Search: Littrow, Joseph Johann in addressee 
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From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[11 December 1821]
Source of text:
RS:HS 19.8
Summary:

JL was elected associate of Astronomical Society. Received JL's books and papers. Will send Society's Transactions. John Pond gave permission to test Robert Molyneux's clock at Royal Observatory. Questions F. G. W. Struve's transit determinations of double stars. Pond discovered errors in Greenwich transit instrument and places little dependence on its observations since late 1819. Sends John Brinkley's analysis [of April 1821 comet observed by Basil Hall in southern hemisphere]. Asks about Halley's Comet and parallax. Wants information on object glasses of 6-inch diameter or greater. Requests copy of JL's annual published observations.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[25 June 1822]
Source of text:
Columbia Univ. Library (ACCS: RS:HS 19.8 & C: 20.145)
Summary:

Thanks for the publications sent; lists materials JH is sending JL. Asks about quality of Josef Fraunhofer's large telescopes. JH read part of JL's letter of 2 Jan. 1822 at Astronomical Society meeting. Discusses proper motion of sun, JL's work on latitude of the pole star, observatory clocks, micrometers, and the Cambridge Observatory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[20 December 1822]
Source of text:
RS:HS 11.239 & 20.159
Summary:

Has just heard that the ship carrying JL's clock arrived at Hamburg on the 5th. Gives the name of the Bank to which payment is to be made. Has used his Theory of Comets in a paper.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[21 January 1824]
Source of text:
RS:HS 19.8
Summary:

Receipt and shipment of various papers and letters. Robert Molyneux has not received payment for clock. JH ordered another for L. A. Fallon; it is ready to ship. Clarifies Edward Sabine's remark about pendulums. Hopes to translate JL's Analytical Geometry. JH translated JL's 'empirical formula of refraction.' Believes JL's method of determining latitude without knowing the time is not new. Notes J. W. A. Pfaff's translation of William Herschel's works.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[25 January 1824]
Source of text:
RS:HS 11.245
Summary:

Approves of the plan for the observatory. Comments on some of the features. Good equatorial is a necessity. Will try to obtain a copy of the plan of the Cambridge Observatory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[9 November 1824]
Source of text:
RS:HS 11.248 (C: RS:HS 20.188)
Summary:

Has just returned from abroad and found his letter of April awaiting him. Hoped to visit Vienna when abroad. Has received money for the clock. Hopes to send his own paper on double stars later. Encloses some papers for distribution. Measured height of Etna when in Italy. Met Josef Fraunhofer and had an instructive discussion with him.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[17 May 1827]
Source of text:
NatLibScot MS.582, no.667
Summary:

Discusses JH's efforts to send various publications to JL and to receive publications from JL. Hopes Franz von Gruithuisen, whose 'strange' lunar observations are causing controversy, will come to England with his telescope. Discusses JH's progress in preparing a catalog of nebulae.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joseph Johann Littrow
Date:
[24 July 1828]
Source of text:
RS:HS 11.254 & 21.22
Summary:

Has been overwhelmed with work, which accounts for the delay in writing. Thanks for communications. Both are now printed. Comments on some of the points raised.

Contributor:
John Herschel Project