Astrometric observations of visual binaries using 26‐inch refractor at Pulkovo Observatory during 2014–2019. Issue 8 (13th September 2020)

• Record Type: Journal Article
• Authors: Izmailov, Igor; Rublevsky, Aleksey; Apetyan, Arina
• Is Part Of: Astronomische Nachrichten. Volume 341:Issue 8(2020)
• Page Start: 762
• Page End: 769
• Publication Date: 2020-09-13
• Subjects: binaries: visual -- methods: observational; Astronomy -- Periodicals; 520.5
• DOI: 10.1002/asna.202013815
• Languages: English
• ISSNs: 0004-6337

Abstract

Abstract: We present 18, 365 astrometric observations of 290 visual binaries obtained with the 26‐inch refractor of Pulkovo Observatory during 2014–2019. The separation between components is from 1″.3 to 37″ with a median value of 4″.8. For a single observation, the mean separation error is 0″.013, and the mean position angle error is 0 ∘ .44/ ρ, where ρ is an angular distance in arcseconds. We compare the observations of sample stars with the data from the Gaia DR2 catalog and the results of the ground‐based observations performed with other telescopes.