name (Washington Double Star Catalogue, Mason, Wycoff & Hartkopf 2010, hereafter WDS Catalogue) in Column 1, the official double star designation in Column 2 (sequence is ‘discoverer‐number’) and the ADS number in Column 3 (Aitken 1932). For each observation, we then give the epoch in Besselian years (Column 4), the filter (Column 5) and the focal length of the eyepiece used for magnifying the image (Column 6), the angular separation ρ (Column 7) with its error (Column 8) in arcsec and the position angle θ (Column 9) with its error (Column 10) in degrees.…”

Section: Astrometric Measurementsmentioning

confidence: 99%

Speckle observations with PISCO in Merate - IX. Astrometric measurements of visual binaries in 2008

Prieur¹,

Scardia²,

Pansecchi³

et al. 2010

Monthly Notices of the Royal Astronomical Society

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We present relative astrometric measurements of visual binaries, made in 2008 with the Pupil Interferometry Speckle camera and Coronagraph (PISCO) at the 102 cm Zeiss telescope of Brera Astronomical Observatory, in Merate. Our sample contains orbital couples as well as binaries whose motion is still uncertain. We obtained 240 new measurements of 237 objects with angular separations in the range 0.15-4.6 arcsec, and an average accuracy of 0.014 arcsec. The mean error on the position angles is 0. • 6. Most of the position angles were determined without the usual 180 • ambiguity with the application of triple-correlation techniques and/or by inspection of the long integration files.We have found a new component in ADS 11074. This component was not fully resolved in our previous observations of 2006, but it was clearly separated with the observations presented here.We also present the new revised orbits we have computed for ADS 11468, 13850 and 16057, for which our measurements lead to large residuals with the last published orbits. For ADS 13850, we propose to extend the quadrant correction that was previously used by the other authors to the first measurements made before 1930. In this way, we obtain an orbit with a longer period which leads to a much more plausible value for the total mass of the system.

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The extension to Burnham's General Catalogue of Double Stars

Cited by 21 publications

References 0 publications

Speckle observations with PISCO in Merate - II. Astrometric measurements of visual binaries in 2004

Speckle observations with PISCO in Merate - II. Astrometric measurements of visual binaries in 2004

Speckle observations with PISCO in Merate -- I. Astrometric measurements of visual binaries in 2004

Speckle observations with PISCO in Merate - IX. Astrometric measurements of visual binaries in 2008

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