1831•Monthly Notices of the Royal Astronomical SocietyOpen access

II. A letter from Mr. Dawes to Mr. Herschel, giving observations of the double stars, 70 Ophiuchi, ; Ursae Majoris, 44 Bootis, Virginis, and Coronae, Castor, Leonis, and Bootis, made during the last and present year. Mr. Dawes is of opinion that the apparent discs are more affected by the aperture of the telescope than by any other circumstance ; and that this is the principal reason why a reflector presents a smaller image of a fixed star than an achromatic of equal illuminating power

Author information unavailable

Open full text 0 citations

Abstract

This record does not include an abstract. Use the full-text link above if available.

Open-access reader

About this research paper

What this paper is about

An abstract is not available in the OpenAlex record for this paper.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Key concepts: Physics, Astrophysics, Stars

Back to paper search Browse research topics Original source

II. A letter from Mr. Dawes to Mr. Herschel, giving observations of the double stars, 70 Ophiuchi, ; Ursae Majoris, 44 Bootis, Virginis, and Coronae, Castor, Leonis, and Bootis, made during the last and present year. Mr. Dawes is of opinion that the apparent discs are more affected by the aperture of the telescope than by any other circumstance ; and that this is the principal reason why a reflector presents a smaller image of a fixed star than an achromatic of equal illuminating power — Research Paper | ScholarLens