| Authorised form of name | Roberts; Isaac (1829 - 1904) |
| Dates | 1829 - 1904 |
| Nationality | British |
| Place of birth | Groes, Denbighshire |
| Date of birth | 27 January 1829 |
| Place of death | Crowborough, Sussex |
| Date of death | 17/07/1904 |
| Dates and places | Burial:
Birkenhead cemetery, Flaybrick Hill, Birkenhead, Cheshire |
| Research field | Astronomy |
| Geology |
| Activity | Career:
Worked for a firm of builders and lime burners, Liverpool; became manager (1855); started his own business as a builder, Liverpool (1858); retired having earned enough to concentrate on science (1888); studied underground water; took up astronomy and became an expert in stellar photography; photographed the nebula in Andromeda (1888) and in Orion (1889); died suddenly; was cremated
Memberships:
FRAS (1882); FGS (1870)
|
| Membership category | Fellow |
| Date of election | 05/06/1890 |
| Relationships | Son of William Roberts, farmer.
Married: 1) (1875) Ellen Anne, daughter of Antony Cartmel; 2) (1901) Dorothea Klumpke of San Francisco |
| Sources | Sources:
Bulloch's Roll; DNB; DSB
Obituaries:
Proc Roy Soc 1905 vol 75 pp 356-363 signed by R S B |
| Royal Society code | NA7133 |
| Reference number | Title | Date |
| IM/Maull/003843 | Roberts, Isaac | nd |
| MC/19/699 | Letter from Dorothea Roberts, Starfield, Cowborough, Sussex, to the President of the Royal Society | 26 September 1904 |
| NLB/4/5 | Copy letter from Herbert Rix, to Isaac Roberts, Fellow of the Royal Society | 15 January 1890 |
| NLB/4/727 | Copy letter from Theodore E James, to Reverend Dr John Kerr, Isaac Roberts, Jethro Justinian Harris Teall, Richard Thorne Thorne, and Walter Frank Raphael Weldon | 9 October 1890 |
| NLB/6/338 | Copy letter from Herbert Rix, to Isaac Roberts, Fellow of the Royal Society | 21 April 1892 |
| MC/19/698 | Letter from Dorothea Roberts, Starfield, Cowborough, Sussex, to the Secretary of the Royal Society | 20 July 1904 |
| AP/66/26/2 | Unpublished photograph, 'Photograph of the region of the Great Nebula in Orion [M42] taken on 29 January and 3 February 1889' by Isaac Roberts | 1889 |
| EC/1890/12 | Roberts, Isaac: certificate of election to the Royal Society | |
| RR/10/374 | Second referee's report by William Henry Mahoney Christie, on a paper 'On a photographic method for determining variability in stars' by Isaac Roberts | 15 February 1890 |
| RR/10/372 | Referee's report by Andrew Ainslie Common, on a paper 'On a photographic method for determining variability in stars' by Isaac Roberts | 1 July 1890 |
| AP/66/26 | Unpublished paper, 'On a photographic method for determining variability in stars' by Isaac Roberts | 1889-1890 |
| NLB/11/34 | Copy list of exhibits, photographic exhibition, Imperial [Institute] | [April 1895] |
| RR/10/373 | Referee's report by William Henry Mahoney Christie, on a paper 'On a photographic method for determining variability in stars' by Isaac Roberts | 12 February 1890 |
| AP/64/5/1 | Unpublished manuscript, 'Star photography - the effects of long and short exposures on star magnitudes' by Isaac Roberts | 1886 |
| AP/64/5 | Unpublished paper, 'Star photography - the effects of long and short exposures on star magnitudes' by Isaac Roberts | 1886 |
| AP/64/5/2 | Unpublished photographs, 'Star Photography: Polaris and Trapezium Orion' by Isaac Roberts | 1886 |
| AP/66/26/1 | Unpublished manuscript, 'On a photographic method for determining variability in stars' by Isaac Roberts | 1890 |
| PP/4/22 | Paper, 'Determination of the vertical and lateral pressures of granular substances' by Isaac Roberts | 1883 |
| PP/4/22/1 | Manuscript, 'Determination of the vertical and lateral pressures of granular substances' by Isaac Roberts | 1883 |
| PP/4/22/2 | Diagram, 'Weighing machine for testing lateral pressure of granular substances' by Isaac Roberts | 1883 |
| NLB/23/2/540 | Copy letter from Joseph Larmor, to Mrs Isaac Roberts | 27 October 1904 |
| MC/19 | Volume 19 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1904 |